permatex 2400 degree antisneeze

[1000MileStylez]

ok a while back i posted about the headers i built and that i was going to do a test on permatex high temp antisieze on the wastegate valve. I was going to take video and post it on youtube but there actually isnt any need for that. my results were not suprizing.

I put the antisieze on the stem of the valve. brought it up to about 1500 degrees indirect heat. The moister dripped down the stem and evaporated. and the result was a crust on the stem that would cause the valve to lock cause some serious issues. so in conclusion nothing is good for lubricating the wastegate valve stem. not yet anyways....

 

[bison]

Remove the swing valve assembly and ream the hole out so its got some slop like the stock one. The engineers designed it that way on purpose. Ive never had or have seen a stock swing valve assembly seize. I dont need to wonder why either.

 

[1000MileStylez]

ohhh im sorry. i did this test on an external wastegate.....

 

[bison]

ohhh im sorry. i did this test on an external wastegate.....

OK. What is the gate in question? Did it bind previous to the anti-seize? Ive ran Racegates over the years and never had one that seized. All leaked boost around the stem though

 

[1000MileStylez]

well i have seen posts here and there about people wanting to know if the stem can be lubricated and the imidiate answer was no from replies. So i wanted to do a test of my own and came up with the same results. it probably leaks over time from metal on metal contact with lack of lubrication. but there isnt any that can hold up to the heat with out crusting up.

 

[bison]

well i have seen posts here and there about people wanting to know if the stem can be lubricated and the imidiate answer was no from replies. So i wanted to do a test of my own and came up with the same results. it probably leaks over time from metal on metal contact with lack of lubrication. but there isnt any that can hold up to the heat with out crusting up.

There is no way to get a totally positive seal on the valve stem because any type of lip seal would just burn