lower oil cooler line leak- remove the hose of entire block assembly

[billschroeder5842]

I've developed a small oil leak from the lower oil cooler hose where the fitting attaches to the block that fits on the cooler.

To get a perfect, no leak seal, is it better to remove the lower hose (leaving the upper hose and block attached) or to remove the block from the cooler and then remove the lower hose. Would a teflon around the threads make a difference?

Thanks!

[secondchance]

Are you running non-OEM piece? Made up with AN fittings and stainless steel braided lines?

[billschroeder5842]

Its a Jerry's piece. I had zero issues with it, but had a shop do some work and they removed the lines as part of a radiator repair. I'm guessing that they reinstalled it wrong.

[secondchance]

Its a Jerry's piece. I had zero issues with it, but had a shop do some work and they removed the lines as part of a radiator repair. I'm guessing that they reinstalled it wrong.

If it is leaking through the thread, first, I would check and see if the fitting is loose. Tighten it a smidge.
If it continues to seep, I would remove the offending hose and try teflon tape and see if it solves the problem.

[A26B]

Checking tightness and tightening a bit should take care of it unless the AN tapered metal to metal seal has been damaged. I don't recommend putting any type of sealant or tape on the AN fitting nut. Those threads are not meant to seal & would probably just move the leak to the rear of the nut. If the Oil Cooler Adapter Block has been damaged, it can be replaced.

[secondchance]

Checking tightness and tightening a bit should take care of it unless the AN tapered metal to metal seal has been damaged. I don't recommend putting any type of sealant or tape on the AN fitting nut. Those threads are not meant to seal & would probably just move the leak to the rear of the nut. If the Oil Cooler Adapter Block has been damaged, it can be replaced.

I stand corrected.
Hi, Jerry! Hope all's been well.

[A26B]

I stand corrected.
Hi, Jerry! Hope all's been well.

Nah,I agree with you on the tightening.

All is well here, still trying to get the new shop organized & looking professional but sooo many other chores seem to get in the way. I need a small army of helpers to catch up. Trouble is, I am told that I am a perfectionist so have to do it all myself. :rolleyes:

How are things with you? Have a great 4th of July!!:fahne:

[secondchance]

Nah,I agree with you on the tightening.

All is well here, still trying to get the new shop organized & looking professional but sooo many other chores seem to get in the way. I need a small army of helpers to catch up. Trouble is, I am told that I am a perfectionist so have to do it all myself. :rolleyes:

How are things with you? Have a great 4th of July!!:fahne:

All good! I spliced in a pair of Spall fans and couldn't be happier with the result.
Happy 4th!

[billschroeder5842]

Checking tightness and tightening a bit should take care of it unless the AN tapered metal to metal seal has been damaged. I don't recommend putting any type of sealant or tape on the AN fitting nut. Those threads are not meant to seal & would probably just move the leak to the rear of the nut. If the Oil Cooler Adapter Block has been damaged, it can be replaced.

Thanks Jerry- Looks like I have my project for the holiday figured out. I'll do a (more in depth) inspection and figure out where the leak is actually coming from. I ran my finger under the lower fitting and got about 1 1/2 drops on my finger after a 40 mile run. I'm not sure if it is the threads of the adapter block?

[Marc Haibeck]

Sometimes a car comes to me with a small leak on the fitting that goes to the oil cooler block. The fittings are tight but maybe not tight enough. I remove the entire assembly from the car and hold the block in a bench vise. Then I can easily tighten the fittings.

[billschroeder5842]

Sometimes a car comes to me with a small leak on the fitting that goes to the oil cooler block. The fittings are tight but maybe not tight enough. I remove the entire assembly from the car and hold the block in a bench vise. Then I can easily tighten the fittings.

Thanks Marc- absolutely worth considering. I just drove it about 20 mines, so I'll let her cool abit before I get after it.

[billschroeder5842]

I don't recommend putting any type of sealant or tape on the AN fitting nut. Those threads are not meant to seal & would probably just move the leak to the rear of the nut.

Thanks Jerry--I fiddled with the lower hose as it was leaking near the rear of the nut. I DID find the residue of some teflon sealant that I must have put on a few years ago during install. I cleaned up everything and tightened with zero tape this time- I got abound an extra 1/8 turn. Hope this does the trick.

Thanks Jerry