Paint on internal parts

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Paint on internal parts

Postby Slappy » Wed Jan 26, 2005 6:29 am

As I have been doing restoration work on my Cub and other IH tractors, I come across internal components exposed to oil that are painted red (the inside of the governor casting on my Cub, for example). I assume this coating prevents rusting from water condensation that occurs due to changes in external temperature.

During the cleaning process (especially after electrolysis) most of the paint is removed. I want to repaint but am not sure what to use. Both Eastwood and POR-15 make an oil resistant paint that would work, but they are pricey$$$. I've heard a lot of talk about Red Kote (sp?), but haven't been able to find out much searching the web.

Do you think Red Kote would work for this application? If so, where might I find it? Other suggestions?

Again, thanks for all your suggestions.
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Postby johnbron » Wed Jan 26, 2005 8:07 am

I have never seen Red-Kote used for anything but sealing gas tanks. I think for your suggested use I would want a better bonding paint that would not by chance peel off in a solid sheet and gum up the internal workings of an engine. I noticed the red-lead colored paint you are talking about when I had the valve cover removed on My Cub but I assumed it was a protective primer type paint coat.
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Postby Dave (69 lo-boy) » Wed Jan 26, 2005 8:56 am

The red coating may be glyptal, a paint used on electric motors to insulate the windings, many high performance engine builders use glyptal to seal the pores on cast iron, it helps the oil drain faster into the pan and seals loose sand from the casting process.
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Postby artc » Wed Jan 26, 2005 9:01 am

noticed the same thing on the inside of the front wheel hubs on the W6 i'm working on. seems to stay on even through the parts washer and the electrolisis tank. so ithas good adhesion and oil petroleum resistant qualities.
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Postby Todd » Wed Jan 26, 2005 10:31 am

Most engine builders paint the inside of the engine. its just to help oil flow better, you dont need to do it. My dad always used rustolium in a can on his 30k race engines. If you want to use something greast use Spies Hecker "red etching primer"
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Postby Jim Becker » Wed Jan 26, 2005 7:27 pm

It is sealer, put on the castings before they were machined, to stop rust before they were used and keep oil from leaking through the housing. It may have been glyptal.
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Postby RedNed » Wed Jan 26, 2005 9:23 pm

I think it might be Glyptal too. Jim Becker and I had this conversation on my internal parts on my cub.The stuff is really durable.They most likely dipped it.I retreated my internal parts with GE glyptal 1201 painted it with a brush. inside of tranny case..engine block.etc.Match was pretty good.Don't know for sure if thats what they used, but sure looks right.Anyway it protected the metal.
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Postby Slappy » Thu Jan 27, 2005 7:01 am

Thanks guys. I had thought about glyptal - I know Eastwood sells it - but it was expensive, and I was hoping for a cheaper alternative. I guess I'll bite the bullet and pick up a can.
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Postby johnbron » Thu Jan 27, 2005 7:42 am

Slappy wrote:I know Eastwood sells it - but it was expensive, and I was hoping for a cheaper alternative. I guess I'll bite the bullet and pick up a can.



Here is a place that sells it for $8 a quart cheaper than Eastwwod.

http://www.caswellplating.com/aids/glyptal.html


I did a short search finding this so you may want to shop around a bit for better prices.
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Postby Slappy » Thu Jan 27, 2005 12:24 pm

Thanks John,

Anytime you can save a few dollars, that's a few more dollars to put toward the next Cub part.
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Postby Buzzard Wing » Thu Jan 27, 2005 10:03 pm

I noticed what I first thought was rust on the castings after taking the paint off. Sounds like that is the stuff. It does hold well! Very durable stuff.
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