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Joined: Apr 2015
Posts: 62
Just Getting Started
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OP
Just Getting Started
Joined: Apr 2015
Posts: 62 |
It would appear as if the headers on my '70 4/4 Kent Crossflow engine were at one time chrome plated. They appear to be a 300 series stainless of some sort since they are not magnetic. They are completely discolored. I'd like to blast clean them and then paint them a satin black of some sort using hi temp paint. They will certainly look better than they do now. If in fact they were chromed originally I might just bite the bullet and try to find a shop to re-chrome if the price was right although they would discolor again I suppose. Can anyone verify if these were usually chrome or were they black?
Mark 1970 4/4 Morgan Two '53 MG TD's 1949 MG TC 1988 Porsche Boxster
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Joined: Jul 2007
Posts: 26,748 Likes: 419
Member of the Inner Circle
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Member of the Inner Circle
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Posts: 26,748 Likes: 419 |
I can't imagine Mr Morgan flashing the cash for chrome.
JohnV6 2022 CX Plus Four 2025 MG ZS EV aka Trigger
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Joined: Apr 2009
Posts: 1,036
Has a lot to Say!
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Has a lot to Say!
Joined: Apr 2009
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I very much doubt if it's chome applied on to stainless steel.
Stainless manifolds stain, particularly in the area closest to the cylinder head where the exhaust gasses are hottest.
You could try polishing it out or simply admire life's chemistry and metallurgy at work! If it works, why worry?
Last edited by Cheshire_David; 14/03/16 09:48 AM.
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Joined: Apr 2015
Posts: 62
Just Getting Started
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OP
Just Getting Started
Joined: Apr 2015
Posts: 62 |
Thanks for the input. I think I'll just clean them and let it go at that. Mark
Mark 1970 4/4 Morgan Two '53 MG TD's 1949 MG TC 1988 Porsche Boxster
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Joined: Dec 2011
Posts: 1,943
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Dec 2011
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I just use rattle can exhaust paint. When they get unsightly, wire brush them and paint them again. Not sure but these headers are hard to find. Try to keep them from rusting.
Button Seattle
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Joined: Oct 2011
Posts: 3,513 Likes: 8
Talk Morgan Addict
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Talk Morgan Addict
Joined: Oct 2011
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If they are stainless, why not try using a fine abrasive paper on a small section and see what happens. I recently had some s/s manifold pipes to clean up, and tried this, which worked fine, but I wanted a highly polished finish, as they are on show, so took them to a local exhaust fabricator who polished them on his wheel, they looked a treat too, but a couple of thousand miles down the road, they are right back to where they were before. I've come to the conclusion that you either just leave them or wrap them.
Paul [At last, I have a car I can polish]
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Joined: May 2010
Posts: 9,285 Likes: 69
Needs to Get Out More!
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Needs to Get Out More!
Joined: May 2010
Posts: 9,285 Likes: 69 |
The heat they have to cope with means they will keep on becoming blue/straw coloured. When tempering steel these are the colours blacksmiths etc used to look for before quenching, indicating the correct temperature. Some high temp paint might work but I am not sure of its durability.
Plus Four MY23 Furka Rouge
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