968 Cabriolet L4-2990cc 3.0L DOHC (1993)
Drive Belt: All Technical Service Bulletins
A/C Belt - Squeaking Noise After a Cold Start
Group
8
Number
9403
Model
4 Cyl.
Part Identifier
8725
June 9, 1994
Subject:
968 Air Conditioner Belt Noise
ATTENTION: Service Manager / Service Technician
This bulletin replaces Technical Bulletin Group 8, Number 9301, Book J, page 107.
Models Affected:
Model Year 1992 and 1993 968's (NP)
Concern:
Squeaking noise from A/C belt after a cold start.
General Information:
On 968 vehicles with air conditioning, the poly-rib belt may squeak following a cold start. The noise may occur for up to two minutes after cold start.
Repair Information:
In the event of complaints, either of the following belts may be installed to rectify the squeak noise.
Make
Size
Part Number
Dayco
K6X1000
999 192 299 50
Gates
K6X998
999 192 283 50
Repair Procedure: (Figure 1)
1.
Belt replacement should be done on a cold engine (approximately 70° F).
2.
Remove poly-rib belt and install either Dayco or Gates poly-rib belt.
3.
When adjusting belt tension, the thickness of the belt must be taken into consideration. Using special tool 9201, set the tension of the poly-rib belt
to the scale units shown in the chart below:
4.
Belt Thickness
Scale Value
Link Rod