[ccsc]

I have a 2.2 that i'm rebuilding, and had the case line bored as the bores were oval along the parting line. They were done by a shop i trust - one of the PP supporters and prolific engine builder/machinist. I have been inspecting all dims prior to assembly and find the main bores with bearings installed, on size perp to parting line, but way over (.009" measured or about .006 over) near the parting line. I have a very nice Mitutoyo dial bore gauge that allows me to measure within .0005".

I have only measured with bearings (supplied with line bore work) installed, and the only thing i can figure is that the alignment dowels and holes have slop or a bugger that is causing a case half offset. When measuring near the parting line, i am measuring directly across from one half to the other.


My next step is to split cases again, remove bearings, and remeasure bores, and also feel with my finger if the case halves feel offset.

Has anyone experienced this? Any suggestions on solutions?

Thanks in advance

CC