teflon tape on senders
10-10-2005 | 07:45 AM
#1
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From: McHenry IL /Duck Key FL
teflon tape on senders
I have a small leak in my oil pressure sendermounting and was always leary of using teflon tape on it do to the fact the ground for it is through the threads
How are trhese threads typically sealed?
Klaw
How are trhese threads typically sealed?
Klaw
10-10-2005 | 07:56 AM
#2
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From: central NY
Re: teflon tape on senders
I like the teflon paste. It lubes the threads as good as the tape does, and also seals well. Plus ya don't have to worry about getting little pieces of tape in the system, if you disassemble.
Either way, I keep the paste or tape back a couple of threads from the end so it does not get introduced into the system I'm using it on.
Either way, I keep the paste or tape back a couple of threads from the end so it does not get introduced into the system I'm using it on.
10-10-2005 | 10:11 AM
#3
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From: 29°50'49.74"N 95° 5'17.55"W.......TEXAS
Re: teflon tape on senders
Originally Posted by klaw
I have a small leak in my oil pressure sendermounting and was always leary of using teflon tape on it do to the fact the ground for it is through the threads
How are trhese threads typically sealed?
Klaw
How are trhese threads typically sealed?
Klaw
10-10-2005 | 04:01 PM
#4
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From: FINGER LAKES N.Y.
Re: teflon tape on senders
I just put mine back together dry. Why, because for the same reason you ask about. I had a problem with my oil gauge and changed the sender, same problem, bought a new gauge from livorsi and same problem. It all came down to tape and or paste on the threads. removed tape and paste and everything is fine. and no leaks.
10-10-2005 | 04:09 PM
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From: Providence,RI
Re: teflon tape on senders
Originally Posted by carney
I just put mine back together dry. Why, because for the same reason you ask about. I had a problem with my oil gauge and changed the sender, same problem, bought a new gauge from livorsi and same problem. It all came down to tape and or paste on the threads. removed tape and paste and everything is fine. and no leaks.
What problems were you having Erratic readings?
10-10-2005 | 06:22 PM
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Re: teflon tape on senders
Originally Posted by Stingray69
have you put a wrench on it lately?
I like dry, because of continuity, but if you have tightened it and it still is leaking, pull it, look both threads over, maybe wire brush the sender or threadfile and LIGHTLY thread in a NPT tap of correct nominal dimension. Try again to install dry. Should work. If not, screw it, use teflon sealer goop on it, and see with meter if you are having resistance in between sender body and it's mounting location (intake or thermo housing).
Resistance in joint between sender and component will cause inaccurate readings. Also check the component, (intake or thermo housing) and the head to see if getting good connection thru motor. thermo housings can be poorly grounded to intake. Sealer on threads of intake bolts can cause poor continuity of intake to heads.
I like dry, because of continuity, but if you have tightened it and it still is leaking, pull it, look both threads over, maybe wire brush the sender or threadfile and LIGHTLY thread in a NPT tap of correct nominal dimension. Try again to install dry. Should work. If not, screw it, use teflon sealer goop on it, and see with meter if you are having resistance in between sender body and it's mounting location (intake or thermo housing).
Resistance in joint between sender and component will cause inaccurate readings. Also check the component, (intake or thermo housing) and the head to see if getting good connection thru motor. thermo housings can be poorly grounded to intake. Sealer on threads of intake bolts can cause poor continuity of intake to heads.
10-10-2005 | 09:53 PM
#7
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From: Cedar Creek, TX
Re: teflon tape on senders
What I do is clean the threads thuroughly (wire brush and tap), then apply a then bead of siliconearound the threads on the sender near the top of the threads (the last few threads that screw into the hole), that way you have a dry clean contact area for 2/3 or so of the thread surface with sealant on just the last few threads in case something leaks by. I have also noticed that some of the GM OEM sensors are done this way as well (except they use the dried on sealer about half way up the threads).
10-12-2005 | 07:52 AM
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From: FINGER LAKES N.Y.
Re: teflon tape on senders
Originally Posted by caveman
What problems were you having Erratic readings?
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