Headlamp mounting...?

Information relating to the Matchless G80 or AJS Model 18 500cc Heavyweight.
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Headlamp mounting...?

Postby Pharisee » Sat Nov 09, 2019 4:26 pm

The mounting holes in my '55 M18S headlamp shell are 7/16" diameter. The holes in the mounting arms are 1/2" diameter.
First question... it's the correct headlamp (with speedo mounted in it) so have I got an incorrect set of top fork shrouds?
Second question... the parts list mentions spacers (014340) between the headlamp and mounting arms but these aren't listed on the AMOC Spares website, nor could I find them in any of the AMC Classic Spares lists. Can anyone tell me what these spacers look like... possibly with dimensions? Do they reduce the mounting arm holes down to 7/16"?
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Re: Headlamp mounting...?

Postby ajsph » Sat Nov 09, 2019 4:37 pm

The spacer 014340 is only used on the competition models with the smaller headlamp.
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Re: Headlamp mounting...?

Postby Pharisee » Sat Nov 09, 2019 4:40 pm

ajsph wrote:The spacer 014340 is only used on the competition models with the smaller headlamp.
Poul


Yes... I see that now. Thanks.

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Re: Headlamp mounting...?

Postby dave16mct » Sat Nov 09, 2019 4:42 pm

You have a headlamp for sidelights and headlamp brackets (post '57) for models with no sidelights. The spacers are for competition bikes with the smaller headlamp.

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Re: Headlamp mounting...?

Postby Pharisee » Sat Nov 09, 2019 9:12 pm

dave16mct wrote:You have a headlamp for sidelights and headlamp brackets (post '57) for models with no sidelights. The spacers are for competition bikes with the smaller headlamp.


I suspected something like that... I think whoever put this one together was a Johnny Cash fan... One Piece at a Time!!

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Re: Headlamp mounting...?

Postby Mick D » Sun Nov 10, 2019 7:32 am

Hi

An easy if unconventional fix is to fit a suitably sized O ring onto the bolt after the washer - the O ring then centralises the bolt in the ear and will compress into the ear hole to allow the ear / headlamp shell to clamp up.

Regards Mick

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Re: Headlamp mounting...?

Postby Pharisee » Sun Nov 10, 2019 9:12 am

Mick D wrote:Hi

An easy if unconventional fix is to fit a suitably sized O ring onto the bolt after the washer - the O ring then centralises the bolt in the ear and will compress into the ear hole to allow the ear / headlamp shell to clamp up.

Regards Mick


THank you, Mick... I hadn't thought of something that simple. :oops: :D

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