New flywheel?
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From: Graham, WA
Shoot. Now I'm getting a little PO'd. From what I understand from this thread I should be getting the engine running and worrying about this flywheel later. If I'm being taken for a run I would hate to be on the other end of the stick when I find out oneminizut was gypped.
Thanks
Thanks
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Rgr that John, get 'er running first to help with the (future) diagnosis of the drive train. This is all good advice here, esp getting a repair manual for that year of truck. Browse the Hayne's compared to the Chilton's a few minutes and pick the best one for that particular truck.
And don't worry too much about getting gypped, it's a used truck and getting one is just like horses and heavy equipment -- buyer beware and stuff happens.
And don't worry too much about getting gypped, it's a used truck and getting one is just like horses and heavy equipment -- buyer beware and stuff happens.
Last edited by RexB; Jun 12, 2007 at 09:03 AM.
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From: Graham, WA
Ok, so I called the seller yesterday and he said the reason to change the flywheel was that every part of the truck, including the current flywheel is an 83' . But... he rebuilt and dropped in an 88' engine. Said the flywheels didn't match up right or something. Any thoughts on that?
I got a Haynes manual for 1980 through 86's (maybe it was 78 through 86) so that will help. I went out and pulled alot of parts from my other truck and dropped them in the 4x4 yesterday since that's the one that's closer to running. I found I still have plenty to do before I go worrying about another flywheel.
I got a Haynes manual for 1980 through 86's (maybe it was 78 through 86) so that will help. I went out and pulled alot of parts from my other truck and dropped them in the 4x4 yesterday since that's the one that's closer to running. I found I still have plenty to do before I go worrying about another flywheel.
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From: Virginia
I am thinking the 88 had a one piece rear main seal, and the 83 didn't. But I didn't know it would even bolt up, unless he rigged it somehow. Do you know what engine was in it before? An 83 but was it a six, a 302, a 351w?
P.S. I just looked up a 83 f150 with a 351w, and a 88 f150 with a 351w, and they take the same flywheel. If he has a problem, I bet the truck had a 300 or a 302 in it before.
Another update; I just looked up a 83 f150 with a 302, and it takes a different flywheel than a 351w. But a 83 f150 with a 302, and a 88 f150 with a 302 both take the same flywheel.
P.S. I just looked up a 83 f150 with a 351w, and a 88 f150 with a 351w, and they take the same flywheel. If he has a problem, I bet the truck had a 300 or a 302 in it before.
Another update; I just looked up a 83 f150 with a 302, and it takes a different flywheel than a 351w. But a 83 f150 with a 302, and a 88 f150 with a 302 both take the same flywheel.
Last edited by Franklin2; Jun 12, 2007 at 04:26 PM.
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From: fargo, nd
the older 302s have a 28 oz imbalance, the newer ones have a 50oz, so the early 302's flywheel will fit on a 351, but not the late 302's. all 351w are 28 oz imbalance. all will technically bolt up. some 351's have different tooth counts for different transmissions... theres a 157 tooth and a 164 tooth... if you try to use the wrong tooth count the starter wont hit the flywheel to turn the engine over (needing a 164 and having a 157) or itll just ram the starter into the side of the flywheel (needing a 157 and having a 164).
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From: Graham, WA
My update:
I called again and I was told that the current flywheel was the wrong weight? Something about one being a 54 ounce (I think the current one is 54 ounce). He said the truck would run with it but eventually it would break teeth or something. I hardly understand the ounce weight when the one I have to replace it with weighs a ton. The engine that was previously in it was an 83' California 351w ( with the EEC) and he put an 88' 351w (regular?) in it. The flywheel is the original from the 83' but I guess the torque or something might bust it eventually?
Sorry I don't have great info. The guy is going through finals at school now and is short on time so getting good information is like pulling teeth at this point.
