Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
Engine Oil Drain Plug: Technical Service Bulletins
Oil Drain Plug Gasket - Revised to Replace Copper Gasket
NUMBER:
86-B-119
GROUP:
6 - Gasoline Engine
DATE:
August, 1986
SUBJECT:
NEW OIL DRAIN PLUG GASKET TO REPLACE COPPER GASKET
MODELS:
ALL S/T MODELS EQUIPPED WITH 2.8L V6, C, K, G, MODELS EQUIPPED WITH 4.3L, 5.0L OR 5.7L, AND M VANS
EQUIPPED WITH 4.3L ENGINES
A new improved oil pan drain plug gasket, P/N 14090908, is available to replace the copper gasket. The new gasket is a steel washer with a captured
O-ring (Viton) design. The new O-ring/steel gasket is capable of sealing irregular surfaces with light torques while retaining the clamping load. Reuse of
the O-ring/steel gasket does not lessen sealing or torque retention characteristics. Recommended torque for the O-ring/steel gasket is 16-27 N-m (12-20
ft.lbs.). DO NOT OVER TORQUE THE DRAIN PLUG as the higher torques may cause deformation, splitting, or loss of sealing capability to the steel
gasket.
