Check this out. GREAT site with tons of info.
outdoorpowerinfo.com
500 series push mower, gas in the oil
- Thread starter Nessuno
- Start date
It's okay. I was too. I thought the spring was a second tube for the primer. Oops.
That is an excellent breakdown of that type of carb. I bookmarked it in my browser. That link alone, makes this whole thread worth the time to read. I learned quite a bit about how the diaphragm, intake tube, needle valve, all work in conjunction; also learned a lot about the needle valve itself. Excellent photos and breakdowns.Check this out. GREAT site with tons of info.
Disassembly, Repair of Briggs Tank-mounted Vacu-jet Automatic Choke Carburetor
Beamster
Active Member
I've had motorcycles that got the oil flooded with gas when the fuel shutoffs were left on. People think that the carb floats will prevent that but sooner or later that is not the case. Vintage floats were not compatible with current pump gas and the eventually leak and don't float, letting fuel run. In the bikes some floats were remanufactured of a material not sensitive to the ethonol and were aptly named "stay up floats". Being that the oil is diluted when it happens it would be bad to run it like that.
Gord Baker
Well-Known Member
If you are sure that gasoline is getting into the Crankcase, perhaps someone put it in accidentally.
Look for another problem although it seems you have carefully checked them all. 30 Std oil.
Look for another problem although it seems you have carefully checked them all. 30 Std oil.
VRR.DYNDNS>BIZ
Well-Known Member
ANYONE WHO FIXIES ENGIINES FOR A LIVING WILL TELL YOU THE CARB FLOAT IS NOT WORKING PROPERLY. OVER FULL WITH GAS WILL DILUTE THE OIL, DIRTY AIR FILTER WILL DILUTE THE OIL. i WILL NOT SPEND TIME TELLING YOU HOW, JUST KNOW IT DOES.
Hey loud mouth,
Might want to read the entire post before spouting off. His carb is below. His carb doesn't have a float.
Thank you very much. I've been drinking a little bit today watching my fantasy football team go down the tubes and I was about to jump down the throats of a couple of posters who didn't read that I don't have a gravity fed system into a float bowl. LOL
We take care of our own on here LOL.