Sealing the rings

[Ibr8k4vetts]

Originally Posted by jeffko

30wt oil or whatever you intend to use in the oil pan.

That is what I would do.

[DAVID GAGNARD]

definetly use the same oil you plan to put in the motor for the intial start-up/break in!!!!!!!!!!!!!!!!!!!!!

David

[stanger2434]

Do engine builders actually dip the entire piston in oil and then stick them in the cylinder?
The best way to make sure that the rings seal (my experience of course) is to make sure that the cylinders are super clean and of course has the correct finish for the rings used. I have always used ATF. After final wash, get all the residue with thinner, I place ATF on a lint free white cloth and saturate it with ATF and wipe out the cylinders and make sure it comes out clean. If not clean again. Leaving a film of ATF in the cylinders. Wipe a small amount around the rings and a spot on each skirt and install. Seals every time.

[DAVID GAGNARD]

Stanger;

Different engine builders do different things, I have seen very few dip the piston in oil, I think that was done "back in the day", don't think many do that anymore.........

Your procedeure with clean bores and ATF is just fine.......

All I do after making sure the bores are perfectly clean is give one, maybe two squirts of motor oil in the bore and smear it around the entire cylinder with my fingers before installing the piston..... I give one squirt on the side of the piston at the rings and then smear it around the piston/skirt.........this way was taught to me by an aircraft mechanic.... his biggest concern was that everything including all the tools (sockets/wrenches) was surgery room clean, and all parts received a light coating of motor oil before assembly....... can't remember any engine he built that had any problems........

David