Automatic Trans Converter Endplay

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340inabbody

340inabbody

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I have a few questions as automatics are new to me. Is there a Thrust Bearing in a 904 to Crank assembly akin to the pilot thrust bushing or roller bearing as in a manual crank? I never saw one so that might be a simple answer.

My real question is what is the assembly procedure for transmission mating to the engine with respect to endplay clearance of the converter? Do you guys just slap it (trans to motor) together and hope for the best or do you some how measure and shim the flexplate and TC to ensure the trans housing when mounted does not push on the crank forward and wipe out the main thrust bearing inside the engine.?.
 
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Sort of. You have to make sure torque convertor is properly seated in transmission. Once trans is installed, you should be able to spin torque convertor around to line it up with the mating holes in flex plate. Start all the bolts and thread them in all the way but a little loose. Once all bolts are started then tighten them to spec.
 
Tooljunkie said:
Sort of. You have to make sure torque convertor is properly seated in transmission. Once trans is installed, you should be able to spin torque convertor around to line it up with the mating holes in flex plate. Start all the bolts and thread them in all the way but a little loose. Once all bolts are started then tighten them to spec.
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Thanks so there should be ample clearance on the nose of the converter in the crank to not bind and hence not be be concerned about the stack up? Meaning the final check the TC should spin freely when done?
 
Concern might be only for the clearance between the converter and flexplate being excessive. If it 's over 1/8" , shim it with washers until it's 1/8". This is with the crank all the way back in the thrust bearing.
 
The snub on torque convertor will seat in end of crank when bolts are tight. “Register” if i recall the term correctly.
 
There were 2 different sizes of crank registers and torque converter noses. You probably do have all later larger type parts but... Just slap it in there doesn't always work. Good luck to all.
 
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