AMC clutch query
Posted: Thu Jan 02, 2020 9:49 am
Hi
Happy New Year to you all.
A friend of mine has recently bought a 1960 650 twin,alternator model. It started and ran fine, with good compression, but had 2 problems. Firstly, it was pumping oil into the chaincase, gradually filling it. The gauze/felt filter at the front of the engine was filthy, and I've got him to wash it out in petrol, and dry it thoroughly. The ball bearing is moving freely on its spring.Could this be the problem, or should we look elsewhere?
Secondly, the clutch had rotational play on the gearbox shaft. Initially I thought it might be destroyed shock absorber rubbers, but on removing the clutch retaining nut, the clutch cane straight off with no need of the puller. It seems very slack on the splines; the gearbox shaft looks fine, but there is evidence of wear in the clutch. I've never taken one apart before, other than clutch plates: do you think a new centre web should fix it, renewing the rubbers at the same time?
The owner of the bike is new to British classics, and I've told him he needs to join this club, which he will. But I'm trying to give him a head start in getting it fixed ready for the Spring.
Thanks,
Malcolm
Happy New Year to you all.
A friend of mine has recently bought a 1960 650 twin,alternator model. It started and ran fine, with good compression, but had 2 problems. Firstly, it was pumping oil into the chaincase, gradually filling it. The gauze/felt filter at the front of the engine was filthy, and I've got him to wash it out in petrol, and dry it thoroughly. The ball bearing is moving freely on its spring.Could this be the problem, or should we look elsewhere?
Secondly, the clutch had rotational play on the gearbox shaft. Initially I thought it might be destroyed shock absorber rubbers, but on removing the clutch retaining nut, the clutch cane straight off with no need of the puller. It seems very slack on the splines; the gearbox shaft looks fine, but there is evidence of wear in the clutch. I've never taken one apart before, other than clutch plates: do you think a new centre web should fix it, renewing the rubbers at the same time?
The owner of the bike is new to British classics, and I've told him he needs to join this club, which he will. But I'm trying to give him a head start in getting it fixed ready for the Spring.
Thanks,
Malcolm