Lip of sleeve at bottom of cylinder

[MasterChiefIDI]

Today I was assembling my motor when I noticed I have a somewhat sharp edge on 3 of my 8 sleeved cylinders. pressing a feeler next to this edge/lip I estimate it's about .010" maybe less. My machinist previously stated he added a 5/16 shoulder at the bottom of each cylinder for the sleeve to stop against and that the skirt should not extend below it.. well, it does..

Is this something others have seen on a sleeve job? Do y'all think I can just slightly slope the raised edge with sand paper and run it? thankfully, this edge is well below the rings. My main concern is skirt wear/piston slap.

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[IDIBRONCO]

Maybe ask your machinist again. Show him the pictures.
I don't know that this would contribute to piston slap since it's at the bottom of the travel. The wrist pin is higher than that ridge and I think that most of the side pressure should be at wrist pin height since that's where the pressure from the crankshaft is applied. That ridge may add to skirt wear like you said. I could also be wrong on my thinking above. Just a fair warning since I'm no machinist.

 

[jwalterus]

From my experience, that ain't right.....

A sleeve should completely fill the bore, I've never seen anyone do anything like that.

My machinist previously stated ..... that the skirt should not extend below it.. well, it does..

That alone is enough information that IMO he should be redoing it, show him that the piston skirt extends below the cylinder.

 

[ihc1470]

Often on repair sleeves the block is not bored all the way to the bottom before the sleeve is installed. The shoulder makes a positive stop so the sleeve can not drop. However usually you can not detect a difference like you are seeing. By chance was the block bore .020 oversize and is now back to standard? That would account for the difference. I do agree that you need to check with the shop that did this work.