Pistons & Rings - Modified

9215porsche01

April 7, 1992


Model
944 S2

Part Identifier
1310


Group
1

Number
9206


Subject: New Pistons and Piston Rings


ATTENTION: Service Manager/Service Technician

Models Affected: 944 S2 from Model Year 1989 (K) -


Concern: Installation of new version pistons and piston rings.

General Information: Reinforced pistons and modified piston rings are installed from production date: April 15, 1991. Engine number 42 M 05041 (M44.41)

Identification markings of pistons and piston rings:

Pistons: under side of piston bottom





New Version: + + + or + + + +
(Figure 1)

Former Version: + or + +

Piston rings: top side of rings





New Version: T-T
(Figure 2)

Former Version: M


Repair Information: When repairing high oil consumption on engines prior to the engine numbers listed in this bulletin, new version pistons with rings should be installed. Check and measure cylinder bores for wear before installing new pistons.

When repairing engines for high oil consumption which have new version pistons already installed and cylinder bores are OK, replace piston rings only.

Note: Connecting rod bearing shells and nuts must always be replaced when repairing an engine whenever connecting rods are removed.





Parts Information:


Warranty Information: Damage Code: 1310100002

Labor Operations:

13102005 R & R All Pistons 1450 Time Units
13191950 R & R Piston Rings 20 Time Units
1 Piston

Note: For all 4 piston rings, it will be necessary to drop the last digit and claim as A-time.