mahle piston and cyl. set

[kepperly]

I was asked to sell for a friend a complete set of six pistons and cylnders. AT first I thought they were the MAX MORITZ 98 mm
but after close measurment they are a 95 mm jugs. Does anyone have a list of Mahle part #s and what the go in. The pistons look almost like my Carrera's.

Keith Epperly 87 slant nose turbo look carrera cabriolet

I also will have g-50 gear sets, 915 gear sets and the nicest set of escar-go race headers I have ever seen used.
not trying to advertise in the wrong place just need help with pistons and cyl's.

[jpnovak]

Post a picture. Are they 22 or 23mm wrist pins? There should be Mahle numbers on the crown and up under the skirts. these are for height and weight groups.

[kepperly]

heres what I've found
mahle 503-39-90 on boxes
set of six all good no shirt scuffing cross hatch very visable
rings usable but should be replaced, lands and ring grooves nice

d... marked clynders part # 95zn1w3

pistons marked
co21
93l71 O36 36 inside of the O
O 40 7 40 over the 7 inside the O

appear to be stock mahle dome with the teat in the center of the piston

[emcon5]

Nothing to add, but I would be very surprised if those pistons came in those boxes. My guess is the piston/cylinder set that are on the car now came in those boxes.

What kind of car does your friend have?

Tom

[kepperly]

The race car he just sold, was a 77 tub with 993 rear suspension, Bob Farmer 3.8 ltr. and front coil overs is all I can remember. He and a "bone" Dr. from afton, OKL. used to race
together about two years ago.

Keith Epperly 87 slant nose turbo look carrera cabriolet

[davidppp]

THe pistons look like stock 3.2's.

I assume the cylinders are without fire ring groove?

Kind regards
David

[kepperly]

no they have upper cylinder gaskets. And they are machined into the top of the jug like for o-rings. Could these be from a 3.3 turbo? The other car my friend has is a Ruf Turbo 3.4 and I wonder if these were left over from that conversion.

Keith Epperly 87 slant nose turbo look carrera cabriolet

[john walker's workshop]

stock nikasil 3.0 mahles. 3.2 and 930 have no head gasket groove on top.

[CBRacerX]

The pics show two different sets of pistons. Please take and post close up images of the top of the cylinders, base of the cylinders, top of piston, side of piston showing the wrist pin area and bottom of piston.

Then we can help!

[kepperly]

I will double check but when i looked at them i was sure they were all the same.

Keith Epperly 87 slant nose turble look carrera cabriolet

[CBRacerX]

I looked at the pics hastily, sorry about that!

[kepperly]

CB THANKS, I WAS GETTING AN ULCER WORRYING I MISSED SOMETHING WHEN I LOOKED AT THEM, AND I COULDN'T GET AWAY FROM WORK AND GO HOME AND CHECK.

KEITH EPPERLY 87 SLANT NOSE TURBO LOOK CARRERA CABRILET

[iamchappy]

What did you determine these piston and cylinders are.

[Alan Cottrill]

I think JW correctly identified these as stock nikasil 3.0 Mahles

[kepperly]

I did measure the wrist pins and they are 22mm and after looking through Bruce Andersons 2nd book I think these are the 9.8-1 compression units. anyway with that settled I have listed them and alot of other things on Ebay at stupid cheap starting prices

my seller name is manyporscheowner have alook

Keith Epperly 87 slant nose turbo look carrera cabrlet