How to Inspect and Repair Your Car's Carburetor Power Valve

Your car's carburetor power valve helps to deliver fuel to the engine when carrying heavy loads. Without this, your car will not be able to carry loads because it will shut down. Just follow the steps below to repair your car's carburetor power valve.

Instructions

1. To replace the power valves on carburetors that utilize the power valve piston or meter rod, remove the air horn from the carburetor, remove the sir horn gasket and pop the power piston and metering rod out of its position.

2. Do not remove the spring that sits below the power piston. Clean the outside of the power piston and metering rod with carburetor cleaner to remove varnish. Clean the piston at the same time. At this time, go ahead and rebuild the carburetor. Replace the air horn gasket.

3. For carburetors that utilize the diaphragm type of valve, the power valve is located inside the fuel wall in the main metering block. Remove the screws retaining the power valve cover.

4. Use a wrench to loosen and remove the power valve Compare new an old power valve to ensure correct replacement.

5. Position the new gasket on the new power valve and start by hand to prevent cross-threading. Tighten the power valve with a wrench and reposition the power valve cover and hand tighten the retaining screws. Then tighten with a screwdriver. Yu are done.