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BroadHopper · 03-07-2012, 03:07 PM

When I am ready to 'turn the engine' I open the carb and leave it open. Not opening the carb whenever I do a compression check. So there is only one 'shot' of gas. It should be minute as far as damage.

You may be right as far as enough oil residue to keep the motor oiled when you are doing the compression check. As a shade tree mechanic I read in many articles about the damage of turning an engine over with no oil pressure. It is better to be safe.

If you have throttle body or direct fuel injection, when you turn over an engine there is fuel pressure as I can hear the fuel pump running. Does anyone know that the excess fuel will cause harm?

03-07-2012, 03:07 PM	#16
BroadHopper Senior Member Join Date: Oct 2004 Location: Laconia NH Posts: 5,582 Thanks: 3,223 Thanked 1,106 Times in 796 Posts	Wot When I am ready to 'turn the engine' I open the carb and leave it open. Not opening the carb whenever I do a compression check. So there is only one 'shot' of gas. It should be minute as far as damage. You may be right as far as enough oil residue to keep the motor oiled when you are doing the compression check. As a shade tree mechanic I read in many articles about the damage of turning an engine over with no oil pressure. It is better to be safe. If you have throttle body or direct fuel injection, when you turn over an engine there is fuel pressure as I can hear the fuel pump running. Does anyone know that the excess fuel will cause harm? __________________ Someday may never be an actual day.