[William Miller]

I recieved a package from Bernd W. on Friday.
It was mailed from the "Netherlands".
It contained a hard copy of the "Reconditioning Aluminum Blocks" pamphlet. (A link to a PDF is posted here on page 4.)
He also sent some cylinder pictures. (microscope)

I also re-read the Sunnen directions on page 7.
There is also a link to Sunnen there which has their cataloge with their "portable hone" the portable hone is described as one option in the directions.

The KS describes lapping for 60 seconds with 15 strokes.
(This is for the final finish after 2-3 steps of honing oversized.)
Not necessarily the same as reconditioning as is being attempted here.

Sunnen directions is really the final process as well and stated 1-1/2 minutes with the portable hone equipt with the felt pads.

With the automatic machine it is set to shut off in about 2 minutes.

I just wanted to condense that info here.

I also noticed something that is probably a long shot.
KS does/or did supply oversized pistons for the 928. (Reconditioning pamphlet)
The diameter is 95mm and 95.5mm for oversized.
928S is 97mm and 97.5mm for oversized.

I did a few searches yesterday for some spacifications on the 928 to hopefully see a set of pistons and fins all the dimensions.

The only thing I found was set of 4 on e-bay (4 doesn't make sence)
Anyway they were flat top pistons.
Anyone know anything about the 928 pistons please speak up.
I know this is a long shot, but worth a look.
I would think it's possible that a set of oversized 928 pistons or standard or oversized 928S pistons might just work.

One thing I did find is that there seems to be a lot less info out there on the watercooled p-cars than 911's.







928S is listed