• 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.

Valve clearance check after a valve job

  • Thread starter Thread starter rwcfrank
  • Start date Start date
R

rwcfrank

Guest
Hey everyone, I tried a search but there were too many opinions to sift through and I need a short straight reply. I am having a valve job done on my 78 GS750 2 valve. Once it's back how do I determine the very first try at shim thickness. Is there a trick to it? Right now a few of the valves had just about zero lash.
 
Put in a much smaller shim and measure the clearance, you can then figure out the correct size.
 
Not sure about the seats, I reckon if it needs new seats I will find a lower mileage head and have that ground. I took the head off today and the cylinders look incredible, I can still see the cross hatch. the valves dont look quite as good but I will know more after disassembly. This mind you is a bike with 80,000 and it was puffing just a little on the right side after 5 years of rest.
 
rwcfrank said:
I can still see the cross hatch. the valves dont look quite as good but I will know more after disassembly. This mind you is a bike with 80,000
Click to expand...

That's how they roll, usually. 80,000 is not much for these engines.


rwcfrank said:
and it was puffing just a little on the right side after 5 years of rest.
Click to expand...

Probably a thousand miles of hard riding would have fixed the puffing.

Resting is not good.
 
Okay then, here is the cheap in me coming out. I think I should change the cylinder base gasket to avoid leaks. Dare I ignore a ring job and just clean the ring grooves?
 
rwcfrank said:
Okay then, here is the cheap in me coming out. I think I should change the cylinder base gasket to avoid leaks. Dare I ignore a ring job and just clean the ring grooves?
Click to expand...

What do the rings look like? How was the compression before you took it apart?
With all of the cross hatching still there, there can't be much wear, but on the other hand, rings are cheaper than doing it again next year, and breaking in new rings is fun:D Any excuse to haul ass is fun.

Yeah, hone the cylinders and replace the rings.
 
You must log in or register to reply here.
Back
Top