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1941 Oil pump rebuild? #1119401 08/16/2015 8:36 PM
Joined: Jun 2014 Posts: 128 Massachusetts T TK421 Shop Shark
TK421 Shop Shark T Joined: Jun 2014 Posts: 128 Massachusetts	I took the oil pan off my 41 235. Lots of gritty sludge in the pan. Is that normal? My second question is, since I have the pan off should I clean out the oil pump? Is it a tough task? Anything I should know? Thanks Andy Sometimes you're the window Sometimes you're the bug

Re: 1941 Oil pump rebuild? TK421 #1119407 08/16/2015 8:57 PM
Joined: Sep 2001 Posts: 29,269 Jarvisburg, NC, USA tclederman Bubba - Curmudgeon
tclederman Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 Jarvisburg, NC, USA	It is very common. Non-detergent oil was standard/recommended until the mid-50s. It did not hold particles/etc in suspension. So, when at rest, particles dropped out of the oil into the pan. Clean it out carefully. I'd either leave the oil pump alone, or install a new one. Maybe someone (Pre '68 Dave) knows where to find a replacement or a rebuild kit? It looks like the same oil pump was used from 40-52 on all 216/235 engines? SEALED POWER 2244140 - about $130 at Rockauto.com ? Tim 1954Advance-Design.com 1954 3106 Carryall Suburban 1954 3104 5-window pickup w/Hydra-Matic The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.

Re: 1941 Oil pump rebuild? TK421 #1119517 08/17/2015 4:29 PM
Joined: Jan 2001 Posts: 5,337 Snohomish,WA,USA P Pre '68 Dave 'Bolter
Pre '68 Dave 'Bolter P Joined: Jan 2001 Posts: 5,337 Snohomish,WA,USA	I would disassemble the pump and inspect it. Most pumps will have some scoring on the gears but that is okay. The thing to watch for is loosness in the main shaft. I also like to look at the relief valve spring, they can have a fair amount of wear on them from rubbing against the housing. New pumps are available, even on ebay. See the USA in your vintage Chevrolet! My Blog

Re: 1941 Oil pump rebuild? TK421 #1119566 08/17/2015 11:00 PM
Joined: Dec 2008 Posts: 1,922 Long Island P panic 'Bolter
panic 'Bolter P Joined: Dec 2008 Posts: 1,922 Long Island	Check the end play of the gear in the body. .002-.0025" perfect, .003" acceptable, more than that mill the body.

Re: 1941 Oil pump rebuild? TK421 #1119567 08/17/2015 11:17 PM
Joined: Jul 2008 Posts: 1,321 Georgia H Harold46 'Bolter
Harold46 'Bolter H Joined: Jul 2008 Posts: 1,321 Georgia	Here is a new pump or a rebuild kit (middle of page). Your choice. Harold Oil Pump Last edited by Harold46; 08/17/2015 11:19 PM. Harold Is a restoration ever finished?

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