K 20 3/4 Ton Pickup 4WD V8-379 6.2L DSL VIN J FI (1983)
Cylinder Head Bolt Tightening Sequence
1.
In sequence, torque all bolts to 25 N-m (20 ft.lbs.).
2.
In sequence, retorque all bolts to 65 N-m (50 ft.lbs.).
3.
In sequence, mark one (1) flat on each bolt, with a yellow marker, when you are ready to turn it, so that you can tell how far the bolt has been
turned. TURN EACH BOLT AN ADDITIONAL 90~ (1/4 TURN). Marking the bolts will help insure that none of the bolts are missed.
G.
For remainder of installation, reverse the removal procedure.
WARRANTY DESCRIPTION
Dealers should submit an accurately filled out warranty repair order on each vehicle completed in accordance with this bulletin.
Time Allowance
Labor
Operation
"C/K"
"G/P"
Number
Description
Models
Models
J0507
R&R both cylinder head gas-
kets, inspect and install
brass plugs per procedure
outlined in bulletin.
8.1 hr.
8.7 hr.*
With A/C add
.3 hr.
1.9 hr.
With automatic transmission
--
add
.3 hr.
With electronic speed con-
--
trol (RPO K34) add
.2hr.
*P models equipped with Union City bodies built prior to August, 1982 may require additional time. Contact your Area Service Manager.
PARTS INFORMATION
Parts required to complete this fix are to be ordered from WDDGM and will be available on a limited basis after August 15, 1983. To insure this part
will be obtained as soon as possible, it should be ordered from WDDGM on a C.I.O. order with no special instruction code, but order on Advice Code 2.