• Autolite 1100 Specifications & Sizes

    • 08/08/2021
    • Mike

    A- 8-32 x 3/4 80-47 B- 8-32 x 5/8 80-46 C- 8-32 x 3/8 80-43 D- 1/2″ 85-58 1100 Adjustment Data NOTE: These specifications are meant for original installations. Does not cover custom modifications, or carburetor swaps.

  • BBD Troubleshooting Pg2

    • Mike

    Which Check Ball Goes in the Discharge? On the solid fuel type of carburetor the smaller checkball resides in the main discharge. The bigger checkball resides at the bottom of the accelerator pump well. Hard Starting After Sitting The following are things you need to look at, not in any…

  • Edelbrock Specifications

    • 07/13/2021
    • Mike

    The 1406 carburetor has a 0.098-inch primary main jet, and a 0.095-inch secondary main jet. The metering rod measures 0.075 by 0.047 inches.

  • Injection Troubleshooting

    • 07/07/2021
    • Mike

    Fuel system problems can be very difficult to explain because electrical problems can cause fuel components not to work correctly. We generally assume the electrical system is OK and we don’t go down that road. Engine hesitates when stepping on the gas This can be caused by several things which…

  • Autolite 4300 Exploded View

    • 06/30/2021
    • Mike

    1- Screw-Sec. Lockout Lever 28- Pump Air Bleed Valve 2- Lever-Sec. Lockout 29- Air Valve Spring Screw 3- Retainer Choke Rod 30- Air Valve Spring Clamp 4- Choke Rod 31- Air Valve Spring Housing 5- Choke Rod Dust Shield 32- Air Valve Spring 6- Pump Rod Retainer 33- Bowl Cover…

  • Rochester 2 Jet Troubleshooting (pg2)

    • 06/27/2021
    • Mike

    My Accelerator Pump Well is Dented? Why Does My Engine Die When Turning Corners? Most likely gas is spilling over from the float bowl into the intake manifold. This could be caused by a warped carburetor bowl, or top, but I can’t remember the last time I’ve seen a 2…

  • What Is The Spark Control Valve?

    • 06/22/2021
    • Mike

    What the spark control valve does? The spark control valve is often mistaken as a power valve, but it doesn’t have anything to do with powering up the carburetor and everything to do with helping out the distributor. For engines that use the spark control valve, the distributor advance is controlled…

  • Injection Fuel Pump

    • 06/17/2021
    • Mike

    Importance of fuel pressure in traditional EFI and modern DI systems Fuel pressure has always been a key aspect of the fuel delivery system. However, newer vehicles using direct injection (DI) systems, also known as gasoline direct injection (GDI) systems, have raised the importance of proper fuel pressure to a new…

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