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 MANUALSBUICK1987REGAL GRAND NATIONALREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESPECIFICATIONSE4ME 4-BBL SPECIFICATIONSPECIFICATIONS - ROCHESTER E4ME CARBURETOR5.7L V8, (VINS L & 6)
1987 Buick Regal Grand National
5.7L V8, (VINS L & 6)
1987 Buick Regal Grand NationalSECTION 5.7L V8, (VINS L & 6)
ROCHESTER E4ME CARBURETOR SPECS (5.7L VINS "L" & "6")
| Carburetor Number | Specification | ||
|---|---|---|---|
| 17081218 | |||
| TPS | .56 Volts, At Curb Idle With ISC Retracted. | ||
| ISC | |||
| Minimum | ISC Not Used. | ||
| Maximum | ISC Not Used. | ||
| Idle Mixture | Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756. | ||
| Lean Screw | 1.304 | ||
| Idle Screw | 3 3/4 | ||
| Vacuum Break | |||
| Primary | 26° | ||
| Secondary | N/A | ||
| 17081224 | |||
| TPS | .56 Volts, At Curb Idle With ISC Retracted. | ||
| ISC | |||
| Minimum | ISC Not Used. | ||
| Maximum | ISC Not Used. | ||
| Idle Mixture | Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756. | ||
| Lean Screw | 1.304 | ||
| Idle Screw | 3 1/2 | ||
| Vacuum Break | |||
| Primary | 2° | ||
| Secondary | N/A | ||
| 17081228 | |||
| TPS | .56 Volts, At Curb Idle With ISC Retracted. | ||
| ISC | |||
| Minimum | ISC Not Used. | ||
| Maximum | ISC Not Used. | ||
| Idle Mixture | Set Rich Stop Screw At 4/32". Set Air Bleed Setting 1.756. | ||
| Lean Screw | 1.304 | ||
| Idle Screw | 3 1/2 | ||
| Vacuum Break | |||
| Primary | 26° | ||
| Secondary | N/A | ||
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.