Oil Cooler - Improved Mounting
87porsche04Subject:
Improved Oil Cooler Mounting
Model
924S, 944,
944S
Group
1
Part Identifier
1740
Number
8707
May 6, 1987
ATTENTION: This bulletin replaces bulletin Group 1 Number 8623 dated November 7, 1986.
The oil cooler mounting was modified as follows:
1. Plastic washer installed between housing and oil cooler.
2. Housing - Guide drilling reworked.
3. Adjustment shims between cooler and crankcase installed.
4. Rubber ring - Always replace.
Determining thickness of shims:
Install cooler with plastic washer into housing. Use straightedge on housing and determine distance between oil cooler guide tap and straightedge. (Shim size) Installed measurement should be 0 +/- 0.25 mm. The oil cooler housing gasket is NOT included in the measurement.
Thickness of shims is 0.5 mm.
Introduction date August 18, 1986. From engine number:
43 H 02505 (924S)
43 H 60517 (944)
43 H 00522 (944S)
Denotes revised information
New Part Numbers:
944 107 149 06 Housing
944 107 154 00 Plastic Washer
944 107 219 00 Adj. Shim
(Aluminum 0.5 mm)
Part No. 944 107 165 01 or 944 107 165 03 for the oil cooler and Part No. 944 107 153 02 for the rubber ring remains unchanged.
Important:
When repairing leaks or replacing the oil cooler on older cars, the new housing, plastic washer and adjusting shims have to be installed.
Note:
In case of leaks at the oil cooler, the cooling system needs to be flushed. The connecting rod bearings should be checked for wear if engine oil level was below "minimum" or if coolant entered the engine lubrication system.
Denotes revised information