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 MANUALSPONTIAC1987GRAND AM L4-151 2.5LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINEOIL PUMP, ENGINEPUMP SPECIFICATIONS
1987 Pontiac Grand AM L4-151 2.5L
Pump Specifications
1987 Pontiac Grand AM L4-151 2.5LSECTION Pump Specifications
| Gear Backlash | .009-.015 Inch (in) |
| Gear To Body Clearance | 0.004 Inch (in) Note: Maximum |
| Gear End Play Note: Measured between pump cover and end of gears using straight edge feeler gauge. | .001-.004 Inch (in) |
| Depth | .995-.998 Inch (in) |
| Diameter | 1.503-1.506 Inch (in) |
| Pump Gear Thickness | .999-1.002 Inch (in) |
| Pump Gear Diameter | 1.498-1.500 Inch (in) |
| Relief Valve To Body Clearance | .0015-.0035 Inch (in) |
RENDER: 1.0x
NO RELATED
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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.