 Fire wall liner, heavy @ dirty |
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| 80cap |
 Jan 24 2016, 07:54 AM
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#1
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Member  Group: Members Posts: 322 Joined: 6-February 15 From: ohio Member No.: 18,405 Region Association: None  |
Is the heavy rubber like fire wall liner necessary or does dynomat or
similar sound mat just as good? Thanks Brian (IMG:style_emoticons/default/confused24.gif) |
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| dflesburg |
Jan 24 2016, 08:34 AM
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#2
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Senior Member Group: Members Posts: 1,722 Joined: 6-April 04 From: Warm and Cheerful Centerville Ohio Member No.: 1,896 Region Association: None |
we use hood liner in the engine bay and dyno mat in the passenger compartment in our cars and it is good.
I don't like it on the floor surfaces as it can trap water, we put it on the underside of the floor mats.... |
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| 80cap |
Jan 24 2016, 08:39 AM
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#3
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Member Group: Members Posts: 322 Joined: 6-February 15 From: ohio Member No.: 18,405 Region Association: None |
What is hood liner?
Brian |
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| Garland |
Jan 24 2016, 09:26 AM
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#4
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Restoration Fanatic Group: Members Posts: 1,430 Joined: 8-January 04 From: ......Michigan...... Member No.: 1,535 Region Association: Upper MidWest 
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Here's a factory pad. I'm debating what to use to attach it with. I'm thinking something other then glue, any ideas?
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| cary |
Jan 24 2016, 10:47 AM
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#5
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Advanced Member Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest
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Here's what 914 Rubber sells.
http://shop.914rubber.com/Fireall-backpad-foil-914FWF.htm |
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| Mikey914 |
Jan 24 2016, 12:12 PM
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#6
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The rubber man Group: Members Posts: 12,772 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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I also have the rubber aircraft firewall material precut at $120 a pop (just not listed as we just completed another run. I would use Velcro to attach as you can easily remove later.
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| 80cap |
Jan 24 2016, 12:13 PM
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#7
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Member Group: Members Posts: 322 Joined: 6-February 15 From: ohio Member No.: 18,405 Region Association: None |
The 914 rubber pad goes on the engine side.
The one pictured above is the interior pad. That is the one I'm referring to. Brian |
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| saigon71 |
Jan 24 2016, 02:16 PM
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#8
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Advanced Member Group: Members Posts: 2,020 Joined: 1-June 09 From: Dillsburg, PA Member No.: 10,428 Region Association: MidAtlantic Region 
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I went with Rattle Trap on the inside (similar to dynomat but slightly thicker) and a firewall pad from 914 rubber on the engine side. Gives a comfortable sound level in the cabin.
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| r_towle |
Jan 24 2016, 04:15 PM
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#9
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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QUOTE(Garland @ Jan 24 2016, 10:26 AM)  Here's a factory pad. I'm debating what to use to attach it with. I'm thinking something other then glue, any ideas? That rubber piece does two things It blocks a specific set of sound frequencies. It blocks noisy vibration if firmly attached to the firewall. So, how you attach it will determine how good it works. Noise is both sound frequencies and sound vibration.... Velcro (the 3m command strips are very strong) may be a choice that could work. |
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| Dave_Darling |
Jan 24 2016, 04:18 PM
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#10
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914 Idiot Group: Members Posts: 15,335 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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Early 914s and 914-6es did not have the pad on the engine bay side of the firewall. Its primary purpose any more seems to be to hold water against the wall, promoting rust. Mine is long gone.
--DD |
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| Garland |
Jan 24 2016, 04:28 PM
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#11
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Restoration Fanatic Group: Members Posts: 1,430 Joined: 8-January 04 From: ......Michigan...... Member No.: 1,535 Region Association: Upper MidWest
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Went ahead and glued it on, used 3M super 77 both surfaces. Wanted It to lay down flat, some areas required a little heat to level out. Even found the part number.
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| r_towle |
Jan 24 2016, 05:07 PM
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#12
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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Cool, that will work.
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| dflesburg |
Jan 24 2016, 05:20 PM
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#13
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Senior Member Group: Members Posts: 1,722 Joined: 6-April 04 From: Warm and Cheerful Centerville Ohio Member No.: 1,896 Region Association: None |
hood liner is like dyno mat but thermal and thicker. google it
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| dflesburg |
Jan 24 2016, 05:20 PM
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#14
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Senior Member Group: Members Posts: 1,722 Joined: 6-April 04 From: Warm and Cheerful Centerville Ohio Member No.: 1,896 Region Association: None |
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| Larmo63 |
Jan 24 2016, 11:51 PM
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#15
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Advanced Member Group: Members Posts: 4,267 Joined: 3-March 14 From: San Clemente, Ca Member No.: 17,068 Region Association: Southern California |
I took Dave's advice, and just now ripped all that shit off of the firewall in the black car. Removed, vacuumed, and cleaned up in there. That is all the fiber pad really does, is make the firewall inside the engine compartment rusty, and cause you to haul around extra dead weight. What a POS.
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| Mikey914 |
Jan 25 2016, 12:15 AM
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#16
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The rubber man Group: Members Posts: 12,772 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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Sorry, thought you were talking about the engine side
I did replace mine with dynamat. Lighter and more sound deadning. |
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