That brand new look for engine cases

Lineslinger said:

A bit off topic but a coating note.
Does anyone use Glyptal coating for the interior surfaces of their engine?
I used it extensively when rebuilding automobile engines and used it on the inner surfacing of my 850 engine before reassembling.
It acts a surface sealant that oil will not "stick" or adhere to...I was introduced to it in my other life from a high performance engine building friend...just curious if any others used it on a MC engine rebuild.

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I've never used it on any Norton case rebuilds, however the cases never oozed oil when installing bearings, and they had never been split. Very old school but effective. I still use powdered "Tide" laundry detergent with a nice brush when cleaning cylinder bores after honing. Bought a Drouin and the PO did coat the inside of the primary I would imagine due to the obvious porosity noted on the exterior. Maybe it was evident on the inside too, I don't know. Some friends in their 70's all did these things as a SOP when building motors.

Any extra effort to keep the oil circulating was used.

The yaki said:

Re polishing alloy chrome or stainless over 50+ years I've tried the lot. If you have never heard of "white diamond metal polish" then look it up on ebay or amazon. Outstanding results with little effort Autosol, mothers, astonish and all the rest come nowhere near. I have no connection with this polish but give it a try. Not cheap but I Won't use anything else now !!!

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yep ,me too One tip, when using White Diamond, polish as usual then let sit overnight if possible, and wipe off and burnish . Its kind of smeary if rushed.

...and shake that White Diamond container thoroughly, even put a chopstick in there to stir up particulate from the bottom - that's the "good stuff!" Store sideways. Appreciate that tip BTW I am a nut about AutoSol and Mother's but found this to be great, especially on older Zildjian cymbals.