Stiff rubber

Hey guys I have this firewall grommet that is original to my car for the main wiring harness.
It is old and stiff making it hard to work with.

Wondering if anyone has a way to soften up old brittle rubber?
I was thinking maybe scrub it with wd40?

I appreciate any and all help.


Keith

 

3 parts 91% isopropyl alcohol and 1 part wintergreen methyl salicylate. Soak 24 hours.

 

I wish it was that easy. If a new one was available I would have already bought it.

It's like a lot of other parts for the Y body cars there not reproduced or remade. We just got to make do.


Keith

 

There is a product I use in electronics called Rubber Renue (Spelling is correct, just weird). It is for belts and things on printers, turntables.... but should work for your grommet as well. It is available on Amazon and in some stores.

 

Rubber Care by Wurth is the product your looking for

 

My local hardware store has a large assortment of grommets. I'll also bet that someone has them online, unless it's something that was manufactured specifically for that car. I would think that GM would have purchased them off-the-shelf, rather then going through the time and expense of having them custom made to GM's specs.

 

What kind of rubber are talking about? I just use it once

 

Would this work? https://www.stage1restoration.com/product/grommet-a-c-hose-grommet/

 

I see your plug has a flat spot..... Why can't you trim-out the flat spot on the firewall and use a standard everyday easy to find grommet?

 

Yeah it’s gross if it dried up

 

I can see where "Woody" posting about a stiff rubber could be a problem...sorry Woody, couldn't resist.

 

Reminds me of a Riddle: " What's the difference between a Tire and 365 Rubbers ..? "
One is a GOOD YEAR* while the Others ARE A GREAT YEAR.. !

 

Just going through old threads looking a certain one.
Some of these posts should be in the “funny “ thread! You guys crack me up!

 

I know this is an old thread but I could print one if I had an example to work from.

 

Try the Steele Rubber catalog. They make a whole lot of obscure rubber parts.

 

then it would leak defeating the purpose of it…right?

 

I've already bought every single product that Steele Rubber offers for the 63 skylark.
I wished that they would offer them for sale.


Keith