-
FE TALK
(
http://www.clubcobra.com/forums/fe-talk/)
| patrickt |
04-07-2013 01:26 PM |
Why Would This Occur? Oil Permeating Through PCV Hose
She came out of her hermetically sealed bag today after six months of sleeping. Nothing unusual except the outside of the PCV hose was covered in oil droplets. This exact same thing happened last year, so I was curious to see if it happened again. Now the desiccant in the bag keeps the air quite dry inside the bag, and sometimes the temps get chilly inside the garage. The hose was dry as a bone when I zipped her up six months ago. Why would this occur?
http://www.clubcobra.com/photopost/d...ermeate001.jpg |
thats weird....does the hose actually say its fuel or oil rated?
i guess by your post all year in the driving season it doesn't do that?
is it all oil or is there some water there? it looks waterish......
|
| A98Coupe |
04-07-2013 01:46 PM |
That sure does look like water droplets. Oil would not sit in droplet form on the hose because oil has no surface tension - unlike water. Also, judging by the red/brown colour of the steel AN plug in the inlet manifold, I would say that you have had some condensation at some stage during the winter. What kind of storage system are you using - Carcoon or similar? Does it have a good circulation of air? If not, I would forget the plastic bag and use a decent cotton sheet which will allow the air to circulate freely.
|
| patrickt |
04-07-2013 02:07 PM |
I know it looks watery, but it's pure oil. I wiped it with a clean white paper, tasted it, smelled it, and felt it. It is absolutely oil. And there wasn't a sign of moisture anywhere else, and I inspected her from nose to toes.
|
| patrickt |
04-07-2013 02:09 PM |
... and the rusty spots on my engine all come from the driving season. Inside the bag with the desiccant I don't even get a spot of surface rust on the rotors.
|
| vector1 |
04-07-2013 03:47 PM |
i had a pcv hose on the 351 do the same thing, looked the same. don't know if it was rated correctly, probably just some coolant hose i had handy.
|
| ERA Chas |
04-07-2013 03:50 PM |
I used 3/8" fuel hose and had no oil (OR water) condensation. It may be permeating that particular type of hose. Try to replace with an oil hose like for transmission fluid coolers.
|
| patrickt |
04-07-2013 04:21 PM |
Quote:
Originally Posted by vector1
(Post 1238910)
i had a pcv hose on the 351 do the same thing, looked the same. don't know if it was rated correctly, probably just some coolant hose i had handy.
|
Quote:
Originally Posted by ERA Chas
(Post 1238911)
I used 3/8" fuel hose and had no oil (OR water) condensation. It may be permeating that particular type of hose. Try to replace with an oil hose like for transmission fluid coolers.
|
Yes, I believe this is just "basement hose." Meaning, it's a no-name, no-rating type black hose that you find in an old box of auto parts in your basement. |
| ERA Chas |
04-07-2013 05:16 PM |
Quote:
Originally Posted by patrickt
(Post 1238913)
Yes, I believe this is just "basement hose." Meaning, it's a no-name, no-rating type black hose that you find in an old box of auto parts in your basement.
|
Is this the same guy that has a $200 bore scope and million expensive scan /test /analyze baubles??:o |
| olddog |
04-07-2013 05:40 PM |
I suspect the hose is degrading and the oily substance is coming from the material the hose is made from, possibly from the environment created by the bag and desiccant.
If so, there are some nasty cancer causing chemicals in the oil that you let soak into your skin. You may want to wear latex gloves, when handling mister happy, for a few weeks. :eek:
|
| patrickt |
04-07-2013 05:42 PM |
Quote:
Originally Posted by ERA Chas
(Post 1238924)
Is this the same guy that has a $200 bore scope and million expensive scan /test /analyze baubles??:o
|
Uhhhhh, maybe.:o I guess what happens is that the rubber becomes saturated with oil, and then maybe the temperature drops, the rubber contracts, thus forcing small droplets of oil out to the surface. |
| patrickt |
04-07-2013 05:45 PM |
Quote:
Originally Posted by olddog
(Post 1238925)
I You may want to wear latex gloves, when handling mister happy, for a few weeks. :eek:
|
Hmmmmm.... I'm thinking over the possibilities.:LOL: |
| olddog |
04-07-2013 05:51 PM |
I have seen rubber coated rolls experience a type of chemical reaction and a similar liquid show up on the surface.
The heat and air movement when the car is in use most likely allows it to dissipate as fast as it shows up. When you seal it all up for 6 months it allows it to accumulate. Although it is also possible that there is some chemical reaction going on with something due to the bag.
Seriously I would not get any more on my skin.
|
| scottj |
04-07-2013 06:07 PM |
Effusion... normal when using rubber hose with oil or gasoline. It's the same thing that's occurring when people smell gasoline in the garage and it turns out to be coming from the hoses.
|
| ERA Chas |
04-07-2013 06:11 PM |
Quote:
Originally Posted by patrickt
(Post 1238926)
Uhhhhh, maybe.:o I guess what happens is that the rubber becomes saturated with oil, and then maybe the temperature drops, the rubber contracts, thus forcing small droplets of oil out to the surface.
|
'Basement hose'-this is right up there with your advocacy of screen-door spring for a clutch return for some poor guy....:LOL:
And I ain't touchin' (pun intended) olddog's advice about genital hygiene... :MECOOL: |
| patrickt |
04-07-2013 06:24 PM |
Quote:
Originally Posted by ERA Chas
(Post 1238936)
'Basement hose'-this is right up there with your advocacy of screen-door spring for a clutch return for some poor guy....:LOL:
And I ain't touchin' (pun intended) olddog's advice about genital hygiene... :MECOOL:
|
Basement hose, screen door springs... yessirreee, the finest advice money can buy.:cool: |
| RodKnock |
04-07-2013 06:52 PM |
Quote:
Originally Posted by patrickt
(Post 1238913)
Yes, I believe this is just "basement hose." Meaning, it's a no-name, no-rating type black hose that you find in an old box of auto parts in your basement.
|
Then what is the point of this thread? :confused:
Chas is right. Just another opportunity to boost your post count. :( |
| Rick Parker |
04-07-2013 08:24 PM |
Is it an Emissions rated hose? That is what is required for that application. But you knew that right?
|
| patrickt |
04-08-2013 04:47 AM |
Quote:
Originally Posted by Rick Parker
(Post 1238962)
Is it an Emissions rated hose? That is what is required for that application. But you knew that right?
|
Well, perhaps if I were taking a quiz. I just found it curious that a bone dry hose would leech oil through it when parked for a few months. I suppose it's doing that all the time and the air just blows it off.%/ |
| patrickt |
04-10-2013 09:05 AM |
What it was...
Well, I pulled it off and it turns out it's Gates® Adapta Flex™ General Purpose Hose -- the spec sheet on it says that it has "RMA (Class C) limited oil resistance." So, la di da... I'll upgrade it to emissions quality stuff.
|
| All times are GMT -7. The time now is 05:42 AM. |
|
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link:
