WNG long twistgrip

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alan.moore
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WNG long twistgrip

Postby alan.moore » Fri May 24, 2019 2:22 pm

Looking at period pics the WNG twistgrip it is quite a bit longer than the standard Amal type. I have read on another forum that they were 7" long (inc the housing) compared to 5 1/2 for the normal one you see, and the photos seem to bear this out. The extra length is present whether it has a rubber grip or the later canvas one. The 'dummy' grip on the left side is also longer than normal, about 6 inches compared to 4 1/2 normal.

Looking at the parts books the dummy grip 6430K-39 is the same part number for the WNG AND the 1939 singles meaning the singles must also have had the longer grips fitted ?.

The twistgrip assembly is 6430-40 for the WNG and 6430-39 for the singles. I am assuming the difference is because the WNG did not have a chrome plated housing but could be wrong?

The 1944 WNG parts book gives an Amal part number for the twistgrip 16/117C....the C I think is for canvas. It is still the long version as shown in the bottom image of an original 1944 WNG. There are 16/117’s listed on Ebay but they are the short ones.

I have tried Drags, they list a 6430-40 for WNG but theirs is 5 inches long, as is their 6430-39 (same parts) listed a superseded so not the original spec.

So...does anyone have any leads on where I can get a longer twistgrip? I saw a NOS with canvas grip went for £102 on Ebay earlier this year !!



ats wng 1.jpg

navydespatchriderscu1.jpg
navydespatchriderscu1.jpg (55.78 KiB) Viewed 5421 times

vlcsnap-00006.png
1944 canvas


Cheers
alan
1939 VH Redhunter;1942 RN WNG;1951 Triumph 6T Thunderbird;1970 BSA B175 Bantam;1986 Yamaha SRX600 single
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dave.owen
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Re: WNG long twistgrip

Postby dave.owen » Fri May 24, 2019 4:26 pm

Try Stuart Bray, he lists a lot of wd parts.
And deals in ex wd bikes.

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Re: WNG long twistgrip

Postby nevhunter » Sat May 25, 2019 12:18 am

That part number goes right back to the 40 models .I can't see a problem lengthening the shorter one. Does anyone have the dimensions of both.? Nev

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LuisPaz
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Re: WNG long twistgrip

Postby LuisPaz » Sat Apr 18, 2020 11:19 pm

IWM picture found

Image

https://www.iwm.org.uk/collections/item ... /205526139

Anyone enlarge the classic short grip or are difference?

Regards
Luis, from Argentina
1944 Ariel WNG

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ray.tolman
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Re: WNG long twistgrip

Postby ray.tolman » Sun Apr 19, 2020 3:36 pm

Why don't you make one? I purchased a stock piece of aluminum seamless pipe on e-bay and machined to size. The brass part is pressed on, as the original.
Ray
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Last edited by ray.tolman on Sun Apr 19, 2020 11:14 pm, edited 2 times in total.

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LuisPaz
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Re: WNG long twistgrip

Postby LuisPaz » Sun Apr 19, 2020 3:57 pm

Hi Ray!
Many thanks for the pics.
Can tell me the lenght of the tube?
Luis, from Argentina
1944 Ariel WNG

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ray.tolman
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Re: WNG long twistgrip

Postby ray.tolman » Sun Apr 19, 2020 4:32 pm

Hi Luis.
You will have to get dimensions from one of the W/NG guys.
The one I made was for a civilian Ariel having 1" handlebars.
I did have to enlarge the inner diameter slightly and machine the outer to match the original.
Make it a bit on the longer side. It will be easy to cut to proper length later.
This is not a difficult job, if you happen to have a lathe or access to one :-)
Ray

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LuisPaz
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Re: WNG long twistgrip

Postby LuisPaz » Sun Apr 19, 2020 5:31 pm

Thank you Ray, i have a lathe.... i have 2 Lathes! :lol:
One in my house
Image
One in workshop
Image



Alan above say the lenght, but know the correct tube length , it would be better!
Luis, from Argentina
1944 Ariel WNG

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ray.tolman
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Re: WNG long twistgrip

Postby ray.tolman » Sun Apr 19, 2020 10:41 pm

Hi Luis,
I would make the part over length by an inch or so and press the brass cable holder on. I would then check the inner depth of the canvas or rubber grip you will be installing.
This should give you a pretty accurate length. Find out what is the standard, stock length for the long twist grip mechanism to be sure you are within the ball park.
BTW, nice lathes. I used a South Bend "Model A" similar to your green one.
Ray

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Re: WNG long twistgrip

Postby simon.holyfield » Sun Apr 19, 2020 10:50 pm

Did you make the brass bit for the cable Ray? Lathe plus rotary table in the mill perhaps?
cheers

Simes

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