PM 300 - dark and wet plug - help!
08-10-2003, 06:56 AM
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PM 300 - dark and wet plug - help!
Hi!
Number 5 runs dark and wet. The engine stumbles at idle now and then, but runs ok at cruise.
We have cleaned and blueprinted the injector (s), so that should be fine. Swopped the plug with another one, and the dark one went tan, and the tan went dark.
So something is wrong with the number 5. Tomorrow we will do a compression and leakdown test. Maybe its the ignition. Hope so!
I am confused as the engine runs ok at cruise (4.000 - 5.000 rpms), but stumbles at idle.
Any ideas??
Cheeers, Toffen G
Number 5 runs dark and wet. The engine stumbles at idle now and then, but runs ok at cruise.
We have cleaned and blueprinted the injector (s), so that should be fine. Swopped the plug with another one, and the dark one went tan, and the tan went dark.
So something is wrong with the number 5. Tomorrow we will do a compression and leakdown test. Maybe its the ignition. Hope so!
I am confused as the engine runs ok at cruise (4.000 - 5.000 rpms), but stumbles at idle.
Any ideas??
Cheeers, Toffen G
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