• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

Crankshaft big end/small end on 1100

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

Guest
I've several references to 1100 cranks having a big end or a little end on the left side. Think the change occured from 82 to 83 and maybe on the 82 Katana.
Does this mean that they will not interchange or is just the journal larger but the outside diameter on the bearing the same?
 
I think they are talking about the end where the alternator rotor goes on. The early models had trouble with the rotor coming loose and breaking the end off the crank. They changed the end of the crank, and the rotor itself. They did start welding the crank pins in mid "82", but I'm unaware of any journal size or bearings being changed.
 
OK. I got the impression from what I've read and they way it is referenced that the diameter of the journal was increased to stop the breakage, but I don't for sure.
Thanks.
 
pjackson, my experience says the change in the crankshaft end diameter was made beginning with the ES model only in 1983 and continued thereafter on the GS1150s. The 1983 GS1100 ES was the white one with the blue stripes and small fairing. The standard GS1100s in 1982 and 1983 (non ES model) all had the smaller end.

The change was to increase the diameter of the cylindrical portion from 25mm diameter to 29mm. I don't know what change this made to the taper on the crank or its mate on the alternator hub. Otherwise the cranks are identical for 1982 and 1983.
 
I've got an 83 1100ED and an 82 1100EZ (parts bike) The only difference in cranks is the 82 has a smaller end (and the 83 is welded). Taper and cylindrical part of end. The rotor assembley has a smaller center to match. I believe race shops like Falicon typically install the bigger end when they rebuild cranks. This would mean buying a new rotor or boring out the smaller '82 rotor.
 
You must log in or register to reply here.
Back
Top