Do you guys use some type of oil on the wrist pin and crank journal when you reassemble before firing up?
Same with the bearings?
I hope this doesn't open a can of worms but I don't think WD40 will cut it for this application and nitro fuel is corrosive. I don't have quote after-run oil but I have a wide assortment of different viscosities and types around the shop; air tool oil, synthetic tranny fluid, etc.
I was thinking 0-20W synthetic, just a drop so it is not dry on the wrist pin and connecting rod / crank journal.
I am not sure what to use on the bearings?
I got some 0-20W on the piston and liner and had to clean it off because it jacked up the compression too much; I really didn't want it on there but got a thin film and wiped it off but had to follow up with WD-40.
Thanks, Harry