RCU Forums - View Single Post - ASP 21 GOING CRAZY trying to find the propnut size and thread count??? HELP

07-10-2009 | 02:16 PM

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DarZeelon

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From: Rosh-HaAyin, ISRAEL

RE: ASP 21 GOING CRAZY trying to find the propnut size and thread count??? HELP

Quote:

ORIGINAL: rsieminski

Agreed, but is there even a possibility that it wouldn't be a std size. I mean it's not 5mm, and it's not 1/4 x 24. Therefore I thought it had to be 6mm??

Rick,

I guess you meant 1/4"x28... This is UNF... 1/4"x24 is UNC and will be more likely to loosen...1/4"x20 is UNEC, like those used to connect parts of shelf cabinets, as well as plastic wing-bolts.
1/4"x32, on the other hand, is UNEF. Glow plugs have this thread.

I would consider it very unlikely for a clone manufacturer like Sanye (they make ASP, Magnum, SC and SY engines that are cloned after OS in China), to make an engine that has a non-standard thread size... Even they outsource their prop-nuts from a manufacturer of fasteners...

Can you imagine what would happen, if the known-size prop-nuts they get would not thread on the crankshaft???
Or if a buyer of an engine they make would not be able to find a replacement nut in a hardware store, or have to pay them ~$20 for an *original* prop-nut...

They would not be selling, because no-one would be buying...

It is surely a standard size - you just have to determine which one...

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