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  #1  
Old 01-16-2008, 05:40 AM
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teflon tape on oil cooler lines?

I have to replace an oil cooler line and was wondering if I could use high temp (gas rated) tephlon tape? I know a lot of people are going to tell me it's not necessary but the hoses I'm putting in are used and I just wanted to be sure. I am more worried that it would degrade.

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Old 01-16-2008, 07:01 AM
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no. Buy new cooler lines online, replace them the hard way. If there is any partr under the hood to not be cheap on, this is it.



Also, no, you dont need teflon tape. It is a compression fitting, it should not leak.
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Old 01-16-2008, 09:23 AM
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yeah, the last thing you need in your oil cooler is pipe dope/tape... those oil lines are hard enough to install when new and flexible... I wouldn't wanna try it with old hardened lines...
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Old 01-16-2008, 09:32 AM
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maybe the tape would keep the fittings from bonding w/ the threads on the OC?

If you were careful about wrapping, I dont see an issue. but thats just me;P
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  #5  
Old 01-16-2008, 10:31 AM
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Use anti-sieze on the threads, not teftape.
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  #6  
Old 01-16-2008, 10:39 AM
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Quote:
Originally Posted by mobetta View Post
maybe the tape would keep the fittings from bonding w/ the threads on the OC?

If you were careful about wrapping, I dont see an issue. but thats just me;P
Use some brand of Never-Seez on the threads. For the tape to effectivly seal anything it would have to cover the sealing lip/end of the hose or cooler. If you must use something I would think that some thick pasty sealent dabbed carefully on the sealing edges would do the trick. The old school brown non-hardening Permatex would work and and would most likely stay put if some oozed into the oil flow. (By the way the oil from the oil cooler is filtered by the bypass part of the oil filter before it goes back into the oil pan.)
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Last edited by Diesel911; 01-16-2008 at 10:47 AM.
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  #7  
Old 01-16-2008, 01:55 PM
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Quote:
Originally Posted by Chas H View Post
Use anti-sieze on the threads, not teftape.
Ditto.

The oil going through the cooler is not filtered yet so you don't have to worry about anything getting into the oil.
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Old 01-16-2008, 03:03 PM
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You don't need to put anything on the threads, just make sure they are clean.


Used oil cooler lines? They are a huge PITA job to do on that car why would you want to put a part in their that is shot?
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  #9  
Old 01-16-2008, 03:04 PM
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Phorget about using any sort of tape on those threads. Teflon tape is phor plumbing and gas (in your home).

You don't want that anywhere near an oil line, phor phear of small pieces tearing off and entering the oil stream. They could plug a piston oil squirter or something else very bad.
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  #10  
Old 01-16-2008, 07:49 PM
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I've not had a look at the oc lines, but I'm gonna hazard a guess that they are compression type fittings with a flare on one end that seats in the other. No need for any teflon tape, but "never seize" compound might be a good idea. Don't overdo the neverseize (brand name). They are lithium based greases.
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  #11  
Old 01-16-2008, 08:17 PM
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Quote:
Originally Posted by lupin..the..3rd View Post
Phorget about using any sort of tape on those threads. Teflon tape is phor plumbing and gas (in your home).

You don't want that anywhere near an oil line, phor phear of small pieces tearing off and entering the oil stream. They could plug a piston oil squirter or something else very bad.
Given the quality of plumbing fittings, apparently all from China, I have quit using teftape and use pipe dope.
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  #12  
Old 01-18-2008, 05:05 PM
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Quote:
Originally Posted by lupin..the..3rd View Post
Phorget about using any sort of tape on those threads. Teflon tape is phor plumbing and gas (in your home).

You don't want that anywhere near an oil line, phor phear of small pieces tearing off and entering the oil stream. They could plug a piston oil squirter or something else very bad.
The oil returning from the oil cooler goes through the oil filter before it goes anywhere else.

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