Mercruiser 260 no spark

wellcraft-classic210

Master Chief Petty Officer
Joined
Sep 22, 2010
Messages
839
Did anyone remove or turn the distributor before your problem stated ?

Are you getting fuel to the cylinders ? -- to verify that --Try some starting fluid or dumping an ounce or so of fuel down the intake manifold.
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Don't use starting fluid. Quickest way to lift heads... (IE, blow head gaskets)
 

CaliFormula

Cadet
Joined
Jan 26, 2019
Messages
22
Update

thanks to everyone who read and contributed. Yes my distributor had been moved.
I got it started!
It was a combination of things that helped me get to an engine that worked.
One key thing I should have done early on was a compression test.
I did that and realized that my compression was low and that didn’t make sense. My valves were adjusted a little too tight. Solving for that made a big difference. The next thing that helped was making sure I had the distributor advanced enough to spark at the correct time. I guess putting my finger over a plug hole and looking at the spark wasn’t a very accurate way of judging that timing.
I really appreciate all of the input via this forum, I’m not sure if I would have figured it out if someone hadn’t told me to stop working on the sensor and coil and move on.
Trust the flowchart! I guess I really wanted it to be problem on the chart and when it wasn’t I got hung up.

I now have some extra spares that are good to have and hopefully never need like another Thunderbolt IV, ign sensors, coils.
Now to solve for a stuck oil filter that’s caving in as I try to remove it, time to search the threads.
 
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