Page 365 - 2017 Racecar Engineering Circle Track Parts and Accessories Catalog

FUEL BOWL SIGHT PLUGS FLOAT HANGER
HLY26-13 HARDWARE KIT HLY20-105
Standard replacement sight plugs are sold per pair. Hardware for float installation.
IDLE MIXTURE SCREW AND GASKET FUEL BOWL VENT BAFFLE
Part No. Description HLY26-89
HLY26-101 Idle Mixture Screw Baffle is 1-7/16" long, and prevents fuel from splashing out of the vent tube.
Idle Mixture Screw Gaskets, Cork,
HLY26-110-10
Pkg. Of 10
ACCELERATOR PUMP DISCHARGE NOZZLES
Each pair of discharge nozzles includes 4 gaskets. Used on 4150, 4160, 4165,
TRANSFER TUBE O-RINGS AND SEALS 4175 and 4500 series carburetors. Straight type and tube type nozzles were
Part No. Description originally used on models 4150, 4160 and 4500. Anti-pullover style nozzles,
Transfer Tube O-Ring, originally used on production 4165 and 4175 models, were engineered to com-
HLY26-37
Old Style, Pair bat “pump pull-over”, which occurs when the flow of air over the nozzles pulls
Transfer Tube Seal, fuel from the nozzle. Anti-pullover sold individually.
HLY108-97
New Style, Pair
“VITON” INLET NEEDLES AND SEATS
Part No. Description
Adjustable
HLY6-506 0.097" Seat Size
HLY6-504 0.110" Seat Size Hole Size Straight Type Tube Type Anti-Pullover
Part No.
Part No.
Part No.
HLY6-518-2* 0.120" Seat Size
* Set of 2 .018" HLY121-118 – –
.021" HLY121-121 – –
.025" HLY121-125 HLY121-25 HLY121-225
“STEEL” INLET NEEDLES AND SEATS .028" HLY121-128 HLY121-28 HLY121-228
FOR HIGH PERFORMANCE FUELS .031" HLY121-131 HLY121-31 HLY121-231
–
For use with alcohol, or additives (benzine or acetone). Pack of two. .032" HLY121-132 HLY121-35 – –
.035"
HLY121-135
Part No. Description .037" HLY121-137 HLY121-37 HLY121-237
HLY6-500-2 0.110" Seat Size .040" HLY121-140 HLY121-40 HLY121-240
HLY6-502-2 0.120" Seat Size .042" HLY121-142 HLY121-42 –
HLY6-515-2 0.130" Seat Size .045" HLY121-145 HLY121-45 –
HLY6-519-2 0.150" Seat Size .047" HLY121-147 – –
.050" HLY121-150 – –
TITANIUM NEEDLE AND SEAT
HLY6-521
Large .150" titanium seat is among the largest avail- ACCELERATOR PUMP
able anywhere. Sold Individually. TUNING KIT HLY36-184
Kit includes a variety of diaphragms, pump nozzles,
ADJUSTABLE NEEDLE AND pump cams and related hardware for Holley carburetors.
SEAT HARDWARE KIT
HLY34-7
Includes adjusting nut, locking screw, gaskets ACCELERATOR PUMP DI A PHRAGMS
and O-rings.
Available in rubber, or GFLT which is compatible with all
alcohol base fuels.
WEDGED FLOATS Description Rubber Part No. GFLT Part No.
Wedge-shaped, Nitrophyl floats allow fuel to “ride up” 30cc HLY135-5 HLY135-10
the wedge when the car is in the turns, preventing 50cc HLY135-7 HLY135-9
premature shutoff of inlet valve because the float is too HLY116-13
high. Available separately or with jet extensions.
Part No. Description ACCELERATOR PUMP CHECK VALVE
HLY116-13 Primary Wedged Nitrophyl Float HLY26-41
HLY116-14 Secondary Wedged Nitrophyl Float
Secondary Wedged Nitrophyl Float
HLY116-15
And Jet Extensions HLY116-15 50CC ACCELERATOR PUMP
FLOATS CONVERSION KIT HLY20-11
Kit more than doubles the capacity of accelerator
Replacement floats are available in nitrophyl or brass. pump sys tem on Holley four bar rel car bu re tors.
Part No. Description
HLY116-2 Brass Center Hung Float
HLY116-3 Nitrophyl Center Hung Float

364