I called again and I was told that the current flywheel was the wrong weight? Something about one being a 54 ounce (I think the current one is 54 ounce). He said the truck would run with it but eventually it would break teeth or something. I hardly understand the ounce weight when the one I have to replace it with weighs a ton. The engine that was previously in it was an 83' California 351w ( with the EEC) and he put an 88' 351w (regular?) in it. The flywheel is the original from the 83' but I guess the torque or something might bust it eventually?
Sorry I don't have great info. The guy is going through finals at school now and is short on time so getting good information is like pulling teeth at this point.
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From: fargo, nd
it must have had a 302 in it to have the 50 oz imbalance. the imbalance is a counterweight welded on to the flywheel/flexplate... if you dont have the right balance nothing will really happen to the flywheel itself, but itll toast out your bearings in a hurry... and if its that out of balance then it could even possibly break the crankshaft.
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From: Graham, WA
That's no good. I'd be at the auto wrecking yard every other weekend. I really need to be able to pull a four horse trailer and obviously it's no good to break down on the side of the road with the boys in back.
Side note--
Just found out tonight that it has fuel lines disconnected or missing from underneath. I thought I was sooo close.
Side note--
Just found out tonight that it has fuel lines disconnected or missing from underneath. I thought I was sooo close.
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From: Simi Valley, CA
Originally Posted by oneminizut
My update:
I called again and I was told that the current flywheel was the wrong weight? Something about one being a 54 ounce (I think the current one is 54 ounce). He said the truck would run with it but eventually it would break teeth or something. I hardly understand the ounce weight when the one I have to replace it with weighs a ton.
The engine that was previously in it was an 83' California 351w ARE YOU SURE??( with the EEC) and he put an 88' 351w (regular?) in it. The flywheel is the original from the 83' but I guess the torque or something might bust it eventually?
I called again and I was told that the current flywheel was the wrong weight? Something about one being a 54 ounce (I think the current one is 54 ounce). He said the truck would run with it but eventually it would break teeth or something. I hardly understand the ounce weight when the one I have to replace it with weighs a ton.
The engine that was previously in it was an 83' California 351w ARE YOU SURE??( with the EEC) and he put an 88' 351w (regular?) in it. The flywheel is the original from the 83' but I guess the torque or something might bust it eventually?
Did the PO change the computer when he changed the engine? Computers are year and engine specific.
Last edited by NumberDummy; Jun 13, 2007 at 02:34 AM.
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From: Graham, WA
Well, he doesn't have the computer controlling the engine anymore. All wires were cut. He made a new wiring harness. No vacuum advance. The new distributor... still in the box is one of those MSD types with the module also. I know NumberDummy, that you would like me to have a superior ignition system like you PM'd me once. Just can't afford it right now. As far as being sure about the previous engine... I just go by what he tells me and my wife trusts him so I guess I have to. I will look for the 8th digit, the one part I don't have for the interior is the dash. Frack. Thanks though.
Dumb question... would the digit you were looking for be on the block as well? Probably not since you want the 83' numbers right?
Dumb question... would the digit you were looking for be on the block as well? Probably not since you want the 83' numbers right?
Last edited by oneminizut; Jun 13, 2007 at 03:16 AM.
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From: fargo, nd
this swap would have been much easier if he would have just kept the thing carbed, and just swapped intake and ignition systems, kept the carb sending unit... everything is simpler and easier with a carb 
Last edited by darrin1999; Jun 13, 2007 at 07:02 AM.
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From: Graham, WA
It is, I guess my post was misleading. It has a Holley on it. Wasn't ever fuel injected. The original factory motor I suppose had the computer control and a distributor without vacuum advance, duraspark III ignition system with a brown grommet module. I believe that's California setup. He removed the computer from the equation and rewired it for duraspark II setup with a blue grommet module. Now I have some "high performance" MSD ignition system and the Holley is still on the manifold. Think everything under the hood is ready to go except the new module and distributor. Also I understand that there is a missing fuel line or two under the truck, no big deal I guess. That should be an easy fix. Probably should knock on wood after that, like my head.
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