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Re: help! nc30 filling inlet with fuel
Posted: Wed Jul 29, 2015 12:39 am
by vfrman
aky141 wrote:Been fine for the last few weeks, no petrol in oil, was needles and floats, remaining petrol fumes in engine were being funneled through breathers, making it run rich and made the throttle weird. Let run for 10 min with breathers off and was fine after that.
If you had enough fuel in a cylinder to want it to hydro lock, then fuel leaked past your piston rings and got into your oil. Change it. Or don't...they are only bearings and easy and cheap to replace.
Re: help! nc30 filling inlet with fuel
Posted: Wed Jul 29, 2015 7:15 pm
by RickOliver
Yeah, and if it follows the usual pattern and locks a big end so fast that it snaps the conrod, a bit of duct tape will probably fix that...
Re: help! nc30 filling inlet with fuel
Posted: Thu Jul 30, 2015 8:17 am
by aky141
Oil and filter was drained and replaced with the needles. It's fine
Re: help! nc30 filling inlet with fuel
Posted: Fri Jul 31, 2015 11:30 am
by Neosophist
aky141 wrote:Been fine for the last few weeks, no petrol in oil, was needles and floats, remaining petrol fumes in engine were being funneled through breathers, making it run rich and made the throttle weird. Let run for 10 min with breathers off and was fine after that.
this sounds very very sketchy, especially if you changed the oil.
perhaps you had a leaking float that handt quiet sealed and it sealed itself up, not uncommon on carb rebuilds.
wouldnt have thought any residual fumes would make it run rich.