Generator Briggs Vanguard blowing oil

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Generator Briggs Vanguard blowing oil

Postby spencerdiesel » Tue Dec 26, 2017 11:35 am

WellI dug the 7000 watt devilbiss out because Im leaving for Georgia tomorrow on a hunting trip, and want my fiancee to have it working in case she loses power while I'm gone. We used it for 6 hours solid just 3 weeks ago in our first power outage of the year, and it ran great.

Upon discovery of a decent gas leak under the thing this morning I also found out the hard way the cylinders were full of gas :? I took the plugs out and spun the thing for a solid 20 seconds then put the plugs back in. It started fine, but immediately started billowing white smoke from the exhaust, and puking oil out the exhaust.

What do yall think is causing oil to get into the exhaust?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

H1C/18

Fuel: THD 6x10 VCO sticks, THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 2 turns in, timing to the head/ >1/4”
Muffler delete

Minimum 60% WMO full time since Sep. 2018
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Re: Generator Briggs Vanguard blowing oil

Postby PToombs » Tue Dec 26, 2017 12:23 pm

It may just be an oil fuel mix that filled the exhaust from being overfull. Or if it has a crankcase vent system it may be coming from there also.
pete

Just enough power to break everything behind the crankshaft.
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Re: Generator Briggs Vanguard blowing oil

Postby spencerdiesel » Tue Dec 26, 2017 12:37 pm

thanks Pete. It does have a crank vent that reroutes to the intake, it was kind of a pain getting the manifold loose to get the muffler off but ill do it again and run it a few seconds without the muffler, so as not to just dump more oil into it.

Something odd I noticed the second time I had the plugs out, the top of one piston was spotless, I mean not the first spec of carbon deposits. The other piston was covered in deposits.
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

H1C/18

Fuel: THD 6x10 VCO sticks, THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 2 turns in, timing to the head/ >1/4”
Muffler delete

Minimum 60% WMO full time since Sep. 2018
spencerdiesel
14mm rotor
 
Posts: 1073
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
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Re: Generator Briggs Vanguard blowing oil

Postby spencerdiesel » Tue Dec 26, 2017 5:53 pm

Pete you called it.......it was way over full of oil/gas. Changed it with 10w40 and it's all downhill from here :D
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

H1C/18

Fuel: THD 6x10 VCO sticks, THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw 2 turns in, timing to the head/ >1/4”
Muffler delete

Minimum 60% WMO full time since Sep. 2018
spencerdiesel
14mm rotor
 
Posts: 1073
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
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Re: Generator Briggs Vanguard blowing oil

Postby PToombs » Tue Dec 26, 2017 7:12 pm

I done seened some things onced or twiced. ;)
:lol:
Glad you got it going. It sucks to be without power. Power was out here for 8 or 9 hours once several years ago so I bought a generator. It's never been out for more than a couple hours since. Just when I get thinking I need to get the generator out, the power comes back on. :roll:
pete

Just enough power to break everything behind the crankshaft.
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PToombs
14mm rotor
 
Posts: 11287
Joined: Sun Jan 07, 2007 6:13 pm
Location: Syracuse NY. Snow central!
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