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#548698 06/22/2009 2:52 AM
Joined: May 2006
Posts: 92
W
Shop Shark
Shop Shark
W Offline
Joined: May 2006
Posts: 92
I bought a 58 235 engine. I took it apart today, it turns over by hand easily, I adjusted the rockers and cleaned the oil pump screen. I found some sludge in the oil pan, and it sticks to a magnet. The engine did not have an oil filter. What would the sludge be from? Just improper oil changes? Were the bearings back then made out of ferrous material? The guy I bought it from had got it with a truck he bought. So he didnt know anything about it. Should I just clean it up and run it? Im trying not to stick alot of money into it.

Joined: Mar 2002
Posts: 9,115
'Bolter
'Bolter
Joined: Mar 2002
Posts: 9,115
Well, if you have the pan off, I would have a look at the bearings and check their clearance. It would be good to know if they are OK or not before installing the motor.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
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Joined: Dec 2000
Posts: 506
5
Shop Shark
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Joined: Dec 2000
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At a minimum i would clean out the pan real good and put on a new oil pump if you can find one. Start it up and drive it.


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New Guy
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Joined: Apr 2008
Posts: 16
BITOG: What causes sludge?

I would use a 10W-30 HDEO (Heavy Duty Engine Oil) like Shell Rotella T4 (CL-4/SN) in your engine. The detergents in HDEO will slowly clean up the deposits in your engine. Brad Penn makes a 10W-30 HDEO (CI-4/SL) too.

Engine Oil Article
Sludge Article


Moderated by  Phak1, Woogeroo 

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