11-02-2015, 07:17 AM
I have removed and cleaned sticking idle air controllers. They said you can't but WD-40 did a great job.
I don't know how changing the idle to 800 RPM would eliminate knock. That's a function of timing and is not adjustable on these engines. If you could adjust the timing, increasing (BTDC) it would increase the idle speed but worsen a knocking problem.
Some engines still have an idle stop adjustment and some throttle controls have an adjustment at the helm end. You could try looking there.
Capt. George
I don't know how changing the idle to 800 RPM would eliminate knock. That's a function of timing and is not adjustable on these engines. If you could adjust the timing, increasing (BTDC) it would increase the idle speed but worsen a knocking problem.
Some engines still have an idle stop adjustment and some throttle controls have an adjustment at the helm end. You could try looking there.
Capt. George
