Rotated the engine withhout a couple of shims in place

Hmm. This shim removal tool has left alot of tiny aluminium shavings in the oil. How bad is this? I am fishing around with a magnet in the oil to try and collect as much as possible.

Also, the valve clearance is 0.06mm for almost all valves. I understand 0.13mm is the optimal clearance. So it looks like I will have to replace almost all shims as most are 2.90mm thick. These shims are quite expensive and often comes in increments of 0.05mm. So shall i go for a clearance of 0.11mm or 0.16mm?

If you're picking it out with a magnet it's not aluminum and might be coming from somewhere else.

You can find finer increments of shims if needed but I didn't find it necessary. I got as many of mine as close as possible playing shim musical chairs, and then ordered exactly what I needed to get the others in spec. I followed the advice here that .003" is way too tight and aimed for the recommended .005" (.13mm). Given the choice I went with .006" over .004" (one .05mm shim size) and counted .007" as too loose.
 
If you're picking it out with a magnet it's not aluminum and might be coming from somewhere else.

You can find finer increments of shims if needed but I didn't find it necessary. I got as many of mine as close as possible playing shim musical chairs, and then ordered exactly what I needed to get the others in spec. I followed the advice here that .003" is way too tight and aimed for the recommended .005" (.13mm). Given the choice I went with .006" over .004" (one .05mm shim size) and counted .007" as too loose.
The tool itself is magnetic, so it must be some kind of alloy.

Ok, I just placed an order from a seller located in Italy, in total 11 shims at 4 euro/each. I went for the shims that would give a clearance of 0,11-0,12mm. I also got rear wheel rubber dampers for an older cb750k rear wheel from an Italian seller. Oh my, the spares for these older bikes are expensive…
 
Back
Top