Camshaft Drive Belt - Failure: Overview
88porsche01Subject: Replacement of Camshaft Drive Belt/
Checking and Adjustment
Model
944S
Group
1
Part Identifier
1524
Number
8807
March 30, 1988
This is to notify you of a service action for 1987/88 model 944S Porsches. It has been determined by Porsche AG that in some cases the camshaft drive belt on such vehicles may fail. Continued driving with this belt may result in its breakage and cause extensive engine damage.
An improved belt is now available and must be installed on the vehicles within the following VIN ranges, so to ensure the proper service life for the camshaft drive belt.
Model 1987: WP0AA0946HN450101 - WP0AA094XHN453127 WP0AA2943HN465101 - WP0AA294XHN465113
Model 1988: WP0AA2942JN465061 - WP0AA2947JN465544
Customer Notification
Porsche Cars North America will notify all known owners directly by first class mail during the week of April 4, 1988 as per the attached copy of the customer notification letter.
For those vehicles which are in dealers inventory or for which the sales information is not in our files, the notification will be addressed to the dealer. If the vehicle is in dealer inventory, the camshaft drive belt replacement and placing of the maintenance insert into the Warranty Maintenance Booklet should be performed without delay. If the vehicle has been retailed or dealer traded, the dealer is to make the necessary arrangements to have the customer or receiving dealer contacted and the service action performed.
NOTE: This service action consists of:
a) Replace camshaft drive belt.
b) Place insert, page 24 a/b, into the vehicle's Warranty Maintenance Booklet.
c) Check and adjust the new camshaft drive belt after 2000-2500 miles of driving.
d) Log the belt adjustment information on page 24b in the Warranty Maintenance Booklet.
Work Procedure
See Attachments
Parts Requirements
The parts and the insert for the Warranty Maintenance Booklet required to perform the service action will be shipped to you in the amount required according to your affected vehicle allocation in the week of April 4, 1988. The parts required to perform this service action are:
Quantity Part Number Description
1 944 105 32300 Camshaft Drive Belt
2 999 084 09202 Lock Nuts
1 PNA 000 15 Warranty Maintenance
Booklet insert, page 24a/b
Additional quantities, after the initial allocation is made, should be ordered, as needed, through normal parts channels using the above part numbers.
Time Allowance
See Administrative Procedures
Administrative Procedure
See Attachments