• 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.

Engine won't rotate past TDC.

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

Anonymous

Guest
The engine I am rebuilding will not rotate past TDC on either cylinder (only a 2 cylinder engine). This came about after installing the cams. I double checked to make sure the cams were installed properly, one intake valve has more than .1 mm clearance. Could this be the issue?
 
If it won't rotate past TDC on one cylinder, how do you know it won't on the other (since it won't get past the first one)? Maybe I'm missing something here. 0.1mm valve clearance? Do you mean at the stem?

It sounds like you have the cams in wrong. The exhaust valve is opening thinking its at BDC on the exhaust stroke and you are at TDC on compression and it's hitting.
 
I rotate clock wise and it stops at TDC on one cylinder and then rotate counter clockwise and it stops at TDC on the other cylinder. In the clearance I am talking about the shim to rocker clearance.
 
Ok, then I stand by my prognosis. Ill bet if you look at the exhaust valve on both cyliners it's opening when they are at TDC.
 
Yeah, I am a dumb a$$. I read the manual wrong on cam installation. I read it as you point the arrow w/the 1 beside it upwards. I read that thing 3 times and kept reading it the same way. You put the arrow pointing towards the front of the engine with the arrow even with the gasket surface or 1-2mm below.
 
The one with the 1 on it is the exhaust cam....the arrow goes towards the front of the bike.
The one withe the 2 and 3 on it is the intake cam.
These 1,2,3 marks should be read from the right side of the bike.
Make sure you readjust the cam chain tensioner.
Make sure everything is free and clear before trying to fire it.

Dr. Dre
 
You must log in or register to reply here.
Back
Top