mightyohm
Donation Time
Has anyone else seen this? After shutting the car off, I can hear the fuel boiling in the carb, and if I take off the air filter housing I can see some of it percolating into the intake.
It's well documented on the Opel GT and BMW 2002 forums but I haven't seen anyone on the Sunbeam forums talking about it. Apparently the ethanol in the gas makes the problem worse. It's pretty much impossible to find ethanol-free gas up here.
I think our car has had this issue for a long time but I never paid much attention to it. It may be worse on the new motor, which has an intake without a water passage (though I suspect folks will disagree, and it's not clear to me in the hot water would primarily heat the intake or primarily cool it from the hot headers below).
Some of the boiling fuel winds up in the intake, which seems like a "bad thing" for the rings.
It's well documented on the Opel GT and BMW 2002 forums but I haven't seen anyone on the Sunbeam forums talking about it. Apparently the ethanol in the gas makes the problem worse. It's pretty much impossible to find ethanol-free gas up here.
I think our car has had this issue for a long time but I never paid much attention to it. It may be worse on the new motor, which has an intake without a water passage (though I suspect folks will disagree, and it's not clear to me in the hot water would primarily heat the intake or primarily cool it from the hot headers below).
Some of the boiling fuel winds up in the intake, which seems like a "bad thing" for the rings.