Gas tank anti-squeek

BCA · Post by **BCA** » Mon Aug 03, 2015 3:09 pm

There are several pieces of 1" wide anti-squeak under the M38 gas tank. Can anyone tell me what type of material and thickness? I have had no luck in tracing the part numbers to get a better description however the Canadian M38/M38A1 parts book says that when supply is exhausted then to use a 1" textile webbing, herringbone twill, olive green, 75oz/yd, 0.040" to 0.050 " thick, mildew resistant. Maybe this webbing is similar to the NOS anti-squeak ......... Brian.

4x4M38 · Post by **4x4M38** » Mon Aug 03, 2015 5:10 pm

Hello Brian,
Search for anti squeak and you'll find several discussions on this
topic. The M38 material is 1" wide and 1/8" thick. I will be using
neoprene and while not OEM, will be fuel resistant and should
do the job for me.

Brian

Bretto · Post by **Bretto** » Mon Aug 03, 2015 5:14 pm

I just used some 1" wide 1/8" thick strips of fabric reinforced rubber belting cut into lengths as needed. Don't get too technical, no one will ever see the stuff. I would stay away from a webbing material or anything that can hold moisture if you know what I'm saying.

4x4M38 · Post by **4x4M38** » Mon Aug 03, 2015 5:33 pm

So under M38 gas tank is a good discussion.
http://www.willysmjeeps.com/v2/modules. ... nti+squeak

The problem I have with webbing is it will get wet. That's why I went with neoprene. I bought a sheet of 1/8" on EBay with enough for all my anti squeak and plenty left over.

Brian

BCA · Post by **BCA** » Mon Aug 03, 2015 6:02 pm

Thanks for the replies and links to CJ info and past discussions. I tried searching but as you can in the header I spelled anti-squeak incorrectly. Also I did not see any comment on the thickness or composition of the documented anti- squeak in the CJ's. .... Brian

keats · Post by **keats** » Mon Aug 03, 2015 9:36 pm

I can add this to this discussion.

http://www.willysmjeeps.com/v2/modules. ... ght=#49458

Again, none of these diagrams show a sponge rubber donut around the drain plug. (yeah, I know, still beating a dead horse.)

Post by **wesk** » Mon Aug 03, 2015 10:22 pm

That was an interesting post. I can say this about that NOS strap. I would never use that strap with those staples in it on my very difficult to find and expensive M38 tank! I would glue that liner strip to the strap. It surprises me that it came with the staples. My tank straps have no staple holes in them.

Your friend's NOS

My originals

BCA · Post by **BCA** » Tue Aug 04, 2015 7:38 am

Thanks to all for the information. I have one of the NOS gas tank straps with the black impregnated fibrous anti-squeak which is stapled to the strap.(I have also seen the staple holes on a nice American 5/52 M38) The width is 1" and the thickness is 1/16" . I strongly suspect this is the same anti-squeak material used under the fuel tank.

Post by **wesk** » Tue Aug 04, 2015 8:31 am

Only a factory drawing would present us with which is correct. Keith may be able to help here. Supplier contracts that were let later in time often had very wide parameters or specs for the supplier to meet.

4x4M38 · Post by **4x4M38** » Tue Aug 04, 2015 9:46 am

My used M38 tank strap has those same staples as well as
several layers of various OD paint shades.

Post by **wesk** » Tue Aug 04, 2015 9:54 am

The several shades of OD mean only that it was repainted several times by someone. Original straps installed at the factory will have OD 2030 on them first. Subsequent new off the shelf straps installed in the field will have various OD colors. And both may have been repainted many times. Mine had several coats of various OD on them before I painted them Strata Blue.

4x4M38 · Post by **4x4M38** » Tue Aug 04, 2015 9:54 am

I was looking at Keats links. One poster mentioned Homasote.
I would not recommend this product for an outdoor/wet
application as it is a paper based product that swells when wet,
shrinks with age and breaks down after being soaked.

Hidden behind a vapor barrier and concrete or exterior siding
and used in a similar fashion as Sheetrock, it will last decades.
Set some outside in the weather and you get a soft, wet mess
that breaks down into a paper/cardboard consistency. I believe it
would be a disaster under a tank.

Just my two cents.
Brian

Post by **wesk** » Tue Aug 04, 2015 9:59 am

The choice of materials for this topic was bantered around many times in the past and the usual final agreement was to use thin rubber or neoprene and lay it out under the tank to insure it did not trap water. Trying to go original with this item is much like re-installing wood inside your hat channels. You end up causing the same corrosion that brought the jeep to where it is now. In the interest of safety and/or longevity we often must choose modern materials or parts over the older parts and this choice rarely causes an issue with a display jeep's judging. If it will cause an issue can be determined by discussing it with the judges before hand.

4x4M38 · Post by **4x4M38** » Tue Aug 04, 2015 10:01 am

Hi Wes,
Happy August! 100 here.

Hey, take a look at Bob's CJV35 tank installation diagram linked above.

That top strap appears to have three staples in it just like mine and
the photo of the other member's strap.
Brian

Post by **wesk** » Tue Aug 04, 2015 10:36 am

You can show me three thousand photos of straps with staples and it still boils down to two things I have said enough about.

1-Until we see the factory drawing we can only suppose what may have been.

2-No way I'll put a strap with metal staples against a fuel tank that is getting harder to find and also getting very expensive.