Plumbers Tape on Diff Fill Bolt - M.net question
#1
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Plumbers Tape on Diff Fill Bolt - M.net question
Does anyone foresee any problems that may be encountered w/ this? I see a slow leak from a poorly helicoiled fill bolt that's stripped. It can tighten but eventually loosens if given enough torque. I don't think the diff gets very hot where it will burn off the tape, right? I was thinking first:
1) plumber's tape
then
2) oversized bolt
then
3) JB welding it
Would prefer trying the most conservative then going on to other things right now.
1) plumber's tape
then
2) oversized bolt
then
3) JB welding it
Would prefer trying the most conservative then going on to other things right now.
#3
Is it a wound wire-type heli-coil or one of the solid machined type? If it is the wire, it still may leak if it leaks on the "outside" of the helicoil. It may mot be leaking on the "inside" where you will be taping it.
That being the case, teflon tape should be fine. There is a "pink" tape that handles a higher heat and more chemicals than the generic stuff.
That being the case, teflon tape should be fine. There is a "pink" tape that handles a higher heat and more chemicals than the generic stuff.
#4
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Is it a wound wire-type heli-coil or one of the solid machined type? If it is the wire, it still may leak if it leaks on the "outside" of the helicoil. It may mot be leaking on the "inside" where you will be taping it.
That being the case, teflon tape should be fine. There is a "pink" tape that handles a higher heat and more chemicals than the generic stuff.
That being the case, teflon tape should be fine. There is a "pink" tape that handles a higher heat and more chemicals than the generic stuff.
Thanks for the info guys.
#6
they also make a liquid teflon tape, if you can find that in the petroleum resistant flavor i'd try it before anything else.
and (brain 8-18-08) i'll add this because i'm told it's a common problem; if you use tape make sure you wrap it in the direction of the threads. if you don't it will more or less fight to come out as you put the bolt/plug in and won't seal as well.
and (brain 8-18-08) i'll add this because i'm told it's a common problem; if you use tape make sure you wrap it in the direction of the threads. if you don't it will more or less fight to come out as you put the bolt/plug in and won't seal as well.
Last edited by Braineack; 08-18-2008 at 09:09 PM. Reason: 'cause | clean up
#9
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After reading up on some things, I've changed my mind. Forget the teflon.
For a stripped differential fill hole, is it better to use:
1) Permatex Thread Sealer
or
2) Permatex Threadlocker Red
For a stripped differential fill hole, is it better to use:
1) Permatex Thread Sealer
or
2) Permatex Threadlocker Red
#10
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Threadlocker is to hold in a bolt to prevent loosening. Thread sealer is to prevent leaks, but is intended for intact threads.
If your threads are fooked, you can try the sealer, but if it's stripped, it still may not hold. Have it drilled and tapped out for an insert (helicoil is a brand, there are others), or make an adapter; i.e. the hole is drilled and tapped for a larger thread, the insert/adapter is put in with threadlocker (or JB Weld), and the plug is put in the insert/adapter with sealant.
If your threads are fooked, you can try the sealer, but if it's stripped, it still may not hold. Have it drilled and tapped out for an insert (helicoil is a brand, there are others), or make an adapter; i.e. the hole is drilled and tapped for a larger thread, the insert/adapter is put in with threadlocker (or JB Weld), and the plug is put in the insert/adapter with sealant.
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