MERCARB 2 BARREL CARBURETOR
SERVICE MANUAL NUMBER 24
90-861327--1 OCTOBER 1999
Page 5B-5
Tools
Description
Part Number
Tachometer
79-17391A1
Universal Carburetor Gauge
91-36392
Float Gram Scale
Obtain Locally
Specifications
Engine Model
5.0L
5.7L
Carburetor Type
MerCarb 43mm
MerCarb 43mm
Carburetor Number
3310-861448
3310-861245
Float Level
11/32 in. (9 mm) See Notes
Float Drop
15/16 in. (24 mm) See Notes
Pump Rod (Location)
Middle Hole Of Pump Arm
Choke Setting
2 Marks Right Of Index Mark (Lean)
Choke Unloader
5/64 in. [.080 mm] See Notes
Idle Mixture Screw
1-1/2 Turns Out
Float Weight
9 Grams Maximum
Main Jet Size
1.65 mm
Power Valve Size
0.90 mm
Venturi Cluster I.D. Number
476
475
Accelerator Pump
Discharge Hole Size
0.035 (0.889)
0.043 (1.09)
NOTE: Measurement taken from gasket.
NOTE: All measurements are +/– 1/64 in. (0.4 mm)
Index