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Re: [GMCnet] BF (4.0) Dipstick blow-out fix [message #302877 is a reply to message #302863] Thu, 30 June 2016 11:16 Go to previous messageGo to previous message
Bullitthead is currently offline  Bullitthead   United States
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Registered: November 2013
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Soak the rubber (not really rubber)seal on the dipstick in a small can of Walmart carb cleaner or lacquer thinner for a couple of hours to swell it up. It will be the right size when it is very difficult to put back in the tube without any lube. Then dry it off with air and douse it liberally with silicone spray (or better maybe soak it in brake fluid for a few hours) and re-insert it into the tube. Should be a tight fit that will last until the seal shrinks back in a year or so, depending on use of the Onan and whether there is alcohol in its fuel supply. Don't soak it too long in the cleaner/thinner or it will swell way too big and be too soft until you put it under a hot light to shrink it back down (BTDT) Smile .

Terry Kelpien ASE Master Technician 73 Glacier 260 Smithfield, Va.
 
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