1949 WL - Main Output Shaft Sprocket Threads

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1962300
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1949 WL - Main Output Shaft Sprocket Threads

#1

Post by 1962300 »

Hello & Happy New Year....

Working on final assembly for the transmission rebuild.
The male threads on the Main Output Shaft are not as clean as they should be.
Ordered a new Nut & it threads on a turn & then doesn't want to proceed as it should feel.

Does anyone sell the Harley only thread chaser Dye; so I can clean up the shaft threads?
It is 3/4-18.

Thanks!
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#2

Post by 59Panman »

Check Amazon.
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#3

Post by RooDog »

Is that right hand thread, or LHT as found on the big twins?

https://www.ebay.com/itm/372739930224?h ... SwhFpdVjUP
....RooDog....
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#4

Post by 1962300 »

It is a right hand thread.

Now I'm trying to confirm if it is....
3/4-18
OR
11/16-18

The Nut is part #8010.
Now upon further research me thinks its 11/16-18
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#5

Post by RooDog »

eBay is still the place to look.
I have even found Harley's fave 1/4-24 taps & dies there.....
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#6

Post by animal12 »

Give these folks a spin they have them
https://www.westtool.com/search#/catalo ... 2024%20tap
https://www.westtool.com/catalogue/product/652694

the stuff I have bought from them was good stuff & prices are good , another place I like to deal with is
https://www.msdiscounttool.com/catalog/ ... 2F4+24+tap

they used to be if it all fits in a flat rate box that's all ya get charged for on shipping , not shipping for each item

animal
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#7

Post by Andygears »

If the threads aren’t too buggered and the nuts are relatively available, cheap, you can make a “poor man die”. By making a cut axial through the a spare nut, spring it open with a screwdriver, or wedge, then work it on the thread using the cut face to clear the offending part of the thread. Time and patience works wonders. A die is likely to be expensive.

Andygears
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#8

Post by RUBONE »

There are 3/4-18 taps and dies on eBay for a wide variety of prices..a search pulled up 129 items.
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#9

Post by 1962300 »

Thanks all.
The nut I bought is 11/16-18; which I now assume the Main Output Shaft threads to be the same.
(versus the 3/4-18, that I initially thought I was playing with)

So yes...
I see Die's all over eBay.
Easy enough!

Thank you !
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#10

Post by RooDog »

A caliper and a thread pitch gauge would answer a lot of questions.
Now is it right hand, or left hand thread? Please tell me as I'm not a 45 person....
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#11

Post by 1962300 »

Right Hand Thread
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#12

Post by RCamp »

It is a 11/16-18 class 5 right hand thread. The class 5 thread will make the nut very tight as it goes on.
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#13

Post by 1962300 »

I have confirmed, with a pitch gauge, that it is a 18 PITCH.
BUT....
Can anyone confirm if it is 3/4 versus 11/16?
Thanks
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#14

Post by RUBONE »

The previous poster, R Camp told you. He is probably the best known restorer/rebuilder of 45 transmissions in the US and supplies virtually every vintage racer with services.
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Re: 1949 WL - Main Output Shaft Sprocket Threads

#15

Post by 1962300 »

OK. Thanks
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