Getting a new piston. What engine do I have?
Drifting
Joined: Aug 2004
Posts: 1,883
Likes: 124
From: Lubbock TX
Two busted ring lands didn't happen at assembly, cylinder wall would be junk by now if that happened.
Also, the top of that pin looks like it's been way hot, looks like baked-on oil.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
Lets play the "What If" game.
What if the ring end gap called for, say 0.016.
And for some unknown reason it was set at 0.010.
And what if the bore had a unreasonable taper?
What would happen to the lands?
What if the ring end gap called for, say 0.016.
And for some unknown reason it was set at 0.010.
And what if the bore had a unreasonable taper?
What would happen to the lands?
Thread Starter
Intermediate
Joined: Feb 2017
Posts: 42
Likes: 1
That's a vey interesting thought. Wouldn't the walls be scored if the ring was wedged into a taper? I didn't see any marks or scrapes on the walls. Damn... I have the oil pan on already. Second guessing is the worst. It's a good thought. Thank you for it.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
I just find it hard to believe that damage was done at assembly. Normally a plastic handle or even a wooden handle of a hammer gently taps the piston home. Yours looks like somebody forced a 40 over into the bore with a sledge hammer!
But what if the rings were too tight after warm up . . . . . .
But what if the rings were too tight after warm up . . . . . .
Last edited by HeadsU.P.; Jan 28, 2018 at 06:32 PM.
