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| | | | Joined: Mar 2019 Posts: 95 'Bolter | | 'Bolter Joined: Mar 2019 Posts: 95 | I need to change out the fuel pump on a 235 engine and have an old sealed unit replacement pump that smells really varnished. Before installing for a test I was wondering if there is a good product to soak it in since it doesn't look like I can disassemble it.
1953 3100 Pu
| | | | | Joined: May 2015 Posts: 11,001 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,001 | Lacquer thinner will dissolve gasoline varnish, but don't know what it might do to the diaphragm.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | | | | Joined: Feb 2004 Posts: 29,746 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,746 | Gasoline is a good solvent- - - -just recirculate it through the pump from a separate container while you run the engine on a gravity feed tank for a few minutes.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Mar 2010 Posts: 10,271 Renaissance Man | | Renaissance Man Joined: Mar 2010 Posts: 10,271 | 10% ethanol gasoline is an excellent varnish remover.
It effectively dissolves 70 years worth of varnish clinging to the inside of original gas tanks in pterry short order, causing the varnish to collect down stream into the fuel pump, carburetor and valve guides, gumming everything up.
1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission
| | | | | Joined: Dec 2018 Posts: 2,450 'Bolter | | 'Bolter Joined: Dec 2018 Posts: 2,450 | 52 carl From what i'm understanding the varnish and gum are about to wipe out the spare push rods and rocker arms,fortunately you can sttill get valves exhaust at least. My last gum episode was in about 1969 on a customer engine swap. Looks like curtains for fuel pumps too,foreign junk has taken over,saw my pile of carburetors waiting for rebuilder core values to climb. | | |
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