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Return-Path: Date: Fri, 9 Jan 1998 14:08:38 -0700 (MST) From: owner-fordtrucks61-79-digest To: fordtrucks61-79-digest Subject: fordtrucks61-79-digest V2 #13 Reply-To: fordtrucks61-79 Sender: owner-fordtrucks61-79-digest fordtrucks61-79-digest Friday, January 9 1998 Volume 02 : Number 013 ======================================================================= Ford Truck Enthusiasts - 1961-1979 Trucks Digest Visit our web site: http://www.ford-trucks.com/ - - - - - - - - - - - - - - - - - - - - - - - To unsubscribe, send email to: fordtrucks61-79-digest-request with the word "unsubscribe" in the body of the message. For help, send email to the same address with the word "help" in the body of the message. ======================================================================= In this issue: Re: ADVISE NEEDED!!! (re-sending 1/9/97 08:15) Thank You Ken!! [John Ham] Re: Power brake conversion ["Gary, 78 BBB" ] TQ's [am14 Re: Flex coupling on a '77 F150 2wd ["Gary, 78 BBB" ] Cleveland heads on a 351M [John Strauss ] 428 [am14 Re: Cleavland heads on a 351M ["Gary, 78 BBB" ] Brake pedal [am14 Re: Dual Batteries [Charlie Mear ] Re: 1979 F250 rear hub assembly ["Gary, 78 BBB" ] Intake manifold ["Art Lutz" ] Intake manifold ["Art Lutz" ] Re: Intake manifold [SuperMagot ] Re: ADVISE NEEDED!!! (re-sending 1/9/97 08:15) Thank You Ken!! ["Gary, 7] Re: 428 [marko ] Re: Intake manifold ["Gary, 78 BBB" ] Re: '77 351M vacuum line routing ["Dave Resch"] Re: Cleveland heads on a 351M ["Dave Resch"] Re: Dual Batteries [Kurt Albershardt ] Re: 1979 F250 rear hub assembly [danadeb Re: Intake manifold [danadeb Re: Master cylinder retrofit/ Trans ID/ Tire size ["JAMES MERLO" ======================================================================= ---------------------------------------------------------------------- Date: Fri, 09 Jan 1998 08:13:21 -0500 From: John Hammell Subject: Re: ADVISE NEEDED!!! (re-sending 1/9/97 08:15) Thank You Ken!! John Hammell wrote: > > Hi everyone!! This may be a little long winded, but first I must say how > much I admire all your motor and trany knowledge! I am not even close to > being in your "mechanical league", but I do enjoy my 67 F250 Camper > Special when it's running. I'm the guy with the tranny problem(C4)but > it's more of an inconvienience than a problem for now. In the mean time, > I have been having big time problems gettin' that old beast to kick over > when it's damp outside! Dosen't seem to matter the air temp,(we've been > having an early spring so far this winter!) But I think it has a lot to > do first off with the manual choke. I'm not sure if I'm operating it > right when I go to start. The manual tells you how to start in cold or > warm temp.(choke in for warm starts, out for cold) and to press and > release the gas pedal 1X. The problem is if she stalls out on the first > try, I'll be damned if she'll kick over on the second try!!! Of course > now I'm probably looking at a new battery because she don't have many > cranks left, cause if she don't kick back over on the second try she > dies!!!!! > Again, I am no where near as mechanically inclined as most of you, but > I'm capabel of changing my oil and also have tuned her up (with some > help) so I'm not opposed to sticking my nose in any where under her > hood!!!! > Wooooo!!!!!! I'm really babbalin' now so I'll sign off and see if anyone > can actually digest this stuff I'm babbalin' about!!! > BTW, thanks in advance for any info or advise!!!!!!1 ------------------------------ Date: Fri, 9 Jan 1998 08:26:44 +0000 From: "Gary, 78 BBB" Subject: Re: Power brake conversion > From: Schottsweb > Date: Thu, 8 Jan 1998 18:31:20 -0500 > Subject: Re: Power brake conversion > I have almost completed the swap I used the entire front end off of > a 75 pickup I also used a 75 power booster and master cylinder now > my pedal does'nt have the same height that it did before do I need > to get the pedal from a 75? What else if anything can I do to fix > this? Thanks for the help. Not sure but I think power brakes typically have a much shorter pedal throw than standard brakes so this may be what you see. My 78 PU finally has hard brakes and it actually stops but my bronco with exactly the same setup has mushy brakes with poor pedal and even when all the way out it seems like less than the PU but may just be my imagination. There is an adjustment in the booster push rod that takes up all the slack between the pedal and master cylinder at rest which may not be adjusted right. Did you check that? Michigan Pot Hole Jumpin Bronco lover, -- Gary -- ------------------------------ Date: Fri, 