• 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 Results. Normal?

  • Thread starter Thread starter huntb
  • Start date Start date
H

huntb

Guest
I checked my valve clearances last night and got some strange results.

Ex1 and In1 were both at 0.0015"

The other six were all less than 0.001" and I didn't have a feeler gauge less than a thou.

Obviously those six are out of spec, but has anyone seen that many valves out on the low end like that?
 
I am not an expert, but from what I understand the clearances get smaller as the valve wears. Basically as the valve wears away, the stem will get pulled closer to the cam, so the tolerance between the shim and cam get smaller.

I just checked my valves yesterday, and 6 of the valves are tighter then .04mm (1.5 thou), I4 was .05mm, and E4 was .08mm.

Looks like i will be joining the shim club soon.

http://www.cycleorings.com/gs850valve_adjust.pdf

Cheers,
Shawn.
 
Yeah, I guess my bike has over 20k miles on it and I have a hard time believing they ever got checked. I'm the third owner of this bike (technically only the second because the real second owner never even signed the title or registered it)
 
**Important***Just make sure you check the valves using the Suzuki manual method or the way described on Basscliffs site. NO Clymers.
One other tip the guys here say is that if you cant get a feeler in there, do this:
With the cam in the proper position to check the gap, if you can spin the bucket easily, change by one size, if you cannot spin the bucket easily, change by two sizes....this will put you back in spec.
 
As long as you checked the clearances with the cams in the proper positions, those numbers are typical, and they should ALL be changed.

The problem is that you don't know exactly how much on six of them. You might get by with one shim size, you might need two. :eek:

Take your thinnest shim (you did inventory them, didn't you?), put a quarter in its place, move it to the other spots to see if you have enough clearance.
If your thinnest shim is too thin, you will have extra clearance, but that is easier to measure than negative clearance. :-\\\

.
 
the valves wear into the valve seat thus causing you to lose clearance/lash.
if the stem tip wore then you would have increased clearance/lash.
 
Steve said:
As long as you checked the clearances with the cams in the proper positions, those numbers are typical, and they should ALL be changed.

The problem is that you don't know exactly how much on six of them. You might get by with one shim size, you might need two. :eek:

Take your thinnest shim (you did inventory them, didn't you?), put a quarter in its place, move it to the other spots to see if you have enough clearance.
If your thinnest shim is too thin, you will have extra clearance, but that is easier to measure than negative clearance. :-\\\

.
Click to expand...

I used the guides on Cliff's website and had the cams in the proper positions, and yes I used your spreadsheet to inventory them. I guess I never thought of putting a quarter in there (didn't think it would work) and changing them around.

I will try that method using my thinnest shim, but so far I'm planning on replacing at least 7 of them
 
Confession of an amateur hack... Don't turn the cams with no shims in:-\\\ The bucket retaining ring(?) gouged the edges of my lobes. Hopefully the cams won't be to out of balance.

On a side note all of my 8 valves measured under .02mm clearance!
 
Mr.Mom said:
Confession of an amateur hack... Don't turn the cams with no shims in:-\\\ The bucket retaining ring(?) gouged the edges of my lobes. Hopefully the cams won't be to out of balance.

On a side note all of my 8 valves measured under .02mm clearance!
Click to expand...

This is what happens when people don't do maintenance. Hopefully the valves aren't all burned up.
 
You must log in or register to reply here.
Back
Top