• 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 seals

  • Thread starter Thread starter gsryder
  • Start date Start date
G

gsryder

Guest
I am rebuilding a 81 GS1100.

I have a good head that came off a low mileage rebuilt engine, but the PO had it running a little to rich and it is carboned and gunked up.

I just want to clean/lap the valves do I need to replace the valve seals or are they reusable.
 
I struggled with the same question last year on my '81 1100E when I had the head off to replace the head gasket.

I ended up replacing the valve seals (aftermarket from Z1), rings, base & head gaskets, honed the cylinders & lapped the valves after wirebrushing all the carbon off.

I figured as long as I was in there I might as well do it all - adds more $ and time, but the peace of mind is worth it.
 
^^^^
What he said. One tends to get a case of the "might as well" or "easier to do it now, then later" when redoing one of these bikes.......:)
 
Okay just ordered new seals, I guess you are right I have redone every other nut and bolt on the darn thing. I guess after a while and so much money you start to think "do I really need this???"
 
While the head is off it's highly recommended to replace the base gasket and any O-rings that might be underneath the cylinder. A leakage on these parts means you are going to have to pull the head off again, and head gaskets are expensive.
 
Nessism said:
While the head is off it's highly recommended to replace the base gasket and any O-rings that might be underneath the cylinder. A leakage on these parts means you are going to have to pull the head off again, and head gaskets are expensive.
Click to expand...

Everything going back to together is either new, refurbished, or heavily modified....thinking back now I dont even know why I asked.....I guess I was having a momentary relapse of being a cheap azz!
I havent posted in a while and I will update on my build in a while after I start bolting some more stuff together
Bikestuff005.jpg

Bikestuff001.jpg

Bikestuff004.jpg

moreprogress001.jpg
 
So you are throwing on a fuel injection system? How well does that work with these old bikes? Does it have a computer system or something to throw in there too?
 
You must log in or register to reply here.

Similar threads

crazyramen
Low Compression in 3 Cylinders 100 Miles After Rebuