How can I tell if 500 single crankcases are a pair

Information relating to the Matchless G80 or AJS Model 18 500cc Heavyweight.
Locked
Hotspurr
Member
Posts: 11
Joined: Sat Jan 01, 2000 12:00 am
Location: WASHTENAW, MICHIGAN USA

How can I tell if 500 single crankcases are a pair

Post by Hotspurr »

I have a 1957 AJS Model 18cs 500 single. I suspect I might not have a matched set of crankcases. Is there a way to tell if they are matched? For example, some manufacturers stamp the cases with sequential numbers. Did AMC do anything like this? Any insights would be appreciated. Cheers, Norm Roller, Ann Arbor, Michigan USA.

User avatar
Colin F
Member
Posts: 936
Joined: Mon Jan 01, 1990 12:00 am
Location: NORWICH UK
Contact:

How can I tell if 500 single crankcases are a pair

Post by Colin F »

The cases were normal;ly stamped internally with a 3 digit number. This should be the same on both cases, Normally the timing chest cover was matched as well carrying the same numbers to ensure the camshaft bushes were bored in line.

Locked