Originally posted by Zizu
Fact is we did not get any top end with shims on.But when we took all out the engine ran faster and screams like mad.
You took out two shims from your engine? one brass(0.2mm) and one aluminum(0.3mm)?
when the compression is too big...
1) glow plug filament was pushed then broken.(those )
2) Engine singing due to the igniting timing too early.
what pipe are you using?