9 Jan 1998 08:42:17 -0500 From: am14 Subject: TQ's YO Gary: I'm not real familiar with the 351M/400, but I have torn one down. The part that goes up in the crankshaft end is definately different from the three or four 429s & 460's I have lying around. I'v never taken any measurements, but the 351M/400 TQ has a stepdown shape while the 429/460 has a straight shape to it. The old saying "If it fits - Use it" works well here. >>I've got both and use them interchangeably so I hope they are the same! Someone said the pilot diameter was different but I don't remember seeing that when I put it together? Azie ------------------------------ Date: Fri, 9 Jan 1998 08:44:20 +0000 From: "Gary, 78 BBB" Subject: Re: Flex coupling on a '77 F150 2wd > Date: Thu, 8 Jan 1998 13:51:52 -0800 (PST) > From: John Pajak > Subject: Re: Flex coupling on a '77 F150 2wd > >>No, too much work! The joint can be replaced without removing the > steering box. I don't even think the column needs to be > removed...just slide the steering shaft back...it will telescope > enough to get the old joint out. :) 2wd's don't have telescoping steering shafts or slip joints unfortunately but I believe one side of the joint can be slid up the shaft but not sure, it may have a shoulder in it to prevent that, can't remember right now. Michigan Pot Hole Jumpin Bronco lover, -- Gary -- ------------------------------ Date: Fri, 09 Jan 1998 08:04:50 -0600 From: John Strauss Subject: Cleveland heads on a 351M >I may have to be corrected on this and I'm sure that Dave R. will, but you >already have "Cleveland" heads on your 351. The difference is that you have >the 2V heads with smaller intake passages vs. the 4V heads which have much >larger diameter passages. The larger passages are actually better for high >RPM than for typical street driving. The smaller passages typically give >more low end torque which is better for the street. IMHO I think you would >be better served by having your existing heads "cleaned up" by a shop that >knows what they're doing and putting an aftermarket manifold and 600 cfm 4V >carb. > Bill, you won't get a correction from me. I think every you said here is spot-on. The 351M is basically a 2V Cleveland with a different bellhousing pattern and larger main journals. IMO 4V Cleveland heads have no place on a truck motor. _ _| ~~. John Strauss \, _} jstrauss \( Texas Fight! ------------------------------ Date: Fri, 9 Jan 1998 09:34:47 -0500 From: am14 Subject: 428 Jeff: FOMOCO balanced the 410/428 differently from the remainder of the FE family for a reason. I have no idea what that reason was, but I would think with their resources of both talent and money, the reason was a valid one. I would much rather balance the flywheel and the vibration damper to the 428 crank than to balance the 428 crankshaft to the 390 flywheel and vibration damper. All a matter of opinion I suppose. Good luck withever route you choose. Azie ------------------------------ Date: Fri, 9 Jan 1998 09:36:14 +0000 From: "Gary, 78 BBB" Subject: Re: Cleavland heads on a 351M > From: Gregg Park > Subject: Cleavland heads on a 351M > Date: Thu, 8 Jan 1998 15:38:08 -0800 > I'm going to do the heads on my '77 F150, w/a 351M. > My buddy is trying to temp me into putting the cleavland heads on > it. I don't think it will pass the smog test if I do. But just in > case, what kind of gain might I see with this mod? Would I have to > go to a bigger carb than the stock 2150 2V? Thanks, Gregg Your 2v intake manifold won't fit the intake ports without a lot of hogging if this is the 4v C head configuration and those ports probably won't do you any good with only a 2v intake anyway. You will lose bottom end in gobs and gain lots of top end but only if you put a 4v and proper intake on it along with proper exhaust and cam otherwise you will only see a reduction all around in performance. I put a full fledged, stock C with ford spread bore carb (highly recommended) in my van with 3.25 rear gears and a C-6 with stock converter (didn't know about all the good stuff then) and was very unhappy with it but have to admit that it really pulled above 45 as far as I cared to go. It just couldn't pull 5k# of 4x4 van at low speeds with those gears. Now the 460 is a whole nuther smoke! :-) Michigan Pot Hole Jumpin Bronco lover, -- Gary -- ------------------------------ Date: Fri, 9 Jan 1998 09:49:54 -0500 From: am14 Subject: Brake pedal GEORGE: Did you also get the little rod that goes into the master cylinder from the booster from the donor vehicle?? Those rods may be different. Also they are adjustable!! Maybe all you need is to adjust it.. The large piece from the pedal to the