Re: 1999 Volvo Penta 4.3 Sputters, Stalls, Dies
Just a quick FYI to stay topical. Dropped the boat off for what I think is the 11th time since late-Feb (this my second shop of the season), not all for the problem discussed here, but most of them. I think this is trip is #6 for the stutter and stall.
It's been a slog.
Had a trailer wheel fly off last month. Just got off the freeway doing 60. Good thing I was in a parking lot doing 5 or I could have made the news. (And yes, gentlemen, I grease the hub frequently.) I started the season with the glove box deciding to unseat itself. The compartment just fell down. How often does that happen?
It's comical. Almost. At the pub, I take a lot of hits, greetings usually start with hey, how's your boat, followed by some wise crack about bridges and swamp land, or hey buy my boat . . . it doesn't run either, but at least I can tell you why.
It'll probably be at least a week before I get any news about what the current fix attempt is for this elusive sputter-die trouble. He said he's going to put it on the lake again (third time) for first-hand effect.
The fail sequence has changed since he last had it on the water. The original fail sequence started at about 45 minutes (could almost time a clock by it it was so predictable) at about ever shortening 20 second intervals, miss . . . miss miss . . . miss miss miss . . . miss miss miss miss miss, stall. I got 90 minutes lake time last time, 4000 rpm falling to 2000 rpm like right now. So what he's been trying this summer has had some influence, at least on how it fails.
I passed off all your suggestions, plus some others I rooted out from other sites (plugged tank vent, failing alternator, fuel line too close to the block vaporizing the gas, yada yada). He may have already been through these. I don't know.
But I'll bet that tach cable suggestion comes as a surprise!
I gave him the addr to this thread. I don't know if he'll sign on. I expect by now that he's likely taking the failure to diagnose and fix this personally and may just insist upon muscling through this on a solo.
But soon as I have news, I'll be back.
Thanks for all the attention.