I replaced a coolant hose, this is one of those 3/8 - 1/2 braided hoses with threaded ends, something you would see connect to a fuel filter, but it has coolant running through it.
It's tight as I can get it with the wrench, but I have coolant that has a small drip coming out. What can I use to seal the threads to stop the coolant from leaking? Thanks.
Threaded coolant hose leaking...what to seal the threads with?
Discussion in 'Trucks [ Eighteen Wheelers ]' started by allisonisatranny, Mar 22, 2020.
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Works way better than thread tape....also helps with disassembly laterSwine hauler, D.Tibbitt, SAR and 4 others Thank this. -
Wierd.
I've never had any luck with the paste.
I always use the tape. Never had a leak.
But yes . Pipe thread always requires some sort of sealer before threading together.Swine hauler, D.Tibbitt, SAR and 1 other person Thank this. -
What would be the best pipe thread to use? Something standard from the local hardware store? I hate having to drain the coolant, I'd rather make sure I do it right the first time.
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I read the reviews on Google on that Harvey TFE paste, half were not very good.
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wore out Thanks this.
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It's all I have ever used...thing about reviews is you have to ask if the person writing it was smart enough to use the product to begin with. Whether you use paste or tape the threads inside and out must be absolutely clean....that's where most fall short
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@wore out is correct that it needs to be clean. Quick trip over wire wheel does wonders.
Now this is all I have ever used. But it's more the TFE. The stuff from you house hold supply story dont normally have it and is for stationary house hold water pipes. The junk that never dries.
Added, never leave the lid off, and never leave a bottle of it between your drives while working. Unless you like cleaning up a huge fricken mess. It was the hugh bottle, not 4oz..Goodysnap, Swine hauler, D.Tibbitt and 5 others Thank this. -
We use this stuff.
Swine hauler, D.Tibbitt, jamespmack and 2 others Thank this. -
Some those brass ones will snap off at a bad time while driving, use gal. steel or stainless if you can find one in that size?
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