long bolt

Information relating to the Matchless G5 or AJS Model 8 350cc Lightweight
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Rupert123
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Posts: 59
Joined: Sun Nov 06, 2016 10:10 am
Location: BEDFORSHIRE UK

long bolt

Post by Rupert123 »

Hi,
I am missing a crankcase bolt on the primary side , 042036 crankcase bolt long ,the club spares only sells the bolts in a set ,they are out of stock at the moment.
I just wonder does anyone know the length of the bolt and is the thread 5/16" B.S.F.

Regards,
Martin.
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dave16mct
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Joined: Mon Jan 01, 1990 12:00 am
Location: LANCASHIRE UK

Re: long bolt

Post by dave16mct »

You don't say what year but if it's fifties /sixties the bolt measures 4 5/32x5/16x26 BSCY It has a thin head and don't use a washer under the head
You can see a parts list for your year here : http://archives.jampot.dk/book
Dave.
Rupert123
Member
Posts: 59
Joined: Sun Nov 06, 2016 10:10 am
Location: BEDFORSHIRE UK

Re: long bolt

Post by Rupert123 »

Hi Dave,
Thanks for your reply ,sorry i forgot to put the model and year in the message.
It is a 1960 350 G5 looking at the parts list and exploded diagram there are six short crankcase bolts and washers and one long crankcase bolt and washer all have thin heads ,i could not find the parts list with the bolt size.
I measured the depth of the hole with a vernier it is 3 13/16 , i have made a blank bolt and need to order a die.
I shall continue searching through the parts lists in the archives.
Thanks for your help ,
Martin.
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