Just stripped and cleaned a spare primary chain tensioner ready for my clutch job.
On re-assembly, I looked at the Commander parts diagram. It's always seemed odd to me that the upper slipper has an ally plug under the nylon plunger and the lower slipper just a nylon plunger, visually the wrong way up. The plungers are clearly shaped as a spring guide/support.
After some measurements, it's clear that if the lower one is built up exactly the same as the upper one, ie, an ally plug in first and the nylon plunger in with its wide boss against the plug, ( same as the top one ) the resulting spring lengths and pre-load is exactly the same as if done per the drawing.
but surely, the bottom plunger will act as the spring guide better, the same way the top is ?
I can't see any reason the bottom one can't be like the top one and have assembled it accordingly.
Any reasons against ?
Regards all,
Terry.