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Douglas 1915 3 Spd-Gearbox and Clutch

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A31 clutch removal tool

Started by SweetNigel, 04 Dec 2024 at 12:13

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SweetNigel

04 Dec 2024 at 12:13
Can anyone tell me please the dimensions of a flywheel clutch removal tool for my A31 engine?
Specifically, what is the thread and diameter of the tool needed on the flywheel?
I can attempt to then make a tool, but if anyone has such a tool they can lend me or sell to me....

EW-Ron

#1
05 Dec 2024 at 00:16
Without having seen one, its a bigger version of this ?
Or possibly a 3 jawed one.

https://img.kwcdn.com/product/fancy/eaf029a1-8754-4191-a2eb-529849c79ae3.jpg

Its the centre bit that a whack shocks the flywheel loose thats the important bit...

Doug

#2
05 Dec 2024 at 04:03 Last Edit: 05 Dec 2024 at 04:12 by Doug
The LDMCC sold these at one time and there ought to be some floating about, in the UK at least.

It is a 1.445 x 26tpi thread.

Here is a post on the dimensions to machine the extractor.
https://www.douglasmotorcycles.net/index.php?msg=6560

It is for the EW, but the A31 uses the same thread size.

-Doug

EW-Ron

#3
05 Dec 2024 at 04:58
Aha, an extractor of entirely a different variety.

SweetNigel

#4
05 Dec 2024 at 12:09
Quote from: Doug on 05 Dec 2024 at 04:03 The LDMCC sold these at one time and there ought to be some floating about, in the UK at least.

It is a 1.445 x 26tpi thread.

Here is a post on the dimensions to machine the extractor.
https://www.douglasmotorcycles.net/index.php?msg=6560

It is for the EW, but the A31 uses the same thread size.

-Doug
Thanks for this, and the help by email from Roy Staunton pointing to another possible extractor method - much appreciated. 
I'm also in contact with LDMCC pre war spares officer to see if any remain lurking in his stock.
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