[alfa] alfa-digest V9 #901

[Keith Walker <100662.3423@xxxxxxxxxxxxxx>]

Hi

>>Alternatively, you could build some form of attachment using an old spark
plug, suitably hollowed out to allow the point of the indictor to feed thru
onto the piston crown.  You may require an instrument with a longer point
than standard.<<

Dial gauges are used on some 2 stroke engines for determining the
ignition timing (for example, plenty of Rotax engines). For this they
often use an adaptor threading into the spark plug hole. In the
UK I bought a dial gauge with an adaptor for about #25 (~US$40)
from Dartford Karting.

All the best

Keith
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