Cascade Crew

blue89 · Posted: Tue Jul 28, 2009 12:43 pm Post subject: Holley bogging

I need help diagnosing this problem. The boat will run great on it's 2bbl 350cfm holley, but after 15 minutes of running great it will develope a problem. It will flood out at idle, bogs after 1/2 to 3/4 throttle, and will die with WOT stabs at idle. Sound like anything simple? I thought I fixed this once but this could be caused by something else. It has fresh fuel and I just cleaned the carb out completely. Any help would be greatly appreciated.

blue89 · Posted: Tue Jul 28, 2009 1:48 pm Post subject:

Does this sound like a torn power valve?

blue89 · Posted: Wed Jul 29, 2009 6:14 am Post subject:

I replaced the PV and it didn't change a thing. I'm thinking maybe it could be ignition related. It is consistently bad when it's warm. Maybe I have a coil going out. I've now cleaned this carb twice and it hasn't changed anything.

91RSVert · Posted: Thu Jul 30, 2009 8:08 am Post subject:

How old is the coil? And is it HEI, or Points?

blue89 · Posted: Fri Jul 31, 2009 12:47 pm Post subject:

No clue as to how old everything is. Probably 10 years at best. It also has a Pertronix's D-57-2 unit that completely replaces the points. Pretty neato since it fits under the cap. If the below doesn't fix anything, I'm buying a new one of those next.

The coil looked a little wet, like maybe it was leaking a little. It is mounted on it's side too. Then when I checked a plug I managed to pull the wire out of the boot Rolling Eyes

So I bought a new coil, new ballast resistor, new wires, and a new inline fuel filter. Cost me $45 after tax Very Happy

And last week I bought a new starter, $35 after tax. This is by far the cheapest engine I've ever worked on!

We'll see if the problem was in there somewhere.

chevymad · Posted: Sat Aug 01, 2009 9:51 am Post subject:

Leaking coils overheat faster. You probably found the problem. Seems like most of the new coils don't like being mounted sideways. At least I see alot more leaks now then I used to.

blue89 · Posted: Sat Aug 01, 2009 7:12 pm Post subject:

Ya, the coil was the problem. It just have been overheating and at WOT I was blowing out the flame. The plugs looked fine so I'm not replacing them.