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 MANUALSPONTIAC19866000 BASE, 2D COUPE, 2.5 RREPAIR AND DIAGNOSISENGINE MECHANICALMECHANICAL2.5L 4-CYL - VINS [R,U,2]ENGINE SPECIFICATIONSVALVE SPECIFICATIONS
1986 Pontiac 6000 Base, 2D Coupe, 2.5 R
Valve Specifications
1986 Pontiac 6000 Base, 2D Coupe, 2.5 RSECTION Valve Specifications
VALVE SPECIFICATIONS
| Application | In. (mm) | |
|---|---|---|
| Intake | ||
| Head Diameter | 1.72 (44.45) | |
| Face Angle | 45° | |
| Seat Angle | 46° | |
| Seat Width | .035-.075 (.889-1.90) | |
| Stem Diameter | .342-.343 (8.69-8.71) | |
| Stem Clearance | .001-.0027 (.025-.069) | |
| Valve Lift | N/A | |
| Exhaust | ||
| Head Diameter | 1.50 (38.10) | |
| Face Angle | 45° | |
| Seat Angle | 46° | |
| Seat Width | .058-.097 (1.47-2.46) | |
| Stem Diameter | .342-.343 (8.69-8.71) | |
| Stem Clearance | .001-.027 (.025-.069) | |
| Valve Lift | N/A | |
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.