Re-Fitting Injectors - Best Practice?

[Uncle G]

Ceramic grease?


I haven't used it on injectors, but I have on brakes. It seems very good. Higher melting point than copper grease - and non-metallic. So no possible electrolytic problems.


Something like this:


https://www.amazon.co.uk/SILVERHOOK-.../dp/B007D3H5G4

[Cadence]

Originally Posted by foufou

What about molybdenum disulphide? A anti-sieze around for decades

Isn't that trade name MolyLube?

[a64pilot]

Originally Posted by Cadence

Isn't that trade name MolyLube?

May be, a lot of people call it moly be damn, cause we can’t pronounce it.
I thought however it was a high pressure lubricant, it’s used in high temp and high pressure greases like CV joints.
For some reason I want to think it’s slightly corrosive. I have used it in powder form to lube a weapons system in the desert, cause anything oily attracted sand and that quickly became like valve grinding compound.

I hand load high velocity rounds for my 22-250 and 204 Ruger and use moly coated bullets to help prevent barrel wear.

[Compass790]

Originally Posted by Wotname

I had a look at the copper Never Seize can, says it good for 980C or 1800F! Maybe I should try it; on the sides, not the seat / nozzle.

Yea coppercote or nickel anti-seize on the sides would be fine. Nickel anti-seize I've used a lot on exhaust bolts. Its the sides that cause the problem in that Yanmar, so close a fit a bit of rust & they jam. Never heard of ceramic grease but that should be high temp too.

[Uncle G]

Originally Posted by Compass790

Yea coppercote or nickel anti-seize on the sides would be fine. Nickel anti-seize I've used a lot on exhaust bolts. Its the sides that cause the problem in that Yanmar, so close a fit a bit of rust & they jam. Never heard of ceramic grease but that should be high temp too.

Ceramic grease is OK up to 1500 degrees Celsius. (2732 degF)