I’m finding the stud very tight to fit in and was going to clean out the threads and maybe try some ptfe on the thread ? Or some Loctite.
Any ideas please ?
Edited by sam138, 24 May 2019 - 06:31 AM.
Posted 24 May 2019 - 06:30 AM
Edited by sam138, 24 May 2019 - 06:31 AM.
Posted 24 May 2019 - 08:47 AM
I've never seen them leak via the stub hole before, I suspect it's the thermostat housing gasket that's weeping. Make sure both the mating surfaces are clean and reasonably flat. If needed buy a new gasket.
Running a 5/16 UNC bottom tap through the holes in the head & re-assemble with a new gasket before even considering PTFE or loctite
Posted 24 May 2019 - 09:04 AM
leaks up the studs is usually damage. either to the gasket, head or housing.
pull it and check the gasket and the housing.
Posted 24 May 2019 - 09:06 AM
If the hole goes through to the water jacket they can leak up the threads. Loctite would be my preferred fix.
Posted 24 May 2019 - 03:34 PM
Posted 24 May 2019 - 07:55 PM
It maybe leaking up the thread, but more usually, I find it's across the gasket here. There's only a small profile of gasket material between the T'stat and the stud and being what it is, that mating faces are seldom ideal. I find some RTV sealant usually works, but you'll also want to be sure the faces of the head and housing and flat and clean.
Posted 24 May 2019 - 08:33 PM
Posted 24 May 2019 - 09:50 PM
The three holes in minispares thermostat housings are almost 3/8" and get very close to the edge of the thermostat.
I have found that, having inserted the thermostat, I need to put a wodge of sealant on top of the gasket, round the bottom of the studs before fitting the housing and squidging sealant up the studs.
Posted 25 May 2019 - 06:39 AM
0 members, 0 guests, 0 anonymous users