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.
Oldsmobile Synchro-mesh Carburetor Note
On manual transmission models a compressed spring is used on the lower end of the power piston actuator rod. It is not necessary to remove rod from float bowl unless replacement is necessary. When removing power piston, push upward on actuator rod until slot in side of power piston is above bowl.
- 8) Lift power piston-metering rod assembly and drive rod from float bowl, remove power piston spring from cavity, and pump plunger assembly from float bowl. Remove pump return spring and main metering jet. Remove hot idle compensator cover, compensator and gasket, then remove idle adjustment screw and fast idle cam (if necessary).
- 9) Remove attaching screws to separate bowl and throttle body. Remove idle mixture needle and spring.NOTE: Do not remove throttle valve or shaft. This is a close tolerance fit.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.