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porschpow Mon Apr 30, 2012 11:46 am

I need to get the 12mm hose onto the midle top of the fuel tank (vapor/overfill) COuld you use Grease without it breaking down the rubber?? Is this a danger. I mean obviously you just use a little bit, but I am worried that if I do this the grease might shorten to life of the rubber. Any thoughts???

mikewire Mon Apr 30, 2012 11:51 am

I use carb spray or silicone spray. CRC brand in the red bottle, it's magic!

Stuartzickefoose Mon Apr 30, 2012 12:00 pm

dude. rename this thread to "lubing up rubber" ....hahahaha :twisted:

hazetguy Mon Apr 30, 2012 12:09 pm

go to napa and get some sil-glyde.
http://www.amazon.com/Sil-Glyde-Silicone-Lubricating-Compound-Ounce/dp/B0054DWS1W

porschpow Mon Apr 30, 2012 12:18 pm

Yeah unfortunately the nearest NAPA is far from me. There is an Autozone near me

Would the CRC (carb/silicone spray) ruin the rubber ???

Only reason is that my dad always used grease for everything, lol

skills@eurocarsplus Mon Apr 30, 2012 12:20 pm

X2 for the carb or brake clean trick. It will help hoses slide on and evaporate after a minute. Imho if you use any kind of lube you run the risk of it breaking down the rubber or popping off because it is so slick.

Wildthings Mon Apr 30, 2012 12:20 pm

This is a fine use for WD40. Good old soapy water may work as well, but can cause rust in places.

ewdb92 Mon Apr 30, 2012 12:55 pm

I always had good luck with windex for foam and rubber components (esp the front engine compartment seal)

nathansnathan Mon Apr 30, 2012 1:41 pm

Wildthings wrote: This is a fine use for WD40. Good old soapy water may work as well, but can cause rust in places.

WD40 is mostly derived from mineral oil which is a petroleum product and will degrade rubber. Afaik there are no good uses of WD40.

ccpalmer Mon Apr 30, 2012 1:48 pm

ewdb92 wrote: I always had good luck with windex for foam and rubber components (esp the front engine compartment seal)

I've heard that windex is bad for window rubber...

RatCamper Mon Apr 30, 2012 1:50 pm

Am I the only one that uses a container of near boiling hot water for rubber hoses? I had to use that trick on brake booster hose, fuel hoses and various others. The booster hose was especially fun. I used it to replace the black plastic ones, but the largest size available was a couple of mm too small. Got it on anyway. Still sealed perfectly years on. It makes the rubber really soft briefly so you have to work fast.

ccpalmer Mon Apr 30, 2012 1:55 pm

RatCamper wrote: Am I the only one that uses a container of near boiling hot water for rubber hoses? I had to use that trick on brake booster hose, fuel hoses and various others. The booster hose was especially fun. I used it to replace the black plastic ones, but the largest size available was a couple of mm too small. Got it on anyway. Still sealed perfectly years on. It makes the rubber really soft briefly so you have to work fast.

Sounds like a great idea. Just be sure to completely dry things off - heat gun could also work or a hair dryer to be safe.

ewdb92 Mon Apr 30, 2012 2:35 pm

ccpalmer wrote: ewdb92 wrote: I always had good luck with windex for foam and rubber components (esp the front engine compartment seal)

I've heard that windex is bad for window rubber...

Never heard that before. Might depend on how often and how much you use. So far I have not had any issues with the rubber degrading.

ccpalmer Mon Apr 30, 2012 2:45 pm

ewdb92 wrote: ccpalmer wrote: ewdb92 wrote: I always had good luck with windex for foam and rubber components (esp the front engine compartment seal)

I've heard that windex is bad for window rubber...

Never heard that before. Might depend on how often and how much you use. So far I have not had any issues with the rubber degrading.

I think the ammonia is said to dry out rubber.

RatCamper Mon Apr 30, 2012 2:46 pm

ccpalmer wrote: RatCamper wrote: Am I the only one that uses a container of near boiling hot water for rubber hoses? I had to use that trick on brake booster hose, fuel hoses and various others. The booster hose was especially fun. I used it to replace the black plastic ones, but the largest size available was a couple of mm too small. Got it on anyway. Still sealed perfectly years on. It makes the rubber really soft briefly so you have to work fast.

Sounds like a great idea. Just be sure to completely dry things off - heat gun could also work or a hair dryer to be safe.

That's true. Heat gun could be risky. Hair dryer would take a while but should work.
Honestly I've found the traces of water on the hoses evaporate off pretty quickly if the water is hot enough. I can see where trapped moisture could be an issue in some circumstances though. I mean a few stray molecules of water don't bother me if they get trapped between a reinforced hose and a brass barb fitting, but when it's a ferrous fitting it is a slightly different story.

ccpalmer Mon Apr 30, 2012 2:47 pm

RatCamper wrote: ccpalmer wrote: RatCamper wrote: Am I the only one that uses a container of near boiling hot water for rubber hoses? I had to use that trick on brake booster hose, fuel hoses and various others. The booster hose was especially fun. I used it to replace the black plastic ones, but the largest size available was a couple of mm too small. Got it on anyway. Still sealed perfectly years on. It makes the rubber really soft briefly so you have to work fast.

Sounds like a great idea. Just be sure to completely dry things off - heat gun could also work or a hair dryer to be safe.

That's true. Heat gun could be risky. Hair dryer would take a while but should work.
Honestly I've found the traces of water on the hoses evaporate off pretty quickly if the water is hot enough. I can see where trapped moisture could be an issue in some circumstances though. I mean a few stray molecules of water don't bother me if they get trapped between a reinforced hose and a brass barb fitting, but when it's a ferrous fitting it is a slightly different story.

As long as the water was actually boiling it should dry out very quickly.

kreemoweet Mon Apr 30, 2012 3:14 pm

If the hose is suitable for use with gasoline and its vapors, how could a little grease hurt it?

Stuartzickefoose Mon Apr 30, 2012 3:18 pm

how much was the bushing? a 2 dollar at most piece of rubber? use spit, and if that eats the rubber...buy another one... :roll:

mikewire Mon Apr 30, 2012 3:30 pm

Stuartzickefoose wrote: how much was the bushing? a 2 dollar at most piece of rubber? use spit, and if that eats the rubber...buy another one... :roll:

It's the 90 degree breather/vapor hose on the top of the fuel tank ('72 and early '73 IIRC), behind the firewall, where you won't easily see it and/or replace it. Do it once, the right way, and you won't mess with it for a long time.

Stuartzickefoose Mon Apr 30, 2012 3:31 pm

mikewire wrote: Stuartzickefoose wrote: how much was the bushing? a 2 dollar at most piece of rubber? use spit, and if that eats the rubber...buy another one... :roll:

It's the 90 degree breather/vapor hose on the top of the fuel tank ('72 and early '73 IIRC), behind the firewall, where you won't easily see it and/or replace it. Do it once, the right way, and you won't mess with it for a long time.


got it. :oops:



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