CLASS RACER FORUM - View Single Post - Oil Expander Ends

Adger Smith · 08-15-2011, 11:06 PM

GM spent millions trying to figure that one out. Remember the problems with 307 and 396 oil useage? Ring placement and rotation speed during break in was part of the problem. Some engines rotate the rings at a real slow rate, others faster. The method of placement GM found is now put in every Mahle/CP/Clevite ring box on a little green piece of paper. I could get Real Technical, but for time sake... Just use their little paper. It works.

08-15-2011, 11:06 PM	#10
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,446 Likes: 575 Liked 880 Times in 311 Posts	Re: Oil Expander Ends - Positon/Phasing on Piston Important? GM spent millions trying to figure that one out. Remember the problems with 307 and 396 oil useage? Ring placement and rotation speed during break in was part of the problem. Some engines rotate the rings at a real slow rate, others faster. The method of placement GM found is now put in every Mahle/CP/Clevite ring box on a little green piece of paper. I could get Real Technical, but for time sake... Just use their little paper. It works. __________________ Adger Smith (Former SS)