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 MANUALSBUICK1985SKYLARK CUSTOM, 2.5 R, STANDARD, MY8REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMCARBURETOR - ROCHESTER E2SE 2-BBLOVERHAULDISASSEMBLYAIR HORN
1985 Buick Skylark Custom, 2.5 R, Standard, MY8
Air Horn
1985 Buick Skylark Custom, 2.5 R, Standard, MY8SECTION Air Horn
- Remove idle stop solenoid/primary vacuum break bracket retaining screws. Remove bracket assembly. Disengage vacuum break link from slot in choke lever. Lift and rotate bracket assembly to remove air valve rod from slot in air valve lever.
- Remove secondary vacuum break bracket attaching screws. Rotate bracket assembly to disengage vacuum break link from choke lever slot.CAUTION: DO NOT remove pump lever retaining screw.
- Remove and discard retaining clip from intermediate choke rod at choke lever. Use a new retaining clip during reassembly. Remove choke rod and plastic bushing from choke lever. Bushing may be reused.
- Remove 3 mixture control solenoid screws and remove mixture control solenoid using a light twisting motion. Remove and discard solenoid gasket, plunger seal and plunger seal retainer.
- Remove all air horn-to-float bowl screws and lock washers. Remove vent stack and screen assembly. Rotate fast idle cam up as far as possible. Rotate air horn and tilt to disengage fast idle cam rod from slot in fast idle cam and pump rod from pump lever hole.NOTE: If pump plunger comes out of float bowl with air horn removal, remove pump plunger from air horn. Air horn gasket should remain on float bowl. DO NOT remove fast idle cam screw and cam from float bowl. These parts must remain permanently in place as installed by manufacturer. Service replacement float bowl will include fast idle cam screw and cam.
- Disconnect fast idle cam rod from choke lever by aligning tang on rod with slot in lever. Lift off air horn assembly.
- Remove TPS plunger by pushing downward through seal in air horn. Remove seal retainer and seal. Remove accelerator pump plunger seal from air horn after using a small screwdriver to remove staking around each seal retainer.NOTE: Use fingers only (no tools) when removing plunger to prevent damage to sealing surface. Use care in removing plunger seal retainer and plunger stem seal retainer to prevent damage to air horn. Discard seals and retainers.
- No further disassembly of air horn is required. Air valve and choke valve attaching screws are staked in place and are not removable. New service replacement air horn assembly includes secondary metering rod and air valve assemblies with preset factory adjustments.
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.