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porschpow
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Joined: May 21, 2005
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Location: Hamilton, NJ / Flanders, NJ
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 Posted: Mon Apr 30, 2012 11:46 am Post subject: Greasing up rubber hoses |
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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???
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mikewire
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| Posted: Mon Apr 30, 2012 11:51 am Post subject: |
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I use carb spray or silicone spray. CRC brand in the red bottle, it's magic!
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Stuartzickefoose
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| Posted: Mon Apr 30, 2012 12:00 pm Post subject: |
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dude. rename this thread to "lubing up rubber" ....hahahaha 
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MINE - 1978 Westfalia ~ Maisy ~ FI, Hydraulic Valves, Electronic Points, 2.0 (NEED A SET OF HEADS, PM ME IF YOU HAVE A SET)
DAD's - 1972 Westfalia ~ Sticky ~ 1.7(?) 914 motor, allison electronic ignition, electric fuel pump, dual webers w/o choke.
“Don't cry because it's over, smile because it happened.”
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hazetguy
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porschpow
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Joined: May 21, 2005
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Location: Hamilton, NJ / Flanders, NJ
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| Posted: Mon Apr 30, 2012 12:18 pm Post subject: |
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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
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-1973 Volkswagen Bus Westy (Weekender)
1.8 liter from 1.7(original)
-2011 Subaru Outback
-1986 Honda Magna |
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skills@eurocarsplus
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| Posted: Mon Apr 30, 2012 12:20 pm Post subject: |
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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.
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Wildthings
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| Posted: Mon Apr 30, 2012 12:20 pm Post subject: |
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| This is a fine use for WD40. Good old soapy water may work as well, but can cause rust in places. |
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ewdb92
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| Posted: Mon Apr 30, 2012 12:55 pm Post subject: |
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I always had good luck with windex for foam and rubber components (esp the front engine compartment seal)
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Erik
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nathansnathan
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| Posted: Mon Apr 30, 2012 1:41 pm Post subject: |
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| 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. |
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ccpalmer 
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| Posted: Mon Apr 30, 2012 1:48 pm Post subject: |
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| 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...
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RatCamper
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| Posted: Mon Apr 30, 2012 1:50 pm Post subject: |
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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.
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ccpalmer
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| Posted: Mon Apr 30, 2012 1:55 pm Post subject: |
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| 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.
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ewdb92
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| Posted: Mon Apr 30, 2012 2:35 pm Post subject: |
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| 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.
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Erik
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ccpalmer
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| Posted: Mon Apr 30, 2012 2:45 pm Post subject: |
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| 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.
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RatCamper
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Location: Australia
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| Posted: Mon Apr 30, 2012 2:46 pm Post subject: |
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| 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.
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ccpalmer
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Location: Ann Arbor, Michigan
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| Posted: Mon Apr 30, 2012 2:47 pm Post subject: |
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| 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.
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'77 Bay/rusty shed on wheels
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kreemoweet
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| Posted: Mon Apr 30, 2012 3:14 pm Post subject: |
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If the hose is suitable for use with gasoline and its vapors, how could a little grease hurt it?
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Stuartzickefoose
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| Posted: Mon Apr 30, 2012 3:18 pm Post subject: |
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how much was the bushing? a 2 dollar at most piece of rubber? use spit, and if that eats the rubber...buy another one... 
_________________
MINE - 1978 Westfalia ~ Maisy ~ FI, Hydraulic Valves, Electronic Points, 2.0 (NEED A SET OF HEADS, PM ME IF YOU HAVE A SET)
DAD's - 1972 Westfalia ~ Sticky ~ 1.7(?) 914 motor, allison electronic ignition, electric fuel pump, dual webers w/o choke.
“Don't cry because it's over, smile because it happened.”
“Those who mind don't matter, and those who matter don't mind.” |
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mikewire
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Location: Montana
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| Posted: Mon Apr 30, 2012 3:30 pm Post subject: |
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| 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... |
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.
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1972 9 Passenger Deluxe Non-Walkthrough | 2003 Audi A4 Avant 1.8TQT REVO Stage 2 | 2000 VR6 Jetta Bright Green Pearl | 1980 Lago Caddy JH 1.8 CIS
My 1972 Deluxe build thread
www.bigskyeuro.com |
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Stuartzickefoose
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| Posted: Mon Apr 30, 2012 3:31 pm Post subject: |
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| 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... |
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. 
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MINE - 1978 Westfalia ~ Maisy ~ FI, Hydraulic Valves, Electronic Points, 2.0 (NEED A SET OF HEADS, PM ME IF YOU HAVE A SET)
DAD's - 1972 Westfalia ~ Sticky ~ 1.7(?) 914 motor, allison electronic ignition, electric fuel pump, dual webers w/o choke.
“Don't cry because it's over, smile because it happened.”
“Those who mind don't matter, and those who matter don't mind.” |
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