I rebuilt the Holley 1940 carburetor on my 78' CJ5 and now the engine is running very rich and rough like it has a racing cam.
1. All new spark plugs are black from running rich.
2. Exhaust is gassy and some black smoke.
3. Turning the fuel/air mixture screw has no effect.
4. New gaskets are not blocking any holes.
5. Using the old or new jets has no effect.
6. Have a new fuel pump without a regulator.
7. Engine revs up but never smooths out.
Maybe now's the time to upgrade to the Weber 2 bbl?
Thanks for any help.
1. All new spark plugs are black from running rich.
2. Exhaust is gassy and some black smoke.
3. Turning the fuel/air mixture screw has no effect.
4. New gaskets are not blocking any holes.
5. Using the old or new jets has no effect.
6. Have a new fuel pump without a regulator.
7. Engine revs up but never smooths out.
Maybe now's the time to upgrade to the Weber 2 bbl?
Thanks for any help.
Rebuilt Holley 1940 engine now rich and rough running
