Anyone know of an easier way to get an engine to drop in??
What would happen...
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From: Harrison,Ar
What would happen...
What would be the result of putting a flywheel off of a 4.9L engine on to a 5.0L engine?? Just curious, because people have said that one must get a diff flywheel with this kind of swap, thanks Mark
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From: Concord, NC
You can change the flywheels with the engine still in, but you'd have to drop the tranny. So two hard things, I guess pick whichever's easiest for you. It's definitely a problem if they are balanced differently.
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From: Harrison,Ar
Is the clutch and pressure plate for a 4.9L engine compatable with a 5.0L? And would there be a difference in slave cylinders between a 4.9L-5.0L, and is there a diff between a slave cylinder of the years 92-94 for a 302? (all in an F-150 manual 4x4)
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From: Harrison,Ar
We put what we thought was the right flywheel (salvage yard) on and bolted on the the clutch and pressure plate from a diff 302 but it didn't work correctly. The clutch wouldn't disengage, we would turn the truck on and it would start to go forward, so we put the flywheel, clutch and pressure plate on from the 4.9L and everything seemed to work good so far... so any suggestions on what the problem was with the "other" clutch and pressure plate???? I need some help, lol, Thanks Mark
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From: Concord, NC
I really don't know what's up with that. Did you use the same slave cylinder? Does the 4.9 clutch bolt to the 302 flywheel? There's a possibility that you'll have to shim the slave cylinder to get it out far enough to release the clutch fully.
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From: Harrison,Ar
Not sure about the 4.9 clutch fitting the 302 flywheel, does anyone know if it will or not? Yes we did use the same slave cylinder, we went to auto zone and told them our set-up and they ended up giving us the same slave cylinder. What do you mean by "shim" the slave cylinder?
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From: Harrison,Ar
yes we did bleed the hydraulic lines. Do you think putting washers on there will work? and another problem might be the wiring harness, the wiring harness on the 302 is for a V8, but from the big plug to the rest of the truck (EEC aswell) is the same ol 4.9L harness, do you think it will work???
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From: Concord, NC
Don't know for sure about the shims. If there is an inspection cover for the clutch, I'd look to see if there is any free play area between the slave cylinder and the pressure plate. If there is, then shims could be the answer; if there's no slack, then there's a problem elsewhere. What year is your truck? I take it that the engine wiring harness is integrated into the under hood chassis harness? I would definitely double check the pinouts for the computers to make sure that the computer plug matches the V8 computer.
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From: Harrison,Ar
The truck is a 1992, the engine is from a 94. Also, I am not exactly sure where the EEC is located... I have been told behind the glove box, or under the left side kick panel, I looked and there is a black box for both, with wires running out of both of them, but the new computer I got was not black, but an aluminum color, and it was alot larger than the black ones.... Not sure about your harness question. I think they are integrated, not sure.
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From: Hendersonville, TN
I'm alsmost positive that the slave, clutch disc and pressure plate are the same for both. I researched it a while back while swapping trannies. All 92-96, I6 or V8 *should* be the same. There's a possiblity that you installed the clutch disc backwards. I did that once...ONCE! I've met a lot of other mechanics who have done it once as well. If the disc is in backwards it will do just that--not disengage and try to pull all the time. On my mazda 5 speed the slave bolted to the front of the tranny, so I wouldn't try to shim it. The way it's set up, the big spring holds the bearing against the pressure plate. This insures that the collapsed or "resting" position is extended as far as possible without pressure applied , so that it can stay filled with fluid in that position, and will start pushing against the pressure plate as soon as fluid starts moving the piston. If all is working properly and FULLY bled out, the disc in backwards is about all that could cause your problem. As to the harness, if it will plug in, then the harness itself should work OK, but you WILL have to find and change the ECM.
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From: Harrison,Ar
We thought we checked to see if the clutch disc was backwards, and it looked correct, I will check again. We bled it pretty good, so I thought it was completely bled out, who knows... Is it even possible to have everything bolt up with the clutch disc backwards? Could I use the clutch etc from the 4.9L to bolt up with the 302 flywheel? Do I need to get a new Engine control or Chassis control?