M96 & M97 Piston to Cylinder Wall Clearance specs

[997noob]

Dear All,

I'm new to this forum, and I think the existence of this forum and the M96 Engine Rebuild classes are such a fantatstic idea, I hope to be able to contribute in some way!

I'd like to attend one of the Engine Classes one day, if I can find the time to travel to the States. Maybe somtime next year.

Currently, I have an upcoming M97.01 engine rebuild. But it seems that there isn't much data on piston dimensions, cylinder specs, piston to cylnder wall clearances, etc.

Sure, the Porsche parts system indicates there are no upsizes for pistons, as we aren't suppose to bore the cylinders, but how to we judge if the cylinders have worn too big, or the pistons have worn too small. Are there a wear limit specs to check against? Or piston to cylinder wall clearance specs?

Thanks in advance!

[Jake Raby]

This data does not exist from the factory and we have had to create it all from scratch at a cost thats taken several years to acquire.

I have sold these specs in the past, if interested just let us know... If you attend the M96 101 Engine Assembly School lots of them are part of the package.