Engine - Oil Leaks Diagnosis & Repair
85-1596E
NOV., 1985
Subject: ENGINE OIL LEAKS
Model and Year: 1982-85 C, K, G, P AND CUCV MODELS
EQUIPPED WITH 6.2L DIESEL (VIN CODE C & J)
TO: ALL CHEVROLET DEALERS
In the event that engine oil leaks are experienced on the above models, an inspection of the crankcase ventilation system should be conducted following the procedure outlined in section 6E9 of the Light Duty Service Manual.
If a vacuum leak has been diagnosed, the technician should be aware that it is possible for the steel screw-type hose clamps used on 1982 through 1985 6.2L diesel engines to cut into the hose connectors. This may cause a vacuum leak, allowing the crankcase to become pressurized, and subsequent seal or gasket leakage could result. A plastic snap hose clamp has been released to address this condition.
Whenever CDR system hoses are inspected, all steel hose clamps should be replaced. The hoses and new plastic snap clamp part numbers are released for C, K, G, P and CUCV trucks as follows:
Part Number Description
Quantity
14050495 Straight Hose As Required
14050445 "L" Shaped Hose As Required
14050446 "F" Shaped Hose 1
10019739 Plastic Snap Clamp 1
1623010 Plastic Snap Clamp 6