1992 Isuzu Pickup Logo
Posted on Jun 07, 2008

Manual clutch I purchased a 92 isuzu pickup, 2.3 liter, 5 speed, m75 trans., manual clutch. When I bought the truck you had to push the clutch through the floor to start and shift gears. This was after pulling the clutch cable through the firewall and applying vise grips to keep it there. I have installed new clutch, preasure plate, release bearing, and cable, only to have the exact same problem. This was a one owner truck and he told me that the clutch was never right after having the original replaced. I have triple checked the parts stores to see if I have been given the wrong kit. Now I have an 1 1\2'' shim at the firewall to take up cable slack, and the release bearing is hard against the plate fingers with the pedal at the top. This is the only way it will adjust and work. Can a shift fork wear out? Could the wrong shift fork cause this? My haynes manual seems to show two different forks. Each one pivots on opposite sides. What I don't know is whether this is the original fork or not. If this was changed along with the clutch they may have installed the wrong fork therefore the clutch was never right from the start. Fixing to drop the transmission again but would like some advice on what to be looking for.

  • frog gigger Feb 13, 2009

    Thanks for the reply. I fixed mine by adding 2 washers behind the ball that the fork pivots on. The ball had actually worn that much. It was either washers or build the ball back up heavy and smooth it. Luckily there was enough threads to add washers. In addition to that I found that the clutch pedal is pushed back up with a cylinder like a tool box lid. It was wore out. I took a spring and hooked it on the pedal and under the dash. Mine was just as you described yours. Try this when you need a pressure plate. Bet that is your problem also.

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  • Posted on Feb 11, 2009
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Sounds like the wrong pressure plate. I got a kit from Autozone and it was the wrong pressure plate. My old one was obviously thicker. With the new pressure plate, the shift fork was almost at full travel before any resistance. That's no good. I had to pull the transmisssion again and use my old pressure plate. Luckily, it was in good condition. Then, the clutch slack was easily adjusted and works great.

  • Anonymous Oct 15, 2017

    what suppose to be the right thickness of the pressure plate??? I'm having the same problem.
    please help.

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  • Posted on Dec 31, 2011
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You might have installed the wrong cable because the bearing should not be tight on the pressure plate until the clutch pedal is pushed.

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