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Old 07-06-2020, 02:39 PM   #7
BRENT in 10-uh-C
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Join Date: May 2010
Location: Eastern Tennessee
Posts: 9,468
Default Re: Fuel shut off valve

The underlying issue with the reason the valves fails is because grit & debris from inside the tank flows thru the valve, and when the Gas Valve stem is turned, it scores the housing and/or stem which causes the valve to leak. This rust & grit will ruin even a stainless steel ball valve.

Once the tank issue has been corrected, you can use a 7 tapered reamer to resurface the A-9190 Gas Valve Body, and then mount the A-9192 Gas Valve into a lathe and make a skim cut on the taper. It doesn't take much to remove the scoring and make a difference. Then use fine valve grinding compound to polish the two mating surfaces and it will be good as new.

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Attached Images
File Type: jpg A-9190-C Gas Valve Body.jpg (28.3 KB, 67 views)
File Type: jpg A-9192 Gas Valve 2.jpg (47.8 KB, 50 views)
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