Vibrating when first start to move. told it's the flex plate. This started after I had my rear main bearing leak fixed and transmission filter replaced on my 2003 Jeep wrangler. Could the machanic at
Vibrating when first start to move. Been told it is my flex plate. This started after I had my rear main bearing leak fixed and transmission filter replaced could the machanic at the dealer caused this when he did this repair.
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it is hard to diagnose with so many listed faults
first up slipping when hot indicates a weak pressure plate tension but the reasons o slipping when hot may start at a bad clutch master cylinder not fully allowing the brake fluid back to the reservoir ( blocked compensating port)
that creates a catch 22 situation where the pressure place is not fully engaged and so it slips marginally and that builds up friction heat which in tern cause what is called brake fade . In other words the friction surface ( clutch plate facing) cannot absorb any more heat and so it slips
moving on , the slippage can be from excessive oil on the linings but if that is the case it will slip or grab ( shudder) on take off
The oil will most likely be from from a front input shaft seal and that may be from failing oil seal or overfull transmission or blocked breather for the transmission
seal generally will produce a oil mist in the bell housing after time but adding to your statement of hard to get/change gears I suspect that the oil leak could be from a failing front shaft bearing of the transmission not allowing the seal to work properly
To sum up , the transmission will have to come out and the clutch kit and throwout bearing replaced
from the slippage I would recommend that the flywheel clutch face be machine to remove high hot spots and that combination will give a smooth clutch operation at this point if there are signs of a rear main seal leaking , replace it before the flywheel is refitted
remove the extension housing that the throw bearing slides on and the seal is in that housing
that front bearing can be checked also and if in doubt , overhaul the bearings in the transmission
(visible damage to the bearing cage will be evident here indicating a failing bearing)
when finished replace the clutch master cylinder if more than 5 years old since replacement
sorry not good news and it will amount to a costly exercise but there are no short cuts to a good reliable jib
Oil leaking "in" your valve cover? Where is the oil at/coming from? And, to answar your question, rear main seal is a real job! Requires removing transmission, flex plate/fly wheel! It is the crank shaft seal, on the "rear" of the engine!
if it is a one piece lip seal , the transmission has to come out and the flywheel/ flex plate removed
if it is a two piece seal fitted in the rear main bearing cap the box is out as well as the sump and probably the crank as well
get a workshop manual for the job
you will know what has to be done when you buy the seal
the leak is probably a separate issue from the noise. is the leak very bad? can you tell if it's engine oil or transmission lube/fluid? most likely the rear main bearing seal needs replacing. the noise is most likely the clutch release bearing. you should replace all components of the clutch assembly which include; clutch plate, pressure plate, release bearing and piolot bearing. also have the fly wheel resurfaced. while the trans is out, you can check the rear main seal and the trans input shaft seal and replace accordingly.
While you have the transmission removed be sure to replace the rear main bearing seal.On a1982 you will have to remove the oil pan to replace the seal,It has a two piece seal.After removal of the oil pan carefully remove the back main bearing cap,you will have to use a straight pick to roll the top seal out of the block.Lubricate the deal with oil before you install it.Be sure to get a new oil pan gasket with your other parts.Make sure you torque your main bearing cap to manufacturer's specifications.
If you can estimate the labor rate in your are you should be able to get a good idea of the cost.
Part OEM Part Price Crankshaft Main Bearing Seal Rear Main Seal 12554314 $37.30
Crankshaft Main Bearing Seal Replace Rear Main Seal With Auto Trans 8.7 Hrs Note With Skid Plate, Add 0.4 hrs With Manual Trans Hydramatic MG5/MY2/M50 6.5 hrs New Venture MW2 5.2 hrs Note With Skid Plate, 0.4 hrs
First, the easiest way IS to remove the transmission, it is a one piece seal, if it were a 2 piece, you would need to remove the oil pan and Rear Main Bearing Cap which in my opinion is alot tougher. When installing the new seal, make sure the the end of the crankshaft is clean of debris, lube the seal before sliding it over the end of the crankshaft to ease installation and some like to apply a thin coat of high temp sealant to the outside surface of the new seal to ensure no leakage. When reinstalling the flywheel/flex plate, proper torque is key because you dont want it working loose and having to remove the transmission again.
hi never heard a manuall transmission flwheel being called a flex plate i can however see why they may call a auto transmission flywheel being called that as they are a thin metal plate and these crack and do make a clicking noise so you need to ask him exatly what he means yates210456