1948-1952 Shop Service Manual - - Hudson-Essex-Terraplane Club

2 - 18 ENGINE TUNE-UP
CLIMATIC CONTROL:
1. Remove the carburetor Climatic Control cover.
2. Check the heat control tube for leaks or obstruction.
3. Check choke valve and piston for free movement. Choke
valve should open of its own weight when cover is removed.
4. ReInstall the cover with graduations down and rotate
counter clockwise to center graduation for WA1 and
WGD-773-S and one point lean for WGD-776-S.
CARBURETOR INLET STRAINER:
1 Remove bowl cover strainer nut, gasket, and strainer screen.
2. Clean screen and examine for breaks or corrosion. Replace
defective screen.
3. Replace strainer screen, gasket and nut.
CARBURETOR FLOAT CHECK:
1. Remove air cleaner.
2. Remove carburetor dust cover.
3. Remove screws attaching carburetor air horn.
4. Disconnect throttle connector rod and remove bowl cover.
5. Float setting should be measured as in Figure 23 for Models
WA1-749-S, WA1- 968-S and WA1-990-S, Figure 29 for
WGD-773-S and WGD-776-S.
Float Gauge
Setting Number
Carter WGD-773-S
WGD-776-S 3/16" J-818-3
Carter WA1-749-S
J-818-1
WA1-968-S
WA1-990 -S 1/2" J-818-1
NOTE: Make sure needle is properly seated before checking
float level.
6. To adjust, raise float and press down on float lever lip with
a screwdriver. Bend only a small amount at a time and do
not disturb curvature of the lip.
7. ReInstall float cover.
FIGURE 28
FIGURE 30
FIGURE 29
PUMP TRAVEL (WGD) (WA1)
1. Back cut throttle adjusting screw to seat
throttle valve.
2. Pump connector link should be in outer hole in pump arm
(long stroke) on dual carburetor and in the lower hole (short
stroke) on the single carburetor.