I have no spark on my 898 mercruiser engine. I checked the engine coil and it seems to be within specs. This leaves the distributor. It is a points distributor. Does anyone know how to adjust it or test if it works?
Is it possible to "upgrade" to a normal distributor?
well the first thing to do if its points is replace them if they look burn't on the contact face. if you look at them and the show carbon spots at all they are junk. secondly the condensor, without it the coil can't throw a spark because it can't save the high energy charge to the points if its open in the circit.
dwell is the word your looking for tuning the points. dwell is ussally around 25-30 degrees (need a dwell meter to read it) and or (.017 - .019) point gap full open.
Thanks Yetti, I just replaced the points, condensor and rotor. The old ones were well used. Specs call for .016-.019 gap on the points. I believe I have about 0.017, as best as I can tell when the point gap is fully open (lobe at max). No dwell meter
After all this, still no spark!
I'm wondering if I should try the coil. The primary resistance is within specs but it's at the high end.
Also, not sure what's it called, attached to the right of the carb there is a part with two wires. It gets really hot by just having a battery connected???
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