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Farmall & IHC Tractors Discussion Forum
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Engine block paint/sealer

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BOBM25

05-12-2008 12:25:57




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Has anyone ever painted/sealed the inside of an engine block? I know they had something on them from the factory. What was it? Is it necessary?




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Jim Becker

05-15-2008 19:27:53




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 Re: Engine block paint/sealer in reply to BOBM25, 05-12-2008 12:25:57  
Unfortunately, even if you get the inside properly sealed now, oil that is already in the cast iron will continue to seep out for some time.



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charles todd

05-15-2008 18:27:56




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 Re: Engine block paint/sealer in reply to BOBM25, 05-12-2008 12:25:57  
I have never seen the inside of the block, but there is a silver substance, almost like "Kool-Seal" on the outside where the weld was ground smooth. One day I plan to re-sleeve and install a piston kit, re-do the head, ect. It may not need these services, but before I paint it, I want to be finished working on it for a long time! When I drop the pan, I would like to seal from the inside with a cast iron sealant at the repair area. Also, what could I use on the outside to ensure a good, leak free seal?
Thanks,

Charles

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charles todd

05-14-2008 19:59:26




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 Re: Engine block paint/sealer in reply to BOBM25, 05-12-2008 12:25:57  
I am curious about this "crankcase sealer". At one time my F504D threw a rod and knocked two holes in the block. These were welded well and some type of sealer was used (seems to be silver), it weeps just enough to annoy me and keep the block oily/dirty, but not enough to call it a leak... I would like to repair this, kinda hard to plan a repaint as is. Help!

Charles



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CNKS

05-15-2008 17:26:51




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 Re: Engine block paint/sealer in reply to charles todd, 05-14-2008 19:59:26  

charles todd said: (quoted from post at 19:59:26 05/14/08) I am curious about this "crankcase sealer". At one time my F504D threw a rod and knocked two holes in the block. These were welded well and some type of sealer was used (seems to be silver), it weeps just enough to annoy me and keep the block oily/dirty, but not enough to call it a leak... I would like to repair this, kinda hard to plan a repaint as is. Help!

Charles


I don't know if you meant they put it on the inside or outside of the block, but sealer is supposed to be used on the inside, from what little I know about it. I doubt if you want to disassemble the engine, but that probably is the only way to fix it. Seems like it should have been welded on the inside, also.

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randy hall

05-12-2008 19:58:35




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 Re: Engine block paint/sealer in reply to BOBM25, 05-12-2008 12:25:57  
glyptol is an electric insulating paint. paint to seal crankcases is called crankcase sealer. they buy it cases at a time at work. it is a laquer paint and it will stick to anything.



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CNKS

05-13-2008 05:15:56




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 Re: Engine block paint/sealer in reply to randy hall, 05-12-2008 19:58:35  
You are correct, however when I was thinking about using it I found several references about it being used as a crankcase sealer. I was afraid to use it for that. Did not see any mention of the lacquer you mentioned -- probably looking at the wrong sources.



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CNKS

05-12-2008 17:21:59




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 Re: Engine block paint/sealer in reply to BOBM25, 05-12-2008 12:25:57  
Glyptol as Steven says. I have a can but backed out of using it--more harm than good? The use was to keep cast parts from leaking oil, I believe. The block really doesn't fit that category, the rear end might.



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Steven f/AZ

05-12-2008 12:50:35




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 Re: Engine block paint/sealer in reply to BOBM25, 05-12-2008 12:25:57  
Sealer should not be necessary after the original job of sealing it.

I believe they used Glyptol. That or something similar can probably be found in a racing catalog like SummitRacing.com



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