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fuel tank heat shields

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G

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Discussion Starter · #1 ·
First off, do they all have that foam insulation material between the shields and the tank? Mine does, but looking at pictures of others that doesn't appear to be a universal truth.
Anyway, it seems that the insulating foam material between the fuel tank heat shields and the tank itself also serves as an adhesive of sorts. When I popped the shields off, I broke that adhesive bond, obviously. How do I get it back? Add glue? More foam? Also, if I were to get new heat shields, do they come with foam preattached? Or is it a kind of foam I can buy in the store and just spray in there?
 
G

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Discussion Starter · #2 ·
A previous pyrophobic owner may have added that foam? :confused: I'm not positive, but I'm guessing foam is NOT OEM.

Have you done a Car-Fax, maybe car was previously used by Hollywood Stunt People?

[ 08-15-2006, 02:51 AM: Message edited by: LarryCigar ]
 
G

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Discussion Starter · #3 ·
Originally posted by LarryCigar:
A previous pyrophobic owner may have added that foam? :confused: I'm not positive, but I'm guessing foam is NOT OEM.

Have you done a Car-Fax, maybe car was previously used by Hollywood Stunt People?
Click to expand...
LOL You're still Krazy Larry
:D
Foam is not OEM for any of the heatsheilds on our cars. More than likely it was put there by an owner, that was attempting to get rid of the common rattling that they will do after while.
New sheilds won't come with any foam, so you will need to add if you want it there. While your at it, I would use Dynamat or B-quiet intsead. Also add some to the bottom mounting areas, to help keep down the rattling possiblities.
 
G

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Discussion Starter · #6 ·
More than likely yes, but the retarded Logic goes into the effect as most cases with the Vic's was due to them still having Metal tanks
Ofcourse at the speed of impact that a Vic could go up, if a B-body was hit the same way, it too could go up
 
H

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31 Posts
#7 ·
re 1996 Caprice 146k B4U

I've noticed something hanging underneath the rear of the car near the fuel tank. It looks like a sheet metal baffle, possibly to somehow keep the fuel tank from being penetrated. I can't really see it and I'll have the mechanic put it on the lift to inspect it. I'm worried it might catch on the pavement and cause some damage. The shop manual calls it the "fuel tank Shield" but doesn't show a drawing. I'd rather know what I'm talking about when I bring it to the mechanic also to make sure if we reattach it somehow that we do it correctly. Anybody got any ideas or pictures or source for some? The heat shields I've seen on the forum don't look anything like what I'm talking about.
 
R

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110 Posts
#8 ·
HockeyJohn1 said:
re 1996 Caprice 146k B4U

I've noticed something hanging underneath the rear of the car near the fuel tank. It looks like a sheet metal baffle, possibly to somehow keep the fuel tank from being penetrated. I can't really see it and I'll have the mechanic put it on the lift to inspect it. I'm worried it might catch on the pavement and cause some damage. The shop manual calls it the "fuel tank Shield" but doesn't show a drawing. I'd rather know what I'm talking about when I bring it to the mechanic also to make sure if we reattach it somehow that we do it correctly. Anybody got any ideas or pictures or source for some? The heat shields I've seen on the forum don't look anything like what I'm talking about.
Click to expand...
I was dropping the gas tank heat shield .... my 1996 Impala is new and I dropped it around 8 yrs ago ....
the shield is rusted dropped it .....I was now the Impala running great .....I was doing the bilsteins shocks ...
the front passenger side spring was vehicle lower .. the engine compartment was the the HVAC/alternator/power steering pump/battery ... I used the spring coils passenger side , used the nut springs then lifted it ''
left /right side same measurement ...
so you updated it to the stainless steel heat shield ..
my 2000 silverado was the exhaust pipes/mufflers and the heat shield s/steel ...
 
PD939C1

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105 Posts
#12 ·
roy williams said:
I was dropping the gas tank heat shield .... my 1996 Impala is new and I dropped it around 8 yrs ago ....
the shield is rusted dropped it .....I was now the Impala running great .....I was doing the bilsteins shocks ...
the front passenger side spring was vehicle lower .. the engine compartment was the the HVAC/alternator/power steering pump/battery ... I used the spring coils passenger side , used the nut springs then lifted it ''
left /right side same measurement ...
so you updated it to the stainless steel heat shield ..
my 2000 silverado was the exhaust pipes/mufflers and the heat shield s/steel ...
Click to expand...
Sorry Roy. Not a clue.
 
B

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6,572 Posts
#16 ·
man crack is a biatch

meanwhile back to earth, the heat shields are there to minimize exhaust heat exposure. I am sure the engineers won over the bean counters to include them as they have a purposeful function.
 
PD939C1

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#17 ·
Not sure if the engineers won or the legal team's cost/risk analysis did in the remote event of a heat near gasoline incident. IMHO, you'd have to be idling in place on a hot day for a VERY long time before there was enough heat built up to become a risk.
 
91ss

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#18 ·
Also bear in mind, in a rear impact you might have tank to heatshield to exhaust pipe direct contact. The shields would act like a heat sink cooling the pipe when it's pushing on the tank.
 
B

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#19 ·
PD939C1 said:
Not sure if the engineers won or the legal team's cost/risk analysis did in the remote event of a heat near gasoline incident. IMHO, you'd have to be idling in place on a hot day for a VERY long time before there was enough heat built up to become a risk.
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yeah absolutely legal team had the final position.
 
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roy williams
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