booster may also be different. I'm not sure anymore. Just ideas to look for!!! Power brakes are naturally lower pedal than non power brakes, aren't they??? >>I have almost completed the swap I used the entire front end off of a 75 pickup I also used a 75 power booster and master cylinder now my pedal does'nt have the same height that it did before do I need to get the pedal from a 75? What else if anything can I do to fix this? Thanks for the help. Good luck. Azie ------------------------------ Date: Fri, 9 Jan 1998 08:22:17 -0700 (MST) From: Charlie Mear Subject: Re: Dual Batteries I have a dual battery setup on a 79 F-250. Mine isn't a factory setup. The second battery is used to run accessories (lights, inflater, camping trailer, etc) without worrying about not being able to start the truck. There really is no headache to it. As far as expense, you can probably get set up for under $150 (battery tray, wire, isolater, battery). I use a deep cycle battery that can also be used to start the truck. There have been a couple of times where the kids leave something on or door open and run down the main battery. I can then start the truck with jumper cables from the aux battery. I view it as insurance, plus I don't worry about running accessories while the truck is off and harming the battery. The deep cycle batteries are suited to that kind of thing. Of course you will need to move those accessories to a circut driven by the aux battery and you may want a fuse block in between. Charlie > I've seen some 72-73 trucks with dual battery setups. Usually setup as > a heavy duty camping rig. Is this a factory setup? I can't find any > reference in the factory manuals. What is the advantage to two > batteries? Is it worth the expense/headache? Was this something that > had more value 20 years ago but less payoff now with advances in battery > technology? > > Tom H > San Francisco, California > 76 F-150 SuperCab 390FE > 96 Windstar 200 hp 3.8L (Wife's Hot Rod) ------------------------------ Date: Fri, 9 Jan 1998 10:58:28 +0000 From: "Gary, 78 BBB" Subject: Re: 1979 F250 rear hub assembly > Date: Thu, 08 Jan 1998 15:59:19 -0800 > From: marko > Subject: Re: 1979 F250 rear hub assembly > >>I am servicing my brakes for the first time on a 1979 F250 with > >>full floating rear axles (I assume they are Dana). My question > I say split the difference, and forget measuring end play (make sure > you give it a good wiggle and a listen). We used to fix 'em on I disagree here (unless you mean with a dial indicator in which case I agree). Tapered bearings require some free play, not much but some. Dana 44 front hubs require 0.001 - 0.010" axial free play. Dana 60's will be right in the same ball park as are most other timken type bearings. You can feel 0.010", you can't feel 0.001" unless you are a skilled mechanic so the trick is to JUST get the play out with outer nut locked down and you'll be about right. Drum brakes don't require the same preload as disk brakes so if they wind up a tad loose it won't hurt anything but a tad is still less than 0.010". Disk brakes need the minimum play so they don't push the piston back in so far you lose "pedal" and they tend to heat the outer races more which loosens the bearings as well. > highway trucks by tightening the inner nut to 100 pounds and backing > it off 1/8 - 1/4 turn, then putting on the lockwasher and the outer > nut, then tightening the outer nut, with final tightening via Huey > (4lb hammer) and cold chisel. The object is to seat the bearing I disagree, there is a cheap tool for these nuts available from JCwhitney and others. Don't use a chisel or punch, please! It will work but it damages the slots for future wrench use and can not be torqued properly that way. I've done it and the wheels never fell off but I won't do it now that I have the tools, believe me they just make the job so much easier :-) > properly (align it) then relieve tension without unseating it. And I agree, the torque of the inner nut is to seat the bearings, the backoff is only ball park and a place to start. > to put the outer locknut on tight enough that it isn't gonna fly off > and hurt somebody or you. You need to ensure that when you tighten > the outer nut, you do not turn the inner nut. So keep turning the I agree but the lock washer should guarantee that. If not and if the tabs have all been used, get a new one. Before putting it back on use a hammer to flatten out the washer and it's used tabs so the outer nut will tighten properly as well. Turning the wheel as you tighten AFAIK simply ensures that the bearings are centered, the lube is evenly distributed and helps ensure seating. The way