Exhaust silencer mount stud thread size?

Nicholas Hugill. · Post by **Nicholas Hugill.** » Wed Mar 30, 2005 12:07 pm

Hello,
Does anybody out there know what the thread size is of the stud that secures the silencer on a 1960 AJS 18s. It's the one at the offside pillion footrest.
I don't have access to the bike as i work abroad, but i want to order a die to re-cut the threads. I know it's Cycle thread but i'm not sure of the diameter (1/2,3/8 ?).
The old nut has dropped off and the exhaust bracket has mashed the threads up.

Kind regards.
Nick

Biscuit · Post by **Biscuit** » Thu Mar 31, 2005 3:25 pm

The '54 G3LS and the '56 G11 both have 3/8" studs at this point.

Nicholas Hugill. · Post by **Nicholas Hugill.** » Thu Mar 31, 2005 6:15 pm

Thanks Alan,
Cycle thread die's don't seem to be the cheapest item on the market so i will get them as and when needed.

Nick

Charles · Post by **Charles** » Thu Mar 31, 2005 7:44 pm

My 1961 18S has a 5/16 by 26tpi on it by the O/S pillion footrest.

Charles

Tolly · Post by **Tolly** » Thu Mar 31, 2005 8:01 pm

Nick,
Try Tracy Tools for taps and dies, they are advertised in the Old Bike Mart and are very reasonable in price. I bought a full set of both a couple of years ago and, although they are not top quality, they are still going strong.
No connection by the way!

Mike T

Nicholas Hugill. · Post by **Nicholas Hugill.** » Fri Apr 01, 2005 6:50 am

Mike,
Thanks for the info, i will give them a try.

Nick

Eric · Post by **Eric** » Fri Apr 01, 2005 8:38 pm

Why not just removed the old stud and fit a new one. I think it maybe 5/16" cycle if its the same as my 1960 G9.