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Wasp .049 Rear Crankcase / Tank screw & nut size? Cox_ba12




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Wasp .049 Rear Crankcase / Tank screw & nut size?

Cox Engines Forum  :: Engines :: Non-Cox Engines

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Help! Wasp .049 Rear Crankcase / Tank screw & nut size?

Post  High_Rev Wed Dec 28, 2022 1:32 pm

Hi All, I just found some old engines belonging to my uncle, and one is an Atwood Wasp .049. The only items missing are the screws that hold the tank on. Can anyone tell me what the size/thread is? It isnt 4-40....

Thanks in advance!

Jim
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Help! Re: Wasp .049 Rear Crankcase / Tank screw & nut size?

Post  batjac Wed Dec 28, 2022 2:12 pm

Sorry, I don't have access to mine, but here's the SceptreFlight review of the engine:

Atwood Wasp

The Disorganized Mark
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Help! Re: Wasp .049 Rear Crankcase / Tank screw & nut size?

Post  Ken Cook Wed Dec 28, 2022 3:08 pm

They're 3-48. Not always a easy find however especially over 1". However, the tank doesn't require them that long..
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Help! Re: Wasp .049 Rear Crankcase / Tank screw & nut size?

Post  High_Rev Mon Jan 02, 2023 1:58 pm

Thanks Ken, McMaster Carr had them. Got them on the way!
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Help! Re: Wasp .049 Rear Crankcase / Tank screw & nut size?

Post  Ken Cook Tue Jan 03, 2023 3:53 am

I'm not sure how they do it, but if I order from Mcmaster Carr in the evening the items are on my doorstep the following day.
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Help! Re: Wasp .049 Rear Crankcase / Tank screw & nut size?

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