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esprit22

Rotor arm and cap

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Just thought that the last time I changed the rotor arm and dist cap was 20 years ago, car goes great, is it worth changing or if it ain't broke don't fix it..

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1 hour ago, esprit22 said:

Just thought that the last time I changed the rotor arm and dist cap was 20 years ago, car goes great, is it worth changing or if it ain't broke don't fix it..

Check the condition of the 4 posts inside. Make sure they aren't eroded away.

Check the central carbon button inside. Make sure it's not worn down.

Wipe any carbon dust out of it and check for hairline cracks in the plastic.

Make sure the rotor arm has no cracks and wipe any carbon dust off.

If it's all good, the cap and rotor arm are fit for further use.

Andy.

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9 hours ago, AndyPG said:

Check the condition of the 4 posts inside. Make sure they aren't eroded away.

Check the central carbon button inside. Make sure it's not worn down.

Wipe any carbon dust out of it and check for hairline cracks in the plastic.

Make sure the rotor arm has no cracks and wipe any carbon dust off.

If it's all good, the cap and rotor arm are fit for further use.

Andy.

If you're going to the trouble of getting the distributor cap off to do all this inspecting you may as well replace them all while you're at it.

It's not as though they're expensive & then you're set for another 20 years of fun filled, reliable motoring. :thumbup:


Cheers,

John W

http://jonwatkins.co.uk

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Andy's correct on points mentioned. Cap and rotor decline via usage as a rule so how many miles on them? DO retain both items as spares, replacement parts can be dodgy and fail without warning, as I found when stranded in the Oregon countryside for days owing to rotor dielectric burn-through. Would have been a breeze to resolve had I carried known pieces for back-up. 

Cheers 

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