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Air-blocking foam in engine bay...
The foam between the rear shock bridge and the firewall in my engine bay is very old and crumbled away. I understand the purpose of this foam is to block hot air from recirculating back into the engine bay.
Does anybody run without the foam? What have you used for replacement? Is it better to replace, or OK to do without? Thanks for the help. |
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08-20-2011, 10:19 AM
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I'm having a hard time picturing this.
Can you post a few photos?
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1977 911S Targa 2.7L (CIS) Silver/Black 2012 Infiniti G37X Coupe (AWD) 3.7L Black on Black 1989 modified Scat II HP Hovercraft George, Architect |
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08-20-2011, 10:25 AM
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Member 911 Anonymous
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It would not hurt to replace those.
There are only one on each side for some reason PAG decided to leave the center portion open. My guess is to allow the transmission breather port to breath and escape up that opening, but it will also divert hot air up it as well. Local hardware stores have the tar treated foam blocks used in roofing that others have used with much success.
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC Last edited by DRACO A5OG; 08-20-2011 at 10:55 AM.. |
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08-20-2011, 10:51 AM
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Registered
Join Date: Jan 2004
Location: Docking Bay 94
Posts: 7,017
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Someone posted on this a while back, you should have that piece in there. Some dense foam (closed cell foam would be best) from Home Depot, etc cut to shape would work fine.
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Kurt |
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08-20-2011, 10:53 AM
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Member 911 Anonymous
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But do we want to seal it completely or leave the center gap as PAG designed???
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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08-20-2011, 10:58 AM
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Manassas, VA
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Our host has this. (P/N 911-556-891-01 at $58.50) I bought it (mine was P/N 964-556-281-01 at $74.00) and the install was easy. The foam cuts down on heat radiated into the interior and engine noise, not the good kind, the bad kind (high frequency that can damage your hearing). Better than original and looks good.
Mark
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1991 964 Polar Silver Metallic Turbo Coupe |
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08-20-2011, 11:01 AM
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Recreational User
Join Date: Mar 2004
Location: A Mile High
Posts: 4,159
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Don't go second-guessing the PAG engineers. I say leave the center gap as designed.
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08-20-2011, 11:03 AM
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Member 911 Anonymous
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Quote:
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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08-20-2011, 11:06 AM
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Retired Member
Join Date: Sep 2005
Location: Guelph Ontario
Posts: 2,519
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I removed mine when I re-painted the engine bay 3 years ago. I've had no issues since.
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80 911 SC sold 17 Tahoe 07 Z06 Corvette 
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08-20-2011, 11:22 AM
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Registered
Join Date: Jan 2005
Location: cooperstown NY
Posts: 894
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fwiw you can get a 2" square foam insulation strip at your local hardware store (mine is an ACE).
its used to seal in window A/C. costs about $3 coat it with some black window caulk to install.
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bob 1972 E pos correction: expensive pos someday.... "shut up and drive!" |
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08-21-2011, 11:52 AM
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1977 Porsche 911S 2.7L
Marble Grey
1991 Porsche 964 Turbo 3.3L
