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New (again) used to be over in the diesel section several years ago. I just picked up 67' F100 with the 240ci and a 4 speed manual.
I am in the process of doing a tune up and some maintenance and notice that it appears the vacuum advance is broken. It will engage but then immediatly starts to recede, will not hold. Is that a sign of it being worn out or am I missing something?
That brings me to my next question. I was going to replace it as the distributor seems fine, but can't find just it alone to buy. The number on my distributor is C8AF 12127 A (Autolite) and it has two ports.
The numbers from my carb, metal tab says DOPF F, but then stamped into the body it reads DOPF 9510 J.
It is my understanding that the distributor and carb need to "match". I went to the local auto store to just buy an entire new distributor and they were no help.
I will try and post some pictures, hopefully they work. Any help or suggestions would be greatly appreciated.
Yep, the amazing load-o-crapic distributor. Sure sounds like the vacuum advance is lunched. They don't work all that great when they do, is my understanding. It's a vacuum only type distributor, no mechanical advance or centrifugal weights inside.
Yes it's true, you heard right, must be used with the correct carburetor, as the advance uses two different sources or types of engine vacuum. It won't run correctly otherwise. A conventional mechanical + vacuum advance type distributor could be fitted and would likely run much better, but probably takes a little finagling or modification. Not too big of a deal, but I don't know if there's any drop in replacement. Somebody will know.
The dual unit has an advance and a retard function. One uses the ported vacuum (read that as delayed vacuum). You can replace the dual unit with a single unit and it will run fine as long as you hook it up to the correct port. Vacuum advances are available as a component. I put one on mine. They are adjustable with an Allen wrench through the vacuum inlet. Instructions with the part. If you go single, cap off the other port. No magic here. The retarding function is for emissions. That's it. A 67 would not have that distributor.
Vac advance for a 67: 1967 FORD F-100 3.9L 240cid L6 Distributor Vacuum Advance | RockAuto
Whole dist for a 67: 1967 FORD F-100 3.9L 240cid L6 Distributor | RockAuto
Are you sure you have a 67 and not a 68? Some states used the year sold for model year with regard to trucks. Causes much confusion. So if your truck was made in the beginning of the 68 model year (August of 67+) it might be called a 67 on the state paper work, but in reality be a 68.
Yep, the amazing load-o-crapic distributor. Sure sounds like the vacuum advance is lunched. They don't work all that great when they do, is my understanding. It's a vacuum only type distributor, no mechanical advance or centrifugal weights inside.
Yes it's true, you heard right, must be used with the correct carburetor, as the advance uses two different sources or types of engine vacuum. It won't run correctly otherwise. A conventional mechanical + vacuum advance type distributor could be fitted and would likely run much better, but probably takes a little finagling or modification. Not too big of a deal, but I don't know if there's any drop in replacement. Somebody will know.
It sounds to me like he needs to get a 2bbl intake and new dizzy.
I have the same troubles here in Texas as far as being able to buy JUST a vacuum advance module.
Paperwork indicates a 67 and I also used the VIN decoder over on fordification and it traces back to Jan. 67 as my corresponding numbers are ARA72.
I ran across that same replacement vacuum, my concern being is that on mine the arm is a female whereas that replacement one is a male. Inside my distributor there is a pin that the arm hole sits over, if the replacement is exactly like the picture not sure how it would go in and function? When I got the truck none of the lines were hooked up so not sure where the other end is supposed to trace to. If I am able to just replace the vacuum with a single does the line go from the vacuum to the port (that was also unused) on the left side of the carb?
Sorry for probably such newbie questions but all help is greatly appreciated!
Last edited by Boostingaz; Jun 30, 2017 at 10:59 AM.
Reason: Original post did not work.
No problem. That's why forums exist. Your distributor is a 68 unit. C8 in the beginning of the part number on the side indicates that. Could be someone swapped the whole motor at some point, or just the dizzy. In any case, you are probably better off getting a rebuilt unit that is correct for your year. A wore out distributor is a source of problems. How many miles on the truck?
Also, D0PF on the carb means it is the generic replacement carb. No biggie, it works as well as the original.
I am going to go out on a limb and say my cap and rotor that I just replaced, will probably not transfer over? The new one should come with points at least I will not have to do that again correct?
If I can and do use the A-1 CARDONE 302609 next question would be do I have the correct carb and does the vacuum plug into the port I highlighted previous?
The truck only has 34k miles on it, the title reads Box A miles and the owner indicated the same anyways. The truck ran/runs great, however it failed emissions due to the HC numbers being to high, hence the parts search.
New (again) used to be over in the diesel section several years ago. I just picked up '67 F100 (2WD or 4WD) with the 240ci and a 4 speed manual.
ARA72 does not decode to January 1967, only A72 does. 2WD:F10ARA72XXX = F10 F100 2WD; A = 240 1V I-6; R = San Jose CA Assembly Plant; A72XXX = January 1967 // 4WD: F11
I am in the process of doing a tune up and some maintenance and notice that it appears the vacuum advance (D2PZ-12370-A) is broken.
It will engage but then immediatly starts to recede, will not hold. Is that a sign of it being worn out or am I missing something?
That brings me to my next question. I was going to replace it as the distributor seems fine, but can't find just it alone to buy (see below).
The ID number on my distributor is C8AF 12127 A (Autolite) and it has two ports.
The numbers from my carb, carb ID tag says D0PF-F .. but then stamped into the body it reads D0PF-9510-J= Ford part number:D0PZ-9510-H FoMoCo 1970/72 "service part replacement" carburetor for the original 1967/69 1100 series Auto-Lite carbs.
Take the Motorcraft part number to NAPA or an independent auto parts store, they can cross it over to the brands they sell.
Genuine Ford parts:
HAVEN FORD in Haven KS has 1 = 620-465-2252.
BELL MCCALL CO. in Hamilton MT has 1 = 406-363-2011.
BARRY MOTOR CO. in Danbury IA has 1 = 712-883-2421.
CARPENTER NOS OBSOLETE PARTS in Concord NC has 19 = 800-476-9653.
------------------------------------------------------------------------------------- D0PZ-9A586-A .. Carburetor Kit (Motorcraft CT-223) / Use with D0PZ-9510-H and etc. carbs / Obsolete
So now knowing that even though it is a newer motor, since I have the carb previously mentioned and my current vacuum advance is broken, should I still put in the A-1 CARDONE 302609. Its only $50 from local auto store so if it is a correct match it would be the cheapest option to get the truck up and running for now.
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