Hudson Super-Six 1926, Instruction Book, Page: 16 / 24

HUDSON INSTRUCTION BOOK
16
The Chain
The camshaft and accessory shaft is driven by a chain which is provided
with means of adjustment. At the expiration of from 500 to 1,000 miles of
driving it is advisable to determine if the chain requires taking up. Subsequent
inspections at intervals of 4,000 miles are recommended. To inspect chain
proceed as follows:
Grasp the coupling between the generator and water pump and turn to and
fro as far as possible. There should be approximately one-eighth of an inch
movement in the circumference. If more is visible then ad-just chain as
follows: Remove the three bolts marked "C" (inside one is hidden in illustra-
tion). Then, by means of the special wrench "A," pull flange in the direction
of the arrow until only the necessary play is present as explained above. If it
is necessary to shift the flange slightly to get the bolts to line up, back off the
adjustment instead of turning up tighter or you will overload the bearings.
To remove the chain it is necessary to take off the camshaft gear. When
replacing the chain, it is very important that the punch marks on the teeth of
the crank and camshaft sprockets coincide with the punch marks on the chain
pins, and that the arrows stamped on the side of the chain links point in the
direction in which the chain runs. If these points are not observed, the valves
will not be timed properly, and the chain will not operate. In addition, the
ignition timing should also be checked as outlined on page 11.