Figure 4-31. Distributor, installed.

c. R e p a i r .

(1) If contacting area of points is slightly

burned or pitted, clean area with a few strokes of a

point file, Do not try to remove all roughness, or

dress points down smoothly; only remove scale or

dirt, Do not use sandpaper or emery to dress points.

(2) To remove points, remove the point

mounting lock screw and point spring screw and lift

off point set. To remove capacitor at this time

remove capacitor screw and lift capacitor from

distributor.

Note. Do not replace capacitor unless it is

defective.

(3) Install points and capacitor by reversing

(2) above.

(4) Test automatic advance by twisting cam

clockwise. It should turn against spring tension,

and return by spring tension to its original position.

Figure 4-31. Distributor, installed.

d. Adjustment.

(1) Turn cam until rubbing block on moving

(3) Chalk mark edge of distributor to indicate

point arm rests on peak of one cam lobe (fig, 4-32).

location of rotor tip before removal, loosen minor

(2) Loosen point mounting lock screw, and

adjustment lock screw and lift out distributor.

adjust position of stationary contact, with adjusting

screw, until 0.018 to 0.022 inch leaf feeler gage will

Note. Do not turn engine crankshaft until distributor is

reinstalled.

just enter gap,

(3) Tighten point mounting lock screw.

b. Inspection.

(4) Turn cam until contact points are com-

(1) Inspect distributor cap for cracks, carbon

p l e t e l y closed, Hook a spring scale on moving

streaks, corroded terminals and dirt.

contact (fig. 4-33) and pull in a straight line at a

(2) Inspect contact points (fig. 4-32). Be sure

right angle to point surfaces. Take a reading as

they are free of burns or pits, are aligned correctly

points start to separate under a slow and steady

and are adjusted properly to 0.018 to 0.022 inch.

pull. Spring tension should be 17 to 20 ounces.

Follow adjustment procedure in d b e l o w .

(5) If necessary to adjust spring tension, loosen

(3) Inspect rotor and the metal contact strip

point spring screw (fig. 4-32) which holds end of

for burned condition or cracks.

moving contact spring and slide end of spring in or

(4) Inspect capacitor for secure mounting and

out, as necessary. Tighten point screw and recheck

frayed lead.

spring tension.

Figure 4-33. Testing moving contact spring tension.

e. Installation of Distributor and Adjustment of

Engine Timing.

(1) Position rotor so tip points to chalk mark

made in a (3) above, and replace distributor in

engine. Connect primary lead wire. Do not install

Figure 4-32. Distributor, cap removed.

distributor cap.

4-39