Mike D
Well Known Member
So, I have 1900 hours on the o-320 150hp Lycoming on my -6a. Cylinders #2 and #3 are seeing low compression (tested cold = 65/80, 56/80, 42/80, 76/80)
Last year was 74/80, 49/80, 72/80, 78/80
Engine runs well. Full power, normal CHT and EGT. Bore scope looks good. Oil burn is 1qt/8hours. Looks like worn rings. (Hear air when listening in the oil filler)
Need to make some decisions.
Do I run and retest?
Do I rebuild the o-320.
Stroke it to a o-340?
Buy a used or new o/io-360?
I would like to keep the cash output low. But my intention is to sell the -6a in the near future when I finish up the RV-10. So resale is a consideration.
If I convert to a io-360, what changes am I looking at? Cowl fit issues? New high pressure fuel pump? Return fuel line? New fuel valve?
What if going to o-360? Will the cowl fit?
What would you do?
Last year was 74/80, 49/80, 72/80, 78/80
Engine runs well. Full power, normal CHT and EGT. Bore scope looks good. Oil burn is 1qt/8hours. Looks like worn rings. (Hear air when listening in the oil filler)
Need to make some decisions.
Do I run and retest?
Do I rebuild the o-320.
Stroke it to a o-340?
Buy a used or new o/io-360?
I would like to keep the cash output low. But my intention is to sell the -6a in the near future when I finish up the RV-10. So resale is a consideration.
If I convert to a io-360, what changes am I looking at? Cowl fit issues? New high pressure fuel pump? Return fuel line? New fuel valve?
What if going to o-360? Will the cowl fit?
What would you do?