Re: Manifold Paint

[Roger Furneaux]

Re: [mg-tabc] Manifold Paint WOW! my remark about black paint really sparked things off there... Thanks to Peter Pleitner for the definitive answer: it is MANY years since I studied Physics, so my brain is hazy on such things as Boltzman and Quantum theory, I just remembered something about black body radiation (if we are allowed by the PC police to say that). On the subject of stripped threads, I do indeed have some helicoil kits if you cannot find one in the States, and can supply the "Mad Metric" 8 x 1mm bolts in any length you want. oc[b]T[/b]agonally Roger TC0978 TC2365

[quote]Thanks for the responses on the manifold paint. This is all current as I have the engine out for the 3rd time for a leaky rear seal, and I'm confident enuf this time to tidy everything up before reinstalling. Incidently, I used a Moss conversion. The problems I had were do to with the seal housing not centering on the crank flange, so with the help of a mandrel I have now assured its correct position. I also substituted a very expensive Vitron seal, for the one supplied. Anyhow, there are 2 of the threaded holes in the aluminum sump that are stripped where the trany bolts up. If I can find a couple of nufeld bolts with an 11/4 long shank (7mm dia) 1/4W head, 10 threads to the cm., I would be able to catch 1/4 in of undamaged thread in the sump. Or does anyone have a alternative proven solution which does'nt include oversize non std bolts?[i] [/i] [i]Steve Rankin TC 6646 [/i]

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[Bill Hentzen]

Greetings! The exhaust manifold is coated with metalized aluminum, sprayed molten Aluminum at 1200 degrees plus. I believe the exhaust pipe is also treated that way. Problem is that any high heat paint will rust thru very quickly esp. as the film thickness is low because the volume solids of high heat paint is also low. What has helped for me is to have the entire system metal sprayed in alumimun which gives a high build coating and then coat the manifold and exhaust pipe with aluminum and the muffler and tail pipe with black high heat paints. Extra benefit is that I can touch up the paint after assembly whereas the sprayed metal is a brilliant aluminum and aluminum paint is grey due to the configuration of the aluminum pigment in a paint film and does not match. Look under metal spraying in the yellow pages. We have six applicators here in Milwaukee if you need a source. Cheers! Bill Hentzen