G6 at Snook, TX
Well-known Member
I need to replace the drain petcocks on the 8n radiator and block. What is the consensus nowadays to apply to the threads? Teflon tape? Indian Head Shellac? Other?
- Thread starter G6 at Snook, TX
- Start date
Ultradog MN
Well-known Member
- Location
- Twin Cities
It is a very low pressure system so most
anything will work. I generally like to use
pipe dope around tractors as teflon tape is
more likely to get into somewhere it
shouldn't.
anything will work. I generally like to use
pipe dope around tractors as teflon tape is
more likely to get into somewhere it
shouldn't.
Tim PloughNman Daley RIP
Well-known Member
You don't need any puckey stuff on a petcock. The original didn't use anything. Don't use Teflon tape on anything on a tractor. Several years ago I found a product called GASOILA-E for a superior sealant like on the Sediment Bulb into fuel tank. It should work on a petcock if you insist on using anything otherwise leave it as is. Petcock uses an NPT thread. If you have leaks, something else is wrong like somebody tried chasing radiator with wrong thread/tap size.
GASOILA E-SEAL - THREAD SEALANT - EXCELLENT FOR GAS:
Tim Daley(MI)
GASOILA E-SEAL - THREAD SEALANT - EXCELLENT FOR GAS:
Tim Daley(MI)
Richard G.
Well-known Member
I use Blue Monster sealer for everything including propane fittings.
Get it at Lowes.
Get it at Lowes.
Agree, little to no pressure and coolant will eventually create a seal on its own.
Though, NPT does indeed require sealant of some sort to be leak free. These threads are not leak free under pressure.
NPTF will be leak free, but I still use pipe dope, more as a lubricant than a sealer
G6 at Snook, TX
Well-known Member
I ended up using Indian Head Shellac. Let it set and cure overnight, and put in the Prestone yesterday afternoon. All seems good. (FYI, the previous owner used teflon tape.)
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