Thread: Perentie gearbox issues

Sounds like you might need a new clutch Toby. What you have described is the symptoms of a slipping clutch. As it is hydraulic there is no adjustment on the pushrod but check the pedal and master cylinder to make sure it is not sticking in the half disengaged position. If all is ok there then it is a gearbox out job to fit a new clutch. Not a nice thing to happen for Christmas

Here's a part number for a HD clutch assembly for the Isuzu (Exedy KLR28003-1AX). This is one that will handle a turbo if you decide to fit one later down the track.

Thanks Brian

I did think it might be clutch, but there was no smell at all, so I kind of dismissed the idea, I have had a new master cylinder put in only a few months ago.......so will check all of that out otherwise looks like I will be buying myself a nice new clutch christmas present...
Thanks again Brian, happy new year to you

Originally Posted by rocksteadi

Thanks Brian

I did think it might be clutch, but there was no smell at all, so I kind of dismissed the idea, I have had a new master cylinder put in only a few months ago.......so will check all of that out otherwise looks like I will be buying myself a nice new clutch christmas present...
Thanks again Brian, happy new year to you

There is a possibility the master cylinder might be the problem. It has an adjustment on the pushrod that goes into it. Has the pedal operation been any different after you had it fitted. The pedal would feel different to normal if it is sticking.

Just to add to what Brian has said, if the clutch feels firm right from the top of the pedal stroke then its not right.
There needs to be some free play at the top of the pedal travel or the clutch won't release properly, and eventually will start slipping.

Steve

Check for oil on the clutch. Remove the wading plug on the bottom of the flywheel housing and see if there is any oil comes out. If there is significant amount of oil comes out, this will be your problem, and you will need to identify where the oil is ccccoming from - most likely the oil pump on the front of the gearbox or the crankshaft back seal (or both). You will need to fix this while the box is out to replace the clutch.

John

Originally Posted by steveG

Just to add to what Brian has said, if the clutch feels firm right from the top of the pedal stroke then its not right.
There needs to be some free play at the top of the pedal travel or the clutch won't release properly, and eventually will start slipping.

Steve

If this is the case, it wouldn't be the first 110 of those recently sold with incorrectly adjusted freeplay.

If insufficient freeplay is the problem, adjustment to the manual specs is straighforward, IME making it a two person job (one on the pedal,one with the spanners) simplifies it further.

Who's the guy that rebuilds the box for $900