Essential when rebuilding your engine to ensure that the mainshaft bevel has the correct backlash and position in relation to the lower vertical bevel gear, these mainshaft shims fit between the timing side main bearing and the mainshaft bevel gear.
This shim is used once the crankshaft has been shimmed and you are fitting the lower bevel gears.
This is for a complete set of 5 shims in the following sizes:
- 0.5mm = 0.021" or 21 thou (for some reason the actual thickness is 0.53mm which = 21 thou)
- 0.3mm = 0.012" or 12 thou
- 0.2mm = 0.008" or 8 thou
- 0.1mm = 0.004" or 4 thou
- 0.05mm = 0.002" or 2 thou
It is common practice to measure float with no shims fitted, then add one or multiple shims to reach the desired final endfloat, measuring each time shims are added or subtracted
Bagged in DuckOil to protect from corrosion