DSJR wrote:Is the O (cushion ring) ring under the platter bearing race there and intact? Failure here will make the platter run too low and possibly catch something. Check motor pulley height and corresponding idler bracket height adjustment (all in the service manuals for these Autoslim derivatives).
A70BBen wrote:If the shaft is rotating in the chassis, STOP before it loosens any more.
amagasakii wrote:A70BBen wrote:If the shaft is rotating in the chassis, STOP before it loosens any more.
I assumed it was spinning on the shaft, but now I'm worried that's not the case. I was a bit perplexed when I pulled on the cam and it didn't budge, but the whole cam assembly seemed to have loosened. I'll check this out tonight. If the shaft is loose, is there a way to repair it?
DSJR wrote:As for the cushion O ring, check the diameter of the main bearing shaft for overall size (the ring is a fairly snug fit) and use what I think is a 1.6mm diameter ring. Any thicker and the platter will run too high - there must be a small 1mm - 2mm or so free vertical play if the platter is lifted against its fixing clip - I haven't measured it but it's around this much I think.
I *think* there may have been another larger diameter but still 1.6mm cross section O ring around the bottom of the platter hub directly under the gear teeth which is the sludge you found - there is in the directly related SP25 III - and this serves to quieten the mechanism down when cycling (there's a pic of one in my 'gallery')..
A70BBen wrote:If the shaft is loose in the chassis, a prior "servicer" did it by forcing it.
A70BBen wrote:You will still need to separate the cam gear from the shaft, first. You could see if puddling some solder on top of the shaft to increase heat transfer from your soldering iron will Help, or use a mini-torch. The SL65B does not have plastic parts in the cam that could be damaged by heat, unlike the SL95, etc.
A70BBen wrote:It should be OK. A mini-torch, which has a small, pointed flame, would be better, I think.
Whatever you use, be careful and when you try to lift the cam gear out, do it with a rag so you don't burn your fingers!