Can anyone help me with a 1971 240Z gearbox problem?
Posted: Fri Mar 01, 2019 9:01 pm
Hi Guys,
After restoring my car from radiator to differential including the engine I am still having problems. My NZ new car has a 5 speed gearbox and it started to make a bad noise on overrun in 2nd gear. I took it to a gearbox specialist who diagnosed too much lash. The box was reassembled with a bearing and gasket kit. When it was handed over to me the box was very stiff. I had to literally push and pull the lever to change gears. That is, it wasn't "buttery" like it should have been. I took it back under warranty and they diagnosed that it had Porsche type synchromesh. The owner of the business told me that they had reversed the synchro's on re-assembly, i.e. flipped them, as they are reversible. He claims that by doing this I now have in effect new synchros and stiffness is normal. Apparently this is a normal procedure. I don't doubt his honesty but I would just like to know if anyone has had experience with this issue.
After restoring my car from radiator to differential including the engine I am still having problems. My NZ new car has a 5 speed gearbox and it started to make a bad noise on overrun in 2nd gear. I took it to a gearbox specialist who diagnosed too much lash. The box was reassembled with a bearing and gasket kit. When it was handed over to me the box was very stiff. I had to literally push and pull the lever to change gears. That is, it wasn't "buttery" like it should have been. I took it back under warranty and they diagnosed that it had Porsche type synchromesh. The owner of the business told me that they had reversed the synchro's on re-assembly, i.e. flipped them, as they are reversible. He claims that by doing this I now have in effect new synchros and stiffness is normal. Apparently this is a normal procedure. I don't doubt his honesty but I would just like to know if anyone has had experience with this issue.