Coolant Filter Leaking
Hotshot
Joined: Dec 2014
Posts: 17,833
Likes: 3,121
From: Jersey Shore
You've been screwing around with this for too long.
We had to install piping on not only our in house test vehicles but in fleet operations that we monitored. The one thing we didn't need is a brake failure for something we installed. A few decades back our Swageloc sales person turned us onto this product and it works very well, although expensive. I also now use it personally on hydraulic equipment that runs in the 2000psi range. Used it brake fluid, hydraulic oil, coolant (my filtration), and all types of air brake situations.
Your female tapered thread may be too big, your male thread too short, whatever, this will seal it if you install it on cleaned surfaces. It's disadvantage, like all Loctite products, it's a thread locker, and it's expensive. You have to work to get it apart once it sets.
Loctite 567
McMaster-Carr
We had to install piping on not only our in house test vehicles but in fleet operations that we monitored. The one thing we didn't need is a brake failure for something we installed. A few decades back our Swageloc sales person turned us onto this product and it works very well, although expensive. I also now use it personally on hydraulic equipment that runs in the 2000psi range. Used it brake fluid, hydraulic oil, coolant (my filtration), and all types of air brake situations.
Your female tapered thread may be too big, your male thread too short, whatever, this will seal it if you install it on cleaned surfaces. It's disadvantage, like all Loctite products, it's a thread locker, and it's expensive. You have to work to get it apart once it sets.
Loctite 567
McMaster-Carr
Thread Starter
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Fleet Mechanic
Joined: Oct 2012
Posts: 1,558
Likes: 26
From: Bay Area
Expensive? Try loosing a gallon of coolant draining the filter not to mention the time to do the job. Add more insult to injury, I paid the shipping back to IPR to test the unit!
I have spent over $100 on thread sealant, coolant, shipping, hose clamps, and barbed fittings. I was crabby with kids, wife, and parents.
And guess what? It still leaks!
Hotshot
Joined: Dec 2014
Posts: 17,833
Likes: 3,121
From: Jersey Shore
I would have replaced those ball valves a long time ago rather then dealing with the issue.
As Scott noted, it's hard to tell without being there if the leak is from the pipe threads into the block, into the valve, the special nipple fitting that could very well be a straight, non sealing thread, or the gland. Your observation that heat expansion very well may be a factor, so just dead ending with compressed air may not have showed the issue at IPR.
Teflon tape, although I do use it on occasion, is a product that mashes into nothing in tapered pipe threads, and does nothing if your trying to seal a straight thread connection, as those are designed to seal on the bottoming surface, typically at the hex.
If that leak is at a straight thread connection, then even the Loctite product I pointed to would not necessarily do the job.
As Scott noted, it's hard to tell without being there if the leak is from the pipe threads into the block, into the valve, the special nipple fitting that could very well be a straight, non sealing thread, or the gland. Your observation that heat expansion very well may be a factor, so just dead ending with compressed air may not have showed the issue at IPR.
Teflon tape, although I do use it on occasion, is a product that mashes into nothing in tapered pipe threads, and does nothing if your trying to seal a straight thread connection, as those are designed to seal on the bottoming surface, typically at the hex.
If that leak is at a straight thread connection, then even the Loctite product I pointed to would not necessarily do the job.
Fleet Owner
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
That point there is BS. I would be done with them. Did you happen to pay with a credit card?
It may be time to get them to help solve this issue.
Sean <BR>
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