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ponkusjr
11-19-2004, 04:57 PM
can anyone tell me how to tell if the thrust bearings are worn.

BoostinA4
11-20-2004, 01:13 AM
throwout bearings??

Daft
11-20-2004, 06:30 AM
No, thrust bearings. The thrust bearings are what the turbo's thrust shaft rides on to spin. If oil cokes up in the oil lines or bearings, lubrication of the bearing ceases and shaft wear will occur. This is how a turbo fails.

To check the turbo's thust shaft for wear, remove the inlet pipe from the compressor's mouth. Try to move the compressor wheel side to side and check for excessive play. The oil that lubricates the shaft is a cushion so, there should be a very small amount of movement. 1mm would be ok. Far more than that is excessive.

Excessive shaft wear will also be accompanied by buring oil during WOT and very unusual turbo sounds during WOT. Many people say that the turbo becomes very shrill and high pitched like a dentist's drill.

DarkkstaR
11-20-2004, 08:38 AM
Mine are ****ing DEAD :)

BoostinA4
11-20-2004, 04:47 PM
time for k04