Posted by PJH on December 24, 2012 at 21:18:15 from (50.40.254.219):
In Reply to: JD 620 gas in oil posted by Ed The Wine Farmer on December 24, 2012 at 18:21:58:
Ed, I recently went thru that with my 630. It's like the others said - with the engine off, and the fuel valve to the carb closed, the only way for gas to get in the oil is thru a bad diaphram in the auto fuel shut-off. I got 30 years out of the first diaphram that I changed, but only three years out of the second one. It may be the modern fuel, or mebbe the material is not as good as it used to be, but I'm done fooling with the auto shut-off. I plugged the oil lines and now I turn the fuel on and off manually. You can make a thin wedge to hold the knurled knob down on the top of the shutoff (for fuel to flow), or learn to turn the knurled knob a quarter turn left while pushing it down to make fuel flow. And to sum it up - if you DON'T have an auto shut-off, disregard all I've said, ha.
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