to determine axial play is to rock the wheel top to bottom, back and forth as Marko said to try to sense any movement but to isolate the movement to the bearings only. With rear hubs this should be automatic since nothing else should move anyway. Just remember, loose it better than tight with tapered bearings but too loose is bad too so you need patience and usually several attempts with outer nut tight to get the right "feel". You can torque the inner nut, back out 1/4 turn, install the lock washer and outer nut and torque it or hammer it tight and be close and maybe the bearings will last as long as you own the truck but maybe not. I prefer to be a little more precise myself but that's just me :-) Happy wheeling :-) Michigan Pot Hole Jumpin Bronco lover, -- Gary -- ------------------------------ Date: Fri, 9 Jan 1998 08:17:14 -0800 From: "Art Lutz" Subject: Intake manifold I think I may have an Intake manifold leak on my 78 400. The manifold is a performer. Is there an easy way to tell if the manifold is sucking air? I tried running propane along the edge of the manifold , but did not notice any change in the Rpms. I did this at Idle, do I need to run the idle up for this to work. I was also told WD-40 works in the same way, but I have not tried it yet. Any other ideals. Thanks Art 78 F-250 4X4 XLT ------------------------------ Date: Fri, 9 Jan 1998 08:17:14 -0800 From: "Art Lutz" Subject: Intake manifold I think I may have an Intake manifold leak on my 78 400. The manifold is a performer. Is there an easy way to tell if the manifold is sucking air? I tried running propane along the edge of the manifold , but did not notice any change in the Rpms. I did this at Idle, do I need to run the idle up for this to work. I was also told WD-40 works in the same way, but I have not tried it yet. Any other ideals. Thanks Art 78 F-250 4X4 XLT ------------------------------ Date: Fri, 9 Jan 1998 11:52:44 EST From: SuperMagot Subject: Re: Intake manifold In a message dated 98-01-09 11:25:58 EST, you write: performer. Is there an easy way to tell if the manifold is sucking air? >> If WD-40 (or whatever) did not change the RPM then try using a vacuum gauge. If the leak is close to a cylinder intake port, you will get a pulse in the vacuum gauge every time that cylinder tries to suck in air. BTW, what makes you think you have a manifold leak? What are the symptoms? Maybe its something else... - - Mike ------------------------------ Date: Fri, 9 Jan 1998 11:55:24 +0000 From: "Gary, 78 BBB" Subject: Re: ADVISE NEEDED!!! (re-sending 1/9/97 08:15) Thank You Ken!! > Date: Fri, 09 Jan 1998 08:13:21 -0500 > From: John Hammell > Subject: Re: ADVISE NEEDED!!! (re-sending 1/9/97 08:15) Thank You Ken!! > > problem for now. In the mean time, I have been having big time > > problems gettin' that old beast to kick over when it's damp > > outside! Dosen't seem to matter the air temp,(we've been having an > > early spring so far this winter!) But I think it has a lot to do > > first off with the manual choke. I'm not sure if I'm operating it > > right when I go to start. The manual tells you how to start in > > cold or warm temp.(choke in for warm starts, out for cold) and to > > press and release the gas pedal 1X. The problem is if she stalls > > out on the first try, I'll be damned if she'll kick over on the > > second try!!! Of course now I'm probably looking at a new battery Ford V-8's are typically very cold blooded so require lots of gas to start usually. Take the air cleaner off and, while looking into the carb with choke open cycle the throttle likage all the way several times. If no fuel sprays into the venturis you need to rebuild the carb, especially the accellerator pump. Unless you have a Holley which basically meters fuel any time it wants to, not necessarily on demand and not necessarily into the engine you will need a good accellerator pump to start a ford v8. (my bronco doesn't need one because the Holley keeps the manifold full of gas even with the entgine off so it's always primed and ready to start :-)) If this is working well then try pumping the gas several times up to even 10 times (it's very hard to flood a cold ford) with choke pulled and once started, imediately push it in part way. How many pumps and how far to push the choke back in will be determined by trial and error. There is also a speed adjustment which works in conjunction with the choke linkage and a stepped cam on the passenger side of the carb. Once you get it running with the choke on you can adjust this screw till it will run at a fast idle sufficient to keep it running. You definitely need a good battery with old ford v-8's especially