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TH400 leaking from front
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pauls2
New User
| Posts: 2
| Joined: 04/09
Posted: 04/17/09
07:38 PM
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I have a turbo 400 that leaks bad at high rpm It seems to be from torgue converter seal. does not leak under normal driving. I found flex plate was warped. installed a new one, new converter seal, installed trans and drove it hard for a mile or so, pulled it up on ramps looked under and found trans fluid dripping from front end of trans. frame rails and starter nose coated with fluid. I feel the trans has to much pressure on fluid at converter seal. thought about pulling the pump and changing front bushing when trans was removed but desided to just change the seal and install which did not work. need a transmission expert for some advise. thanks.
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LANDTAHOE
New User
| Posts: 4
| Joined: 04/09
Posted: 04/20/09
01:06 PM
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DID YOU CHECK THE SNOUT ON THE TORQUE CONVERTER TO SEE IF THE PUMP SEAL
HAS WORN A GROOVE IN IT? ANOTHER THING THAT I HAVE SEEN IS IN THE WELD
OF THE TORQUE CONVERTER COULD HAVE HAD A BAD WELD AND IT HAS FINNALLY
BROKE THE WELD AND THAT UNDER NORMAL DRIVEN CONDITIONS THERE IS NOT
A TREMENDOUS AMOUNT OF FORCE TO OPEN THE CRACK.
WHEN IT IS BEING DRIVEN HAD THE AMOUNT OF FORCE INSIDE THE CONVERTER
WILL EXPAND AND OPEN UP THE CRACK.
JUST SOMETHING I'VE SEEN
GOOD LUCK
LANDTAHOE
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pauls2
New User
| Posts: 2
| Joined: 04/09
Posted: 04/21/09
06:20 PM
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thanks for the the input. I looked under the vehicle today while it was running and it makes a line on the floor of fluid from the flex plate. that makes me think it is from the converter. thanks again for the help. when i get around to getting it tore apart again i think i'll do a dye penetrant check on the converter.
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