G'day guys,
The M76 5-speed gearbox that I'm running in my 6-cylinder VK daily has started making horrible grinding noises whenever I start the car up from cold in neutral - sort of sounds like a synchro trying to mesh. So I flick the car off again for a couple of seconds and start it again, and it runs okay - except while I'm driving there is a subtle sound like something loose or lightly trying to mesh when it shouldn't while driving.
I've done about 90,000kms now since putting this gearbox in and really flogged it the whole time, so truthfully it has been great, but I can't really afford to go spending for something better at the moment.
I'm thinking of pulling it out to rebuild it.
If anyone has had experience with these gearboxes, can they please suggest firstly what might be the cause of the issues described? Obviously I will only find out what is truly wrong by pulling it apart and inspecting but if anyone could even provide pointers as far as disassembly, bits which should be looked at, and reassembly go that would be great.
Yes, it does have plenty of oil in it. A few pointers would be really appreciated before I pull it out and dismantle it.