rotor arm clearance

for those with Series MM sidevalve cars produced between September 1948 and February 1953
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moggylowlight
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rotor arm clearance

Post by moggylowlight »

I cut a cracked distributor cap in half to see the clearance gap the rotor arm has to the contact, any play in the shaft down to the cam or a loose fitting rotor arm can cause intermittent firing issues. The picture shows the gap on a fully restored distributor with an original lucas rotor arm.[frame]Image[/frame]


Sidevalve upper limits
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MarkyB
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Re: rotor arm clearance

Post by MarkyB »

Very interesting, I've always wondered how it all looks when the cap is on.
The centre post seems to be pushed right in.

"Once you break something you will see how it was put together"
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