t20racerman Posted September 27, 2016 Report Share Posted September 27, 2016 Hi folks - Adrian again here with my basket case Ossa! So I went to put the clutch mechanism onto the shaft. Behind the clutch are a thrust washer and a spacer according to my Clymer manual. As always with a basket case like this - I don't have these parts, or if I do - I don't recognise them amongst boxes of irrelevant non-Ossa parts, machine tool bits and bobs, random stuff etc... I have a thrust washer that fits on the shaft nicely, but how thick should it be, and what about the outside diameter? I have no idea as to the size of the spacer, but I assume it is wide enough to ensure that the inner sleeve of the needle roller bearing is just proud of the clutch basket - so that the clutch inner pushes against this, not against the basket? I've found a mild steel spacer that seems to do the job, but is mild steel up to the job? It is a little loose on the shaft too. Is this the correct spacer? The part numbers are given as: 111.076 - Thrust washer and 111.077 - Spacer I have a lathe if I need to make something up (and a very good toolmaker friend!) Any info whatsoever gratefully received. Thanks Adrian Quote Link to comment Share on other sites More sharing options...
woody Posted September 27, 2016 Report Share Posted September 27, 2016 The thrust washer is approx 2mm in thickness. It's a snug fit with the ID on the shaft, the OD is 30mm. The spacer is also a snug fit on the shaft and 5mm - 6mm in length (digital vernier packed up) The OD is 22mm, slightly thicker than the sleeve which is 20mm Quote Link to comment Share on other sites More sharing options...
t20racerman Posted September 28, 2016 Author Report Share Posted September 28, 2016 The thrust washer is approx 2mm in thickness. It's a snug fit with the ID on the shaft, the OD is 30mm. The spacer is also a snug fit on the shaft and 5mm - 6mm in length (digital vernier packed up) The OD is 22mm, slightly thicker than the sleeve which is 20mm Thank you, thank you, thank you!! This restoration (ie money-pit that is driving me mad) would be even more difficult without the excellent help offered on this forum. :-) Right, off to fit the clutch and tighten the front sprocket nut.... I'll no doubt be back shortly with my next question..... :-( Thanks Adrian 1 Quote Link to comment Share on other sites More sharing options...
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