I don't know the correct cylinder numbers so I will describe their placement as viewed from the engine's rear. I will call them Top Left (TL), Bottom Left (BL), Top Right (TR), and Bottom Right (BR).
I measured compression only cold last year, and cold and hot this year.
2010 cold compression TL 150 lb, BL 145 lb, TR 150 lb, BL 140 lb
2011 cold compression TL 150 lb, BL 135 lb, TR 150 lb, BR 140 lb
2011 hot compression TL 142 lb, BL 128 lb, TR 142 lb, BR 148 lb
I am concerned about the drop in the BL from 2010 - 2011 and the rise in the BR cold to hot.
I think this is more of a "keep an eye on the numbers" issue than it is
"it's got to be rebuilt for sure" issue. It runs strong. Your opinions?
I measured compression only cold last year, and cold and hot this year.
2010 cold compression TL 150 lb, BL 145 lb, TR 150 lb, BL 140 lb
2011 cold compression TL 150 lb, BL 135 lb, TR 150 lb, BR 140 lb
2011 hot compression TL 142 lb, BL 128 lb, TR 142 lb, BR 148 lb
I am concerned about the drop in the BL from 2010 - 2011 and the rise in the BR cold to hot.
I think this is more of a "keep an eye on the numbers" issue than it is
"it's got to be rebuilt for sure" issue. It runs strong. Your opinions?