1988 4cyl MT2/Isuzu 5 speed: New Clutch Starting to Slip After ~1500 miles (Page 3/3)
fierofool SEP 29, 06:14 PM
If you end up having to replace the clutch, get yourself a disk and pressure plate for a V6. Don't the clutch kit, but just the disk and pressure plate without a throwout bearing. It will bolt right up and the disk has a larger friction surface. The pushrod that came with your new slave should be used. Try grasping the slave pushrod and pushing it back into the slave. You should be able to. If something is amiss, it could be bottomed out at the bleeder end of the slave and not fully releasing the clutch.

Something that will keep the pedal from coming up to the proper level is that the master cylinder pushrod has the curl turned downward instead of upward. However, that would cause the clutch to have difficulty releasing, not make it slip.
ag9123 OCT 02, 08:04 PM
In my experience, clutch slippage is always more noticeable in the higher gears. It takes a lot of torque to accelerate in the higher gears especially when you're in a high gear/low speed/ high throttle opening situation. The culprit is usually weak/inadequate spring pressure, oil contamination on the clutch surface, too little freeplay causing the clutch to be partially disengaged all the time ( which leads to clutch surface wear).

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1984 Indy Fiero

Dennis LaGrua OCT 04, 10:38 PM

quote
Originally posted by fieroguru:


Not going to find one of those on an 88 4 cly.



Forgot, yes that engine is DIS but it also has a rear main oil seal that can leak oil on the flyweel.

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