Mastermind
Work Saw Specialist
Something is going on......but I don't think the piston is causing it. What it is I can't tell just by looking at the pics though.
So what is safe compression for these and is it the same at 0 and 5000 footSomething is going on......but I don't think the piston is causing it. What it is I can't tell just by looking at the pics though.
Hell 225 - 240 would be fine on pump gas.
I'm really surprised by that, especially in an engine that can't retard the timing.Hell 225 - 240 would be fine on pump gas.
???I'm really surprised by that, especially in an engine that can't retard the timing.
You're much taller than I thought ...[emoji200]Good to know.
I had 197psi at 4700' elevation.
Hell 225 - 240 would be fine on pump gas.
I'll fan the flames for fun, all other things accounted for...
Looks like the piston is sloppy at the top and tight at the bottom, get the piston good and toasty as well as heat sink the cylinder and stuff starts to move. Put a crappy finished piston in the mix and there could be some chipping or flaking, would not take much to abrade the surfaces.
Piston skirt flare, it is either to tight or to loose. To tight can be checked by reusing the same piston to loose cost money.
Looks like there is a lot of extra metal on the cylinder insert intake side, that seems odd.
Pretty good endorsement for the mix though.
You're much taller than I thought ...[emoji200]
Pedal Tractor Loggin'
I'm really surprised by that, especially in an engine that can't retard the timing.
The grass tickles there nutz ? [emoji200]A midget like yourself probably says that about most people.
@TermiteBuffet You know why midgets always laugh when they run?
No knock sensor
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