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Always Be Fixing Cars
Join Date: Nov 2012
Location: SE CT
Posts: 1,629
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Is the cat heat shield SS or mild?
I'm guessing the cat heat shield on my 3.2 is some grade of stainless or it would likely be looking a lot worse by now... can someone confirm? I'm about to re-attach it and want to make sure there is nothing I should to to corrosion proof it before I do.
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'91 964 C4 - New Daily '73 Alfa GTV - 90% done 50% to go '65 912 - Welding in process |
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08-06-2013, 06:00 AM
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cycling has-been
Join Date: Sep 2004
Location: Jersey Shore
Posts: 7,238
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put a magnet on it
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73 911T MFI, 76 912E, 77 Turbo Carrera |
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08-06-2013, 07:10 AM
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Always Be Fixing Cars
Join Date: Nov 2012
Location: SE CT
Posts: 1,629
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True, will do this afternoon.
Actually I had my magnetic pickup on it while I was looking for a dropped fastener. Funny I can't remember if it was dragging on the shield or not.
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'91 964 C4 - New Daily '73 Alfa GTV - 90% done 50% to go '65 912 - Welding in process |
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08-06-2013, 07:12 AM
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Rescuer of old cars
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I'm pretty certain that mine is aluminum.
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2018 718 Cayman 2.0 Priors - '72 911T coupe, '84 911 Carrera coupe, '84 944, '73 914 2.0 |
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08-06-2013, 07:17 AM
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Registered
Join Date: Feb 2006
Location: Ontario Canada
Posts: 2,947
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im pretty sure mine ...er ... was .... too ...
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1976 Yamaha XS360 ( Beats Walkin') 1978 911 SC Targa ( Yamaha Support Vehicle ) 2006 Audi A4 2.0T (Porsche Support Vehicle ) 2014 Audi A4 2.0T Technik (Audi Support Vehicle) |
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08-06-2013, 09:55 AM
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cycling has-been
Join Date: Sep 2004
Location: Jersey Shore
Posts: 7,238
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would the factory put a thin-gauge aluminum panel that close to a heat source?
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73 911T MFI, 76 912E, 77 Turbo Carrera |
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08-06-2013, 10:13 AM
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Rescuer of old cars
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It's not all that thin. But since I drove to work today, I went out at lunch to take a closer look. I now believe it is zinc-plated steel, not aluminum, not stainless. Appears to be signs of surface rust where ever it has been scuffed.
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2018 718 Cayman 2.0 Priors - '72 911T coupe, '84 911 Carrera coupe, '84 944, '73 914 2.0 |
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08-06-2013, 01:20 PM
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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Mine is stainless on my '87 Carrera. Stainless, despite being called stainless, does discolor and develop slight corrosion. Salt and other debris can cause it to "rust."
Hit it with an abrasive pad (Scotchbrite red) and some degreaser and it will clean right up. Mine is a clean brushed/scratched finish now.
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Kevin L '86 Carrera "Larry" |
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08-06-2013, 01:44 PM
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'84 Carrera Coupe (Sold)
The Yellow One (Sold)
The one I wanted for decades (Sold)
Cayman