in cold weather Michigan Pot Hole Jumpin Bronco lover, -- Gary -- ------------------------------ Date: Fri, 09 Jan 1998 10:38:51 -0800 From: marko Subject: Re: 428 At 09:34 AM 1/9/98 -0500, you wrote: >Jeff: FOMOCO balanced the 410/428 differently from the remainder of >the FE family for a reason. I have no idea what that reason was, but I >would think with their resources of both talent and money, the reason >was a valid one. I would much rather balance the flywheel and the >vibration damper to the 428 crank than to balance the 428 crankshaft to >the 390 flywheel and vibration damper. All a matter of opinion I >suppose. This is exactly what the builder at "thunderbolt engines" told me, and he's been makin them longer n I've been alive. And ford balanced cjs and scjs all the same. Unless maybe you were running at Le Mans. marko ------------------------------ Date: Fri, 9 Jan 1998 12:58:23 +0000 From: "Gary, 78 BBB" Subject: Re: Intake manifold > From: "Art Lutz" > Subject: Intake manifold > Date: Fri, 9 Jan 1998 08:17:14 -0800 > manifold is sucking air? I tried running propane along the edge of > the manifold , but did not notice any change in the Rpms. I did > this at Idle, do I need to run the idle up for this to work. I was > also told WD-40 works in the same way, but I have not tried it yet. Use propane with caution, you could get a fire going under there :-) I'd say if you saw no rpm increase at idle then it's not leaking but one of the tubes or other vacuum controlled devices such as dist vac and brake booster could be as well as carb base gasket and throttle shafts where they go through the carb body so check them in the same manner. Idle is the best place to do it since it has the highest vacuum then and the rpm change can be seen and heard more easily. You can use carb cleaner or any flamable fuel with good volitility including "Hot Shot" but again be careful with the more volitile fuels and be careful not to get it near the air inlet to influence the test :-) Michigan Pot Hole Jumpin Bronco lover, -- Gary -- ------------------------------ Date: Fri, 9 Jan 1998 11:01:08 -0700 From: "Dave Resch" Subject: Re: '77 351M vacuum line routing >Date: Thu, 8 Jan 1998 22:14:23 -0600 >From: "Dale and Donna Carmine" >Subject: Re: '77 351M vacuum line routing >never know what that is anyway, (BTW, if I send away for the build >data based on the VIN does the data include the emission >calibration number???). Yo Dale: Probably not. The problem is that calibrations changed pretty regularly, often for reasons that had nothing to do w/ build data. Availability of other parts at the engine assembly line probably affected calibrations as much as anything else, "Oh no, we got two more crates of that EDB carburetor to use up... better get the engineers to give us another calibration to work w/ those things." Unless the calibration was related to a specific application that appeared as an option (i.e., "California emissions" or "high altitude"), there would probably be no clue on the build sheet. OTOH, absence of those "emissions options" in the build data would eliminate some calibration possibilities, assuming the calibrations shown in your book are labeled for "California" or "high altitude." Wish List: one thing that would be really handy is a cross reference that showed which carb numbers were used w/ which calibrations. That way, if you even had a just carb tag, you could track down a correct calibration (and vacuum configuration) for the engine. The only reliable way I know of to determine your engine's original calibration number is either from the emissions label or from the build tags on the engine. On late model engines (late '70s-on), those are stickers on the valve covers. On M-block engines, the engine build tag stickers should be on the ends of the valve covers on both sides. Both are on the same end of the valve cover, so if you don't see one on either side in the front, be sure to check the back of the engine. If the engine in your truck was replaced at some point, and the engine you have now was originally installed in a car, you wouldn't want to use the engine's original calibration anyway. Calibrations varied according to engine application (the vehicle it was installed in), and in a truck you'd want a truck calibration. Trucks generally had looser emissions requirements than cars in the '70s. >After doing all of the above I found a used chilton's emissions >manual that includes all of the vacuum circuits for '79 & '80. The Wow, that's a great find! (I was thrilled when I got my Ford '84 Emissions Diagnosis manual.) What's the full title and ISBN of that manual? Enquiring minds wanna know! >interesting thing is that there were 32 different emission calibrations >for the 351M in the '79 model year alone!!!! And looking at the The Ford emissions manual deals with that same quagmire by providing a generic troubleshooting guide that takes 200 pages or so of item-by-item tables and covers all vehicles (can you imagine the number of different calibrations?). There are general problem descriptions (like "Hard cold starting.") that give you a starting point, then after each item you test in a diagnostic procedure, you get referred to the next item based on the type of vehicle you're working on, the part number of the item you just checked, or even the presence or absence of another device in the system. Holy moly! >vacuum circuit diagrams many of these are not even remotely >similar. In other words, a diagram from another truck may be helpful >but don't follow it blindly unless the cal. number is the same. In fact, if you don't have a calibration number and you don't have a "California" or "High altitude" limitation, the best thing to do would be to follow the simplest diagram that used the components you have available on your engine. (For example, some of those diagrams may include a cruise control vacuum motor, and if you don't have cruise control, you can skip that one.) Then, even if it wasn't the original calibration, at least it would conform to a legitimate factory spec and probably be emissions legal anywhere except California. Dave R. (M-block devotee) ------------------------------ Date: Fri, 9 Jan 1998 11:51:14 -0700 From: "Dave Resch" Subject: Re: Cleveland heads on a 351M >Date: Thu, 8 Jan 1998 16:22:24 -0800 >From: "Bill Beyer" >Subject: Re: Cleavland heads on a 351M >I may have to be corrected on this and I'm sure that >Dave R. will, but you already have "Cleveland" heads >on your 351. The difference is that you have Yo Bill & Gregg: Bill knows me, eh? He's pretty much correct, too. There were actually 6 different Cleveland head designs, but there were two major types of Cleveland heads, 2V heads and 4V heads. The 2V heads had a bigger combustion chamber (76.2 cc) for lower compression, smaller intake/exhaust ports, and smaller diameter valves (2.041 intake/1.654 exhaust) to work w/ the 2V carb. The 4V heads had a smaller combustion chamber (62.8 cc early '70-'71 and 75.4 cc later '72-'73) for higher compression, larger intake/exhaust ports, and larger diameter valves (2.190 intake/1.710 exhaust) to work w/ the 4V carb. There were two different Cleveland intake manifolds, one for each of the two head types (port sizes). Cleveland intake manifolds will not fit on an M-block engine because the M-block's deck height is 1.091" taller than the Cleveland engine. You would have to substantially (expensively) modify either a Cleveland intake manifold or an M-block manifold to get it to work w/ the Cleveland 4V heads on an M-block engine. The M-block heads share most of the Cleveland 2V specs, except that the combustion chamber is a bit bigger at 78.4 cc. Early M-block heads (used only on the 400 engine from '71 to '74) were not set up for Thermactor and EGR systems, and depending on your local emissions laws, may not be legal on a post '74 vehicle. Otherwise, all M-block heads are the same. >the 2V heads with smaller intake passages vs. the 4V >heads which have much larger diameter passages. The >larger passages are actually better for high RPM than >for typical street driving. The smaller passages typically >give more low end torque which is better for the street. > IMHO I think you would be better served by having your >existing heads "cleaned up" by a shop that knows what >they're doing and putting an aftermarket manifold and >600 cfm 4V carb. I agree w/ Bill on all of this. There would be little, if any, worthwhile advantage to swapping in 2V Cleveland heads. The only improvement you could gain w/ the Cleveland heads would be the compression ratio (on paper, an increase from 8.0:1 to 8.2:1), but the magnitude of that change would probably not produce a noticeable performance improvement. Moreover, Cleveland heads would be pricey and they would not have the provisions for Thermactor and EGR ports, which you might need for emissions legality. Dave R. (M-block devotee) ------------------------------ Date: Fri, 09 Jan 1998 10:33:37 -0800 From: Kurt Albershardt Subject: Re: Dual Batteries I'd recommend looking into the battery combiners from West Marine as opposed to a battery isolator. An isolator is basically two big diodes, with a resultant 0.7 volt drop in charging voltage to each battery. You'll need to move the remote sense wire from the alternator to the side of the isolator near the battery to make the charging voltage correct, and some alternators don't have the sense wire externally available (although any good alternator rebuilder should be able to change that if you ask.) The battery combiners work using relays and a voltaqe sensor that disconnects one or both batteries and have essentially zero voltage drop. I've seen them work very well on campers and boats in applications where battery combiners had problems. At 08:55 PM 1/8/98 -0600, Mike Blazek wrote: > >A buddy of mine had a Camper Special with the dual battery setup, >and it was a factory install. The second battery was used to power >the camper; it was attached to an isolator that allowed the alternator >to charge both batteries, but a discharge on one doesn't affect the other. >The premise was that if you killed the camper battery, you could still get >home with no trouble.In fact, as of a few years ago, the auxillary battery >tray was still available from Ford. I bought one and used an aftermarket >isolator to power my ham gear. Look close at your fender apron and you'll >probably see the dimples that marked the mounting holes. > > Mike > > > > >Hogan, Tom wrote: > >> I've seen some 72-73 trucks with dual battery setups. Usually setup as >> a heavy duty camping rig. Is this a factory setup? I can't find any >> reference in the factory manuals. What is the advantage to two >> batteries? Is it worth the expense/headache? Was this something that >> had more value 20 years ago but less payoff now with advances in battery >> technology? >> >> Tom H >> San Francisco, California >> 76 F-150 SuperCab 390FE >> 96 Windstar 200 hp 3.8L (Wife's Hot Rod) ------------------------------ Date: Fri, 09 Jan 1998 11:37:18 -0800 From: danadeb Subject: Re: 1979 F250 rear hub assembly Gary, 78 BBB wrote: > Snip > I agree but the lock washer should guarantee that. If not and if > the tabs have all been used, get a new one. Before putting it back > on use a hammer to flatten out the washer and it's used tabs so the > outer nut will tighten properly as well. > Snip Has anyone tried using the "NyLock" type lock nut from Dana 70s. The Dana parts book shows only the one nut per side to keep the hub on. It seems that it would be a little easier to setup and you could always use the stock lock washer as a backup. Any thoughts?? Dana ------------------------------ Date: Fri, 09 Jan 1998 11:42:42 -0800 From: danadeb Subject: Re: Intake manifold Check around the carb flange gasket. Someone had an Edelbroke ( misspelled on purpose ) that the flange on the manifold was not thick enough for the stock carb to sit on. He had to make a spacer or something to fix it. Dana ------------------------------ Date: Fri, 9 Jan 1998 15:02:27 -0600 From: "JAMES MERLO" Subject: Re: Master cylinder retrofit/ Trans ID/ Tire size I was looking into the same issue for my 62 f350. The key issues are the front and rear wheel cylinder diameters and the master cylinder diameter you have along with the same pieces of info for the donor vehicle. This info for my vehicle was straight out of the ford service manual. A cooperative parts man helped me look through the catalogs for a truck with the same wheel cylinder diameter and master cylinder diameters(from a truck with front and rear drum brakes with the same size bores). I didn't want one from a disc/drum setup because of the need for the check valve for the drum brakes. I was only able to find a dual master cylinder with a power booster that had the closest wheel and master cylinder dimensions (I was able to find 1 1/4 rear wheel cylinders w/ front 1 1/8 wheel cylinders, but the master cylinder was 1 1/8 instead of 1 1/4). The smaller master cylinder would cause more pedal travel, but the booster compensates. The new master cylinder bolt pattern may not match the old master cylinder, so some adapting/plate may be needed for mating. Also look at the length of the rod that pushes into the master cylinder and compare to the new unit. Some of this can be taken care of in the pedal height adjustment. Just a note that the parts guy I deal with owns the store and is more than happy to help me out as much as he can so I can give him my money!!! Isn't it amazing. Jim - ---------- > From: steve.peters > To: fordtrucks61-79 > Subject: Master cylinder retrofit/ Trans ID/ Tire size > Date: Thursday, January 08, 1998 7:27 AM > > > Does anybody know if I can directly retrofit a dual master cylinder > from a '67 F100 (first year of dual) onto my '65 F100, without.... To access the rest of this feature you must be a logged in Registered User Of Ford Truck Enthusiasts
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