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Strange gear cover screws

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Piotra

Posts: 17

Joined: Sat Nov 07, 2009 11:06 am

Location: POLAND

Post Thu Sep 01, 2011 12:38 am

Strange gear cover screws

I try to complete WLA motor cases. I have a problem with screws in gear cover. Part List shows that for relief pipe there should be 10-32x1/2" (catalog number 036) and for shaft timer 12-24x7/8" (part number 044). When I try screw this sizes it does not fit! For timer shaft ideal are 10-32 and for relief pipe I can't figure out. What sizes of these screws do you have? Is there a mistake in parts catalog (TM-10-1482)? If there would fit bigger screws that these supposed to be I would think that somebody increased size because destroyed thread. But in my case there fit smaller size! (sorry for my english, I'm Polish).

Piotr, POLAND
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Pa

Site Admin

Posts: 4719

Joined: Sun Mar 12, 2000 1:01 am

Location: Ohio USA

Post Thu Sep 01, 2011 10:32 am

Re: Strange gear cover screws

My book calls for timer mounting screws as 042A., 12-24NC x 1/2". And for relief pipe, 036, 10-32NF x 1/2".
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Piotra

Posts: 17

Joined: Sat Nov 07, 2009 11:06 am

Location: POLAND

Post Thu Sep 01, 2011 12:10 pm

Re: Strange gear cover screws

So, your book says the same what mine. But it still does not explain why these sizes do to fit in holes in my gear cover.
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amklyde

Posts: 625

Joined: Fri Dec 19, 2003 1:01 am

Location: Wisconsin, USA

Post Sun Sep 04, 2011 7:32 am

Re: Strange gear cover screws

Piotra, Is it possible someone has installed a helicoil or some other thread insert in order to use screws availableto them?

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