Demon Fuel Systems 190000 - Manual (Page 6)

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13. Remove the 4 hex head screws that hold the vacuum pod top to the base to be able to replace the
diaphragm (Fig. 11). Assembly is the reverse of the removal.
Figure 11
14. The accelerator pump discharge nozzle may be removed by loosening the Phillips head screw
and inverting the main body over your hand (Fig. 12). When this is done, the nozzle, screw, and
the discharge check needle should fall out. Care should be used in reinstalling the Phillips head
screw so as to not strip out the threads.
Figure 12
15. The final major disassembly step is to invert the carb and remove the six Phillips head screws that
attach the throttle body to the main body. Once the two pieces are separated, the main body
gasket may be removed. Before discarding the old gasket, match it up with the new one to insure
that the proper gasket finds its way onto the main body during reassembly.
16. Use carburetor cleaner, available at most automotive parts stores, for cleaning.
When reinstalling the metering plate on the secondary side of Holley ® Model 4160 ™ carbs, the
contoured gasket is placed on the plate first. Then, the thin metal shim plate is placed on top of
the contoured gasket. Finally, these three pieces are placed on the large rectangular gasket (Fig.
13), and the four piece sandwich is then placed on the main body, and the six main body clutch-
head screws are tightened.
The Demon Carburetion™ Road Demon Jrs. metering plate is
attached directly to the rectangular gasket using 6 Phillips head screws (Fig. 14).