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Kawasaki Jimbo
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PostPosted: 16:48 - 09 Jan 2022    Post subject: Feeler gauge. Reply with quote

I’ve just bought a 32-blade feeler gauge of carbon steel (according to the pack) but there are two 0.25mm (.010”) with one being brass. What’s the brass one for?

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Nobby the Bastard
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PostPosted: 16:59 - 09 Jan 2022    Post subject: Reply with quote

It's antimagnetic so something that needs to be measured but also is affected by magnetism or is magnetic?

Found this

'This is because early models of electronic ignition systems had a requirement that the air gap between the reluctor and the pickup had to be set with a non-ferrous metal (any metal that does not contain iron).'
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weasley
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PostPosted: 17:01 - 09 Jan 2022    Post subject: Reply with quote

From Wikipedia:

Quote:
Stainless steel is a common material for feeler gauges. Some feeler gauge sets have a single blade of brass due to the historical reason that early electronic ignition systems required the air gap between the reluctor and the pickup part being set with a non-ferrous metal.

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virus
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PostPosted: 17:02 - 09 Jan 2022    Post subject: Reply with quote

Brass gauges are for use where magnets are involved like setting ignition pick up Hall effect sensor gaps.
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WD Forte
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PostPosted: 17:05 - 09 Jan 2022    Post subject: Reply with quote

That's reminded me to get myself a new set of feelers
the brass on is handy for the above reasons
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stinkwheel
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PostPosted: 18:21 - 09 Jan 2022    Post subject: Reply with quote

You use brass ones to set the gap between the rotor and stator on lucas alternators so they don't stick to the magnetic rotor.

Although I've found a shim made from an aluminium beer can is quicker and easier.
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Polarbear
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PostPosted: 00:30 - 11 Jan 2022    Post subject: Reply with quote

They look nice when you polish them up. Thumbs Up
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