Volkswagen Type II Transporter 1200 Series Shop Manual page 211

(3) Breaker arm spring for correct tension (check
specifications). Breaker arm spring tension too weak or
strong will effect the high speed performance either by
floating which is caused by weak tension or bouncing which
is a result of over tension.
(4) That the pivot post is free but firm and the fibre
insulation washer or sleeve is in good condition.
(5) Low tension terminal and lead for tightness and
condition of insulation.
( 6) Breaker arm fibre block for wear and seating on
cam.
(7) Correct gap.
TO CHECK CAPACITOR
A faulty capacitor is usually indicated by burnt or
otherviise damaged pofuts, weak ignition spark or erratic
performance of the engine. To conclusively test a capacitor,
a special tester unit is required. Where this unit is available
the capacitor should be tested for:
(I) Grounding or shorting.
(2) Insulation breakdown under load.
(3) High series resistance.
(4) Capacity test.
(5) Leakage test.
I£ a tester. unit is not available the best method is by·
substitution.
TO SET IGNITION TIMING
(I) Before attempting to set the timing, check and if
necessary, adjust the breaker points to the correct gaps.
(2) Loosen the distributor clamp or screws.
(3) Connect one lead of a suitable test lamp to the low
tension lead terminal at the distributor and the other to a
good earth on the crankcase.
(4) Rotate the crankshaft until number one cylinder is
at tdc on compression stroke and the appropriate mark on
the fan pulley lines up with the join of the crankcase (see
specifications).
(5) Switch on the ignition.
(6) Rotate the distributor body clockwise until the
points close.
(7) Rotate the distributor body anti-clockwise until the
breaker points just open and the lamp lights.
(8) Tighten the clamp or screw.
NOTE: If it is desired to add additional degree rruzrks to the
· pulley, the following basic equivalent of the extreme
outside diameter of the pulley rruzy be used.
One sixteenth of an inch (.0625") equals 2.5 degrees
advance.
211
Electrical System-18
,--SCREW
.SPRING
~""'0"'-"''
e-...scREW
Q-sHIM
DISTRIBUTOR BODY
Exploded View of Distributor Components (1500-1600
Models).