I'm about to assemble a set of XLCH motor cases and ran out of the Glyptal I've recently been using as an internal coating. I noticed that Gasoila, which I used years ago when employed at a Harley dealership, is still available so I ordered a small amount of what is now marketed as 'Gasoila Hard-Set'. The product is apparently now used as a thread sealant . Upon receipt, I noticed that looks the same as the varnish that I remember, except that its a bit thicker than the old stuff. It looks like the new material has a higher solids content than I remember so, despite the warnings on the can, I'm tempted to thin it out a little using denatured alcohol to enable me to brush on a thin coat. However, after a long hot morning shower, I'm now thinking of not coating the the cases at all.
My understanding was that the factory-applied Gasoila coating served to allow the oil to move along the case surface for more effective scavenging into the scraper pocket, to keep oil from seeping into the porous sand casting, and/or to seal-in any embedded contaminates. However, over the years, I've rebuilt many motors that had been previously serviced years prior and had the coating previously removed. After cleaning, these cases looked no different than cleaned up coated cases. Furthermore, 74 transmission cases as well as the back (transmission) end of Sportster cases were never factory-coated, nor have I ever done so. Again, no short or long-term ill effects that I've observed as a result.
I'm fairly sure that I'm not going to coat the inside of these cases and was wondering if anyone can offer any experience or advice as to why I would be wrong in not doing so.
Thanks....
My understanding was that the factory-applied Gasoila coating served to allow the oil to move along the case surface for more effective scavenging into the scraper pocket, to keep oil from seeping into the porous sand casting, and/or to seal-in any embedded contaminates. However, over the years, I've rebuilt many motors that had been previously serviced years prior and had the coating previously removed. After cleaning, these cases looked no different than cleaned up coated cases. Furthermore, 74 transmission cases as well as the back (transmission) end of Sportster cases were never factory-coated, nor have I ever done so. Again, no short or long-term ill effects that I've observed as a result.
I'm fairly sure that I'm not going to coat the inside of these cases and was wondering if anyone can offer any experience or advice as to why I would be wrong in not doing so.
Thanks....
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