Ignition Setting - Volvo 164, 1970 Service Manual

IGNITION SETTING
Ign1 ition setting shou1 li d always be ca' r rie.d out whi,le
the engine
IS
running and with the help of a Strobo-
scope.
1. Clean the flywheel damper so that the graduation
marks are visible, see Fig. 3-59.
2. Remov, e the ,hoses from the vacuum regulator.
(The hose for the intake manifold should be shut
off by, for examp le, bending it or by sea ling it
with a suitable plug, so that the engine does not
draw in unwant, e dair.)
3. Connect the Stroboscope to No. 1 cylinder
spark
plug and to the bai t tery.
4. Start the engine and run it at the r.p.m. given
In
the "Specifications". Use a tachometer for this
purpose. Point the ignition setting lamp at the
graduation on , t he flywh ee l damper. Slacken the
distributor (3, Fig. 3-47) and turn it until the firing
position agrees with that given in the "Specifica-
tions". Tighten securely the distributor and check
that the firing position and speed has not been
a ltered.
5. Remove the Stroboscope and refit the hoses on
the vacuum regulator.
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