928 S4 V8-4957cc 5.0L (1987)
Hydraulic Hose: Technical Service Bulletins
Clutch Hose - Check Routing & Modify Protective Plate
Subject:
Checking Clutch Hose
Model
928 S4
Group
3
Part Identifier 3027
Number
8709
November 20, 1987
928 S4 with Manual Transmission
The condition and the routing of the hydraulic clutch hose should be checked and the engine protective plate (picture 1) should be modified on 928 S4
vehicles Model Year 1987 and Model Year 1988 prior to Production Date, August 21, 1987. VIN WPOJB0929JS860309
Vehicles in inventory should be checked/ modified as soon as possible but prior to delivery. Customer owned vehicles should be checked/modified at the
next visit to the dealership service department.
Proceed as follows:
1)
Check routing of the clutch hose. The hose should not have sharp bends or kinks in the area of the threaded flanges. If necessary, bend the hose
support brackets.
2)
The hose should be replaced with new type hose if there is evidence of cracks, kinks or chafings. When installing a new hose, make sure the hose
is not twisted or kinked. If necessary, bend the support brackets.
Bleed the hydraulic clutch system after hose replacement.
3)
The starter shielding plate on the engine protective plate should be shortened to 70 mm using metal snips or a similar tool (picture 1).
4)
Checked/modified vehicles should be marked with two white paint dots on the brake booster.
New clutch hose Part Number:
928 423 077 03
Administrative Procedure:
a)
Check hose and modify plate