runs a bit then dies
 

Got my run and die issue figured out I think, when the coil gets hot it gives up, got omc with distributorless ignition. 4.3 cobra. Thinking its time for delco voyager set up. Thoughts?

Re: runs a bit then dies
 

Distributor-less Ignition on a 92 4.3?:confused:

Re: runs a bit then dies
 

Yes. Must be a 4.3 H.O. has a marine Holley 4bbl and all. Kinda like a king cobra I guess

Re: runs a bit then dies
 

Never heard of them , as far as I know never made em. Got pics?

Re: runs a bit then dies
 

Not at the moment, the coil pack and module are mounted on the port side exhaust manifold. It uses a flywheel sensor for trigger.

Re: runs a bit then dies
 

This is a proprietary system for omc cobra.

Re: runs a bit then dies
 

I'll be damn!:eek_animated:
Just looked it up @ dougrussell.com.
I thought you was nuts.:rolling_laugh:
I'd definitely toss it and go with something else.
I am considering the DUI Marine 4.3 Setup for my merc 4.3 , but kinda pricey.

Re: runs a bit then dies
 

The delco voyager is $269 complete, plug wires and all. That's what I'm gonna get.

Re: runs a bit then dies
 

I would think that would be a more reliable system for marine service than the original OMC setup for sure.:wink_thumbup:

Re: runs a bit then dies
 

Yup I think so.

Re: runs a bit then dies
 

MECHANICAL FUEL PUMP!!!!!!

I think I have your fix. Had a 1987 Chaparral with an little 4 cylinder OMC that did the same thing, crank it driveway, run great on lake, but after it got good and warmed up it would bog down as if it's starving for fuel and eventually would die. Couldn't crank back up until the motor cooled off. Had numerous boat mechanics tell me it's either 1- anti siphon valve located near tank was sticking, 2- dirty carb, 3- spark plugs/wires.....they had no idea. I rebuilt carb---> no change. Did tune up to include plugs, wires, distributor cap and plug---> no change. Anti-siphon valve was clean---> no change.

It was the fuel pump. OMC motor had a mechanical fuel pump and when it got to operating temps, sludge inside would cause a blockage of fuel to carb. Replaced fuel pump with ease and boat ran like a champ!!!

Re: runs a bit then dies
 

His boat has electric fuel pump.

Re: runs a bit then dies
 

I've been thinking about fuel pump, however my new ignition made huge improvement.but now it will stall sometimes when at wot trying to plane out. Holeshot is awful also.