Quote:
Originally Posted by Winnipesaukee
So we are in the process of dewinterizing our 4.3L Merc carburated engine. It will not start. I'm pretty good with car engines, how different can this thing be?
Here's what I've got so far.
-12 volts cranking power.
-It has spark
-Fresh fuel in the tank
-Engine turns, but only cranks, doesn't seem like fuel is igniting.
-Plugs are black/covered in oil (fogging oil?)
-Spraying either in the carb does nothing
I think it is a fuel issue. I don't exactly know how to check the fuel filter/system for a clog without dumping gas into the bilge.
Any ideas? Help!!
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While I'd guess you're correct re:fuel when you say you spray the carbs and nothing happens it then looks like a spark issue. Some starting fluid into the carbs should get you at least a cough or 2 when it ignites. Still if you looked and saw a spark at a plug .... ????
FWIW : I don't think the kill switch, or neutral safety switch, being activated would allow the engine to even crank, let alone make a spark so my take is that (those) aren't the problem.