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Cotter pin for oil filler cap

295 Views 3 Replies 3 Participants Last post by  Dounraey
I'm in the process of replacing the cork sealing disc on the oil filler cap (Number 8 in the diagram). Problem is the cotter pin (12) used to secure the nut (11) is only 1/32" in diameter and I can't source any. Flying Spares list the part ( X4648Z) as no longer available.

So shall I use fuse wire to secure the nut. How about threadlocker. I really don't want this nut to work loose over time and fall into the engine, along with the spigot washer. What's the collective wisdom on this?


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1/32 Cotter Pins 18-8 Stainless Steel – FMW Fasteners

Extended Prong Cotter Pins | Fastenal Canada

Fastenal also has a US site of course.

You'll have to buy a box, but they're not expensive.

A beading supply place will have brass wire thin enough to make your own pin, maybe even too thin.
Thread locker may dissolve away from gasoline fumes.
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