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R/R piston rings from underneath?
Okay, I've checked everything else and it has to be a cracked oil ring on number 5.
I recently rebuilt the heads and would prefer to snatch the motor out and pull the pan and r/r the rings on number 5 leaving the top end intact. Really don't want to pull the heads again (gaskets, head studs, etc). Can I r and r number 5's rings from underneath on an engine stand? I have never done a ring job and realize that I may have to take it apart anyway and hone it if the rings are really messed up. But it is holding 175 PSI on a compression check and not losing any pressure even after an hour of sitting. So, I think it has to be a cracked oil ring... I have r/r'd valve seals twice and r/r'd the intake manifold gasket 5 times to make sure it isn't pulling from the lifter valley. It is only doing this on number 5 and it is pissing me off. It also NEVER smokes. All other plugs are perfect. I just need number 5, it's burning a quart every 150 miles and fouling the plug royally. Plus it's killing my idle, f-ing up the octane, and I'm anal. Thanks in advance...maybe I should just stroke it and be done with it... By the way, road trip from New Smyrna Beach yesterday I averaged 3900 RPM with 3.73's on my T-5 in 5th. The needle was buried so I have no idea have fast I was going. If the needle is calibrated past 85, I had to be averaging 105-110 for the better part of an hour. |
Nope, the crank will be in your way. If you have to pull the crank I would just pull the one head & do it from the top.
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Even if you could weasel it around the crank, it would be a real bitch to get the rings compressed to go back into the bore from the bottom side.
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