Bent Flywheel/Flexplate - JeepForum.com

 
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post #1 of 6 Old 05-09-2005, 04:33 PM Thread Starter
4x4cherokee6
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Bent Flywheel/Flexplate

So I've been having timing problems with my 93 cherokee 4x4 auto, I replaced the engine with a 96, same wiring and manifolds from the 93. Where the transmission connects to the engine, it jumps when the car is start and when it runs. I think this is because of a bent flex plate/flywheel. Before I go spend $450 on it, do you think this is the problem of the transmission jumping?

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post #2 of 6 Old 05-09-2005, 05:01 PM
Roodki
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My friend has a brand new flexplate with all the bolts and stuff for his 98 XJ he'd sell for like $50, if it'll work on a 96 engine.

You could take off the cover for it and look to see if all the bolts are tight. That same friend had a rattling problem from that area, and a mechanic told him his flexplate was probably cracked. He went in to look at it and found that there was a bolt on the plate that loosened itself to the point of almost falling off. With that tightened there were no more rattles.

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post #3 of 6 Old 05-09-2005, 05:17 PM
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That flexplate is still for sale with bolts 50 bucks !!!

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post #4 of 6 Old 05-09-2005, 06:16 PM Thread Starter
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I'm not interested in buying a new one but thanks for the offer. Well its rattling down there and the timings way off.
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post #5 of 6 Old 05-09-2005, 07:06 PM
coppertop71
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Check to make sure your CPS sensor is tight.

Whats the story about the fly wheel? Is it from the 96 or the 93 and at any time was it removed? It has a dowel hole to to line up with the crank but I wonder if its possible to have it flipped and still have the tranny mount up to it.

How about the distributor where did it come from? There may be differences from a 96 ot 93. Some say the engine will run but run bad if its one tooth off. I experimented with that and took it one tooth back and forward. It would only idle and soon as I hit the throttle it would die. So maybe check the timing. The manuals dont show this procedure, but if I remember right put the #1 cyl at TDC if the rotor isnt on the #1 plug wire the remove the distributor and put the roter at the 3 oclock position then as it slides back in it will should be inline with the #1 wire on the cap. The slot on the oil pump may need to be moved to get it back in.

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post #6 of 6 Old 05-09-2005, 07:48 PM Thread Starter
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All the timing is perfect as its going to get, I've had about 3 mechanics over to look at that. Everything on the car is from the 93 except for the block.
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