240 L4-2.3L SOHC VIN 88 B230F (1986)
Hose/Line HVAC: Technical Service Bulletins
A/C - Hose Clamp
Reference Bulletins:
Subject: Product
SERVICE BULLETIN
1986 M/Y
CARS
GROUP 87 NO. 117
A/C HOSE
CLAMP Group
87
Date:
No.
MAY 1986
116
THIS BULLETIN APPLIES TO THE U.S. AND CANADA.
REFERENCE:
P20 SB 87-117 DATED MAY 1986. SERVICE MANUAL TP 30461/1 (ENGLISH), AIR CONDITIONING
The A/C hose, which is pointed out below, may fatigue at the metal elbow if excessive tension has been applied to it as the engine moves during normal
operation. This tension is created by the clamp which does not allow the hose to move with the engine. Removal of this clamp will alleviate this problem.
Attention should also be paid to the routing of the A/C hose. The two drawings below show the correct and incorrect hose positions. As seen in the
incorrect drawing, the A/C belt adjustment bolt (arrow) cannot be adjusted.
WARNING:
Safety glasses must be worn. Freon forms poisonous gas when heated. Do not smoke or have anything in the area which can ignite or
cause sparks. See "Safety Precautions" on pg. 7 of TP 30461/1.
To correct the hose routing, first read through the procedure below, then follow the steps outlined.
1.
Slightly loosen the hose fitting at the compressor and position it correctly (see drawing).
NOTE:
Use extreme care not to loosen the fitting too much, as this will result in a loss of freon. Care must also be taken to insure the fitting is loose
enough so that the metal portion of the hose slides within the compressor. If not, the metal portion may bend.
2.
After completing this operation, check the fitting with a freon leak detector.
NOTE:
If a leak is found and can not be corrected by tightening the fitting, drain the system and replace the O-ring at the fitting. Also check for cracks
in the metal portion of the hose. Follow the procedures in service manual TP 30461/1 for draining, evacuating and refilling procedures.
REQUIRED PARTS:
Part Description Part No. Quantity
