K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Fluid Pump: All Technical Service Bulletins
A/T - 2004R/700R4 Oil Pump & Slide Service
SIL 86-27 (Nov)
SUBJECT: 200 R4/700 4R
SERVICE PROCEDURES FOR THE OIL PUMP ROTOR & SLIDE
Beginning mid November, 1983, service parts became available to service the oil pump rotor and slide of the pump body assembly, on all THM 200-4R
and 700-R4 transmissions. This service procedure on all THM 200-4R and 700-R4 transmissions must be followed to assure proper end clearance on the
oil pump rotor and slide.
SERVICE PROCEDURE:
Note
DO NOT attempt to service the oil pump rotor if either the pump body pocket or pump body cover surfaces are scored. Servicing of the oil pump
rotor and slide should be performed ONLY if the selective pump rotor, or the slide show wear.
1.
Disassembly of the oil pump:
A.
Disassemble the oil pump body assembly following procedures outlined in the service manual. Refer to Figure 1 for the THM 200-4R and
Figure 2 for the THM 700-R4 transmission oil pump body assembly.
2.
Selecting the pump rotor and slide:
