Moly grease for flat tappet cam break-in?

Moly grease for flat tappet cam break-in?

Author
Discussion

ian_uk1975

Original Poster:

1,189 posts

204 months

Monday 30th June 2008
quotequote all
I'm having trouble obtaining moly paste. However, I have a big 500g tub of moly grease in the garage. It's dark grey in colour and is lithium and moly based. Could I safely use this on my cam lobes and lifter faces? Is this basically the same stuff as 'cam lube'?

Thanks,
Ian.

ian_uk1975

Original Poster:

1,189 posts

204 months

Monday 30th June 2008
quotequote all
stevieturbo said:
Torco do an engine building lube...most cam lube type substances are like heavy gear oil.
Yea, I'm familiar with all the common lubes (Torco, Piper, Kent, ARP, Redline, etc, etc). However, I want to know if using moly grease in a lithium-based carrier will do the same thing. The moly is the key as it's an EP lube. Moly grease is dark grey, so must have a relatively high concentration of molybdenum disulphide in it. Just wondering if anyone has actually used it for cam break-in, or is knowledgable enough on materials and chemistry to advise.

ian_uk1975

Original Poster:

1,189 posts

204 months

Tuesday 1st July 2008
quotequote all
350Matt said:
I'd avoid using the moly grease if I were you, we used to use it at Cosworth on the F1 builds and it does a great job of protecting cam lobes on start up etc but all teh moly drops out into the oil and you end up with big lumps of the stuff collected around the engine , ideal for clogging samll squirt jets etc.

I'd stick to either proper cam lube or EP90 gear oil

Matt
Thanks Matt. Out of interest, were you using plain old moly GREASE (ie. the lithium/moly stuff that you get in big tubs as opposed to small tubes? I believe it's normally used for CV joints, etc)?