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#1 |
![]() Join Date: Nov 2016
Location: New Brunswick
Posts: 951
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And all I got was a nice minty smell under the hood. I used Canadian Arm And Hammer Extreme White, and my plenum ended up neither extremely white, or even noticeably better.
Seems some long discontinued Adam?s Polishes used to be recommended around these parts, but I?m wondering what folks are using now.
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1990 ZR-1 # 996 "All Corvettes are red. The rest are mistakes." - John Heinricy |
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#2 |
Join Date: Feb 2016
Location: Carterville Illinois
Posts: 846
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Tap water on the engine, nothing more.......Only Adams I use in engine bay is Adams tire shine for all the hoses.
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#3 |
![]() Join Date: Aug 2021
Location: Bradenton, FL
Posts: 136
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On my first '90 ZR1, I had a few stains on my plenum and cam covers. I used some cotton balls and q-tips for the tight places along with a standard rubbing compound (I think Turtle Wax made it).... lightly rubbed in the compound with 1 cotton ball and cleaned it off with another. It darkened the current gray color just a bit but looked great. It had a nice sheen on it too.
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#4 |
Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,057
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As stated COLD engine and water,I've used diluted Windex for stains. Engine even remotely warm and it will stain.
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#5 |
Join Date: Oct 2018
Location: Indiana
Posts: 47
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I have used 3m rubbing compound on the valve covers and intake to remove stains and hazing. Worked pretty well.
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#6 | |
![]() Join Date: Jan 2008
Location: Wichita, Ks.
Posts: 318
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2009 LS9 1990 LT-5/sold/Bought my Baby back 1994 Lingenfelter LT-5/sold 1973 LS4/sold |
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#7 |
Join Date: Jul 2024
Location: Illinois
Posts: 16
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