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The Hydraulic throwout bearing in #6434 just died. Died as in
"hhhmmmmm....whats that little puddle under the car". And then the cluch
pedal goes to the floor, The reservoir is empty. I refill the reservoir,
watch it bubble up for a minute or so. Pump up the clutch pedal and I can
shift gears, but not for long. And now the puddle becomes a puddle faster.
So now I have to pull the trans to replace the PPC hydraulic throwout
bearing.
I have a few questions: Is it true that Dennis will replace this
bearing free of charge? And when it comes to actually pulling the trans, I
see that the bearing's hydraulic fluid line runs out the bellhousing and
around the starter and up towards the front of the car. I have not climbed
under the car yet to check this. BUT, there does not appear to be enough
slack in this hydraulic line to allow me to pull the trans and and attached
bellhousing back away from the engine. Does anyone know if there is
coupling in this line that will allow me to disconnect the line in order to
remove the trans/bellhousing? Funny, when I bought the car back in
February, it had this little weep of an oil leak, it wouldn't even drip. Now
it's a puddle on the floor....you just never know.
So what do you guys think about hydraulic throwout bearings????


Thanks for the help.............Doug.H
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If the throwout asembly is not set up with free-running clearace per the mfgr, the piston assembly will bottom when the engine/transaxle heats up. This causes the annular piston to spin which quickly destroys the quad-ring seal. A quad-ring seals both sides of a bore. The inner diameter of the assembly is where the ZF input shaft passes through. Quad-rings will NOT seal rotary motion, so if the piston spins, the ring rapidly wears, then fails. There is an AN-fitting screwed into the stock hard line under the engine so the flex line can be unscrewedthere.
Jack..........thanks for getting back to me. I believe that this bearing has lasted since at least 1995, the car's clock has approx. 22000 miles on it. So I guess it lasted a pretty long time. I will crawl under it this weekend and see if that AN fitting connection that you mentioned is on the hydraulic line. If so then things get better, if not I will have to ask around and see if Dennis now has this connection setup. Thanks again..........Doug.H #6434
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