Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1987R 30 P/U 2WD V8-379 6.2L DSLREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESERVICE AND REPAIROVERHAUL700-R4 AUTOMATIC TRANSMISSIONCASE & INTERNAL COMPONENTSPUMP BODY ASSEMBLY
1987 Chevrolet R 30 P/U 2WD V8-379 6.2L DSL
Pump Body Assembly
1987 Chevrolet R 30 P/U 2WD V8-379 6.2L DSLSECTION Pump Body Assembly
Fig. 83, Oil pump assembly:
Fig. 85, Pump body assembly:
1. Install O-ring seal and oil seal ring into groove on back side of slide, Figs. 83 and 85 Apply suitable locking compound to the pump body oil seal to help aid in retaining seal in body.
2. Install pivot pin spring and pivot pin into the pump body.
3. Install slide while aligning notch in slide with pivot pin, then the slide seal and support. Oil seal ring should face downward into the pump pocket.
4. Install pump vanes and vane guide ring, and rotor assembly.
Fig. 86, Installing pump seal:
5. Install pump slide spring. If removed, install the oil seal assembly using pump oil seal installer tool No. J-25016, Fig. 86.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.