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

2 - 8 ENGINE TUNE-UP
DISTRIBUTOR
1. Remove the distributor cap from the distributor and thoroughly
clean and examine the cap. Replace the cap if it has
hairline cracks, carbon runners and badly burned or corroded
contact inserts.
2. Clean the spark plug cable sockets using KMO-230 Distributor
Cap Terminal Cleaner. Clean any corrosion from
the metal secondary contacts on the underside of the cap.
If these contacts are badly burned or scored, replace the
cap.
NOTE: If burning exists on the horizontal face of the
inserts or on t op of the rotor metal strip, it indicates that
the metal strip of the rotor is too short and the rotor should
be replaced.
3. Clean and inspect the rotor. Replace the rotor if the
insulation is cracked or has carbon tracks, or if the metal
strip is badly burned.
CONTACT POINTS:
1. Inspect, clean and adjust the distributor breaker points.
Replace burned or corroded points. Do not try to hone
pitted contact points as refaced contacts do not have the
finish for satisfactory performance.
FIGURE 11
NOTE: Contact point adjustment is made by first loosening
the clamp screw (B) Figures 11 and 12, holding the
stationary contact plate, then turn the eccentric adjusting
screw (D) to move the stationary contact point. Tighten
clamp screw when correct gap is secured.
NOTE: If points are badly pitted, check the condenser for
over or under capacity. See "Electrical Section - Condenser".
2. When new contact points are Installed be sure they are
properly aligned and that they make contact near the
center of the contacts. Bend the stationary contact bracket
to secure proper alignment. Do Not Bend The Breaker
Arm. Adjust the breaker point gap .020" for 6 cylinder
distributors and .017" for 8 cylinder distributors. Breaker
Arm fibre rubbing block should be on high pointof the
distributor cam when checking adjustment of breaker
points.
3. Apply a few drops of light engine oil to the wick located at
the top of the distributor shaft, to the contact arm pivot
and to the lobes of the cam. Do Not over-oil.
FIGURE 12