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Old September 30th, 2008, 08:15 PM   #1
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Default sealing threads

i have a Transdapt remote oil filter system on a v8. The kit is great, but i'm having problems with leaks at the threads where the fittings screw into the block adaptor. Teflon tape has FAILED so far..can somebody give me some advice on what to use?
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Old September 30th, 2008, 08:21 PM   #2
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Go to a plumbing supply and get some "Gimme the green stuff" pipe dope.
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Old September 30th, 2008, 08:33 PM   #3
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JB weld, works great for spark plugs.
so one guy said
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Old September 30th, 2008, 08:47 PM   #4
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Originally Posted by curt1656 View Post
Go to a plumbing supply and get some "Gimme the green stuff" pipe dope.
isn't this a household pipe sealant? Ive tried some plumbing dope yellow but it sucks..ive heard Permatex thread sealant is good. Any experiences?
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Old September 30th, 2008, 08:50 PM   #5
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Are they AN Fittings?
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Old September 30th, 2008, 08:50 PM   #6
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My guess is that you are using pipe threads in a hole that has tube threads or the other way around. Ask me how I know about this.
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Old September 30th, 2008, 09:04 PM   #7
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Are they AN Fittings?
no, barbs with rubber hose and clamps
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Old September 30th, 2008, 09:05 PM   #8
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My guess is that you are using pipe threads in a hole that has tube threads or the other way around. Ask me how I know about this.
hmm..
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Old September 30th, 2008, 09:47 PM   #9
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try different fittings. I have one of these remote set-ups on my V8 ranger and it hasn't leaked yet. I bought the 2 blocks from summit separate and got my own brass fittings from an idustrial plumbing supply store and they have never let me down. The problem with some fittings, especially the cheapos that those kits come with, is that a lot of the time the taper is off or the actual OD of the thread is smaller than it should be. This allows the fitting to thread all the way to the end of the threads and never make a seal. The other thing you might have going on is that if the block isn't new, the person before you may have overtightened the fitting before and opened the hole up a little.

BTW, they are pipe threads if you are using the permacool kit.:) 3/8 NPT if I am remembering correctly.
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Old September 30th, 2008, 09:50 PM   #10
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Try using the liquid teflon sealant..
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Old September 30th, 2008, 09:51 PM   #11
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try different fittings. I have one of these remote set-ups on my V8 ranger and it hasn't leaked yet. I bought the 2 blocks from summit separate and got my own brass fittings from an idustrial plumbing supply store and they have never let me down. The problem with some fittings, especially the cheapos that those kits come with, is that a lot of the time the taper is off or the actual OD of the thread is smaller than it should be. This allows the fitting to thread all the way to the end of the threads and never make a seal. The other thing you might have going on is that if the block isn't new, the person before you may have overtightened the fitting before and opened the hole up a little.

BTW, they are pipe threads if you are using the permacool kit.:) 3/8 NPT if I am remembering correctly.
i got the transdapt kit. I went out to brinkers plumbing supply and bought new fittings, not the cheapos. I firmly think the sealint that i am using is the wrong type. Im going to try Permatex thread sealant tomorrow.
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Old October 1st, 2008, 06:49 PM   #12
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what I did was use Permatex thread sealer, then wrapped teflon tape around it then a coat of sealer. Apparently it takes 4 hours to cure, 72 hours to dry all the way Its been 8 hours so far..should i wait the full 72 hours?
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Old October 2nd, 2008, 05:05 PM   #13
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if it dont work try hylomar. permatex and other companys make it. ive used it ot seal many bolts. works good on head bolts going into a water jacket.
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Old October 2nd, 2008, 05:07 PM   #14
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if it dont work try hylomar. permatex and other companys make it. ive used it ot seal many bolts. works good on head bolts going into a water jacket.
thanks. So far the method i used hasnt leaked at all. We will see..
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Old October 6th, 2008, 08:40 PM   #15
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the teflon paste + 2 wraps of tape worked good no leaks there...

I do still have a leak tho. Right where the ruber hoses clamp to the barbed fittings i cant seem to get it to stop leaking. Any tips on what to do? I was told to just get hydraulic -8AN hoses made..but thats way out of my price range right now.
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Old October 6th, 2008, 10:58 PM   #16
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use red loctite on the barbed fitting...it will make the hose swell slightly, and then the loctite will cure and swell slightly also...I do this with all barbed fittings, and never have any leaks that way...

or you can find some fittings to go from NPT to a double flared, and make steel lines for the whole thing (brake lines)
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