fuel tank straps
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Tuned
Joined: Oct 2006
Posts: 361
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From: Eagle River, Alaska
fuel tank straps
I,ve got a question about the 1990 f350 fuel tank straps.
In a ongoing search for a replacment for, the insulator material used between the lower tank straps (braces)for my 83 , I found two ford parts counters, unable to find the original webbing type . Because of this I had them look up the insulator for your year f350 (90) . First they found the listing as a heat insulator clicked on that, then it was called a insulator. I have found three part #rs for the insulator material , and purchessed two of em. But
In the 90 application of this insulator how is it applied. The parts
I have seem to be cut to fit, with a paper backing on one side and a clear plastic on the other . The black high density foam center seems to have addhezive on both sides , should the plastic side stay with the foam to resist abrrasion. Do the straps on the 90 get covered from the front of the tank to the back . Should the insulator be stuck to the tank or strap. Any help would be great .
In a ongoing search for a replacment for, the insulator material used between the lower tank straps (braces)for my 83 , I found two ford parts counters, unable to find the original webbing type . Because of this I had them look up the insulator for your year f350 (90) . First they found the listing as a heat insulator clicked on that, then it was called a insulator. I have found three part #rs for the insulator material , and purchessed two of em. But
In the 90 application of this insulator how is it applied. The parts
I have seem to be cut to fit, with a paper backing on one side and a clear plastic on the other . The black high density foam center seems to have addhezive on both sides , should the plastic side stay with the foam to resist abrrasion. Do the straps on the 90 get covered from the front of the tank to the back . Should the insulator be stuck to the tank or strap. Any help would be great .
Elder User
Joined: May 2006
Posts: 623
Likes: 1
From: Mississauga,Ont.,Canada
When replacing the fuel tank straps I have cut strips of rubber and silconed them to the strap. I wouldnt use anything that could absorb moisture because it would hold water and accelerate rusting where the straps make contact with the tank. I am not familiar with what you have bought . Just a guess though I would put the adhesive side to the strap and the other side without adhesion make contact with the tank to would allow for any slight for movement.
Thread Starter
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Tuned
Joined: Oct 2006
Posts: 361
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From: Eagle River, Alaska
Thanks for the response. I used some rubber sheeting to replace a section of the orig. woven insulator while attempting to patch the tank. You may be right that its a fine sub.. The material I got from ford doesn't seem to be absorbent, so it may be an upgraded material for such use . Hard to imagine the trouble finding original I've Had , then even finding the part for a newer app. was not readily presentable by parts depts.
Both sides of new part seem to have adhesive, but one side has a clear plastic on it that matches size of pad. I will prob. leave the plastic in place as you mention , but not sure of attatching to brace or tank. Frame movement or tank expansion and contraction, which one happens most. I'm quessing frame motion so the scuffing would slide against hard plastic sheet if pad was stuck to the tank? As well having pad stuck to new tank would keep stones and debris away from its surface. Thinking out loud. Again, thanks for the chat
Both sides of new part seem to have adhesive, but one side has a clear plastic on it that matches size of pad. I will prob. leave the plastic in place as you mention , but not sure of attatching to brace or tank. Frame movement or tank expansion and contraction, which one happens most. I'm quessing frame motion so the scuffing would slide against hard plastic sheet if pad was stuck to the tank? As well having pad stuck to new tank would keep stones and debris away from its surface. Thinking out loud. Again, thanks for the chat
Elder User
Joined: May 2006
Posts: 623
Likes: 1
From: Mississauga,Ont.,Canada
Everytime I have replaced gas tanks there has been pin holes where the straps make contact with the tank. I have tried different aproaches such as undercoating the tank and painting it, siliconing the outside edge of the strap to keep moisture out, but in the end it has never worked 100%. One thing I have tried is a company here restores original tanks by sandblasting them and spraying with epoxy paint. The tank has been on for 4 years so it really isnt enough time to see if it is better system.I believe the real solution is a plastic tank, or a completly different design for attatching the steel tanks. Some things that the manufacture does in the original building of the truck are not the best ideas but can get the truck assembled in the fastest way. The fact you are doing something will give pretty good service rather than just letting the strap wear or rub on the tank with nothing on it.My steel tanks last about 10 years here given our winters.
Roger
Roger
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Tuned
Joined: Oct 2006
Posts: 361
Likes: 0
From: Eagle River, Alaska
Thanks for the vote of comffidance. Fire took out my second car at age 17,. Afuel leak next to the carb. So these type o things make me , uh , nevous. For the most part our climates sound simmalar. I,m in south central alaska since 75.
Stay well, Don
Stay well, Don
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