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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1990S10/T10 P/U 2WD V6-173 2.8LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINEOIL PUMP, ENGINE
1990 Chevrolet S10/T10 P/U 2WD V6-173 2.8L
Oil Pump, Engine
1990 Chevrolet S10/T10 P/U 2WD V6-173 2.8LSECTION Oil Pump, Engine
| Rotor Backlash | 0.009-0.015 | |
| Rotor To Body Clearance | 0.003-0.004 | |
| Rotor End Clearance Note: Measured between pump cover mating surface & end of rotors using straightedge & suitable feeler gauges. | 0.002-0.005 | |
| Gear Pocket | Depth | 1.195-1.198 |
| Diameter | 1.503-1.506 | |
| Rotor Thickness | 1.199-2.000 | |
| Rotor Diameter | 1.498-1.500 | |
| Relief Valve To Body Clearance | 0.0015-0.0035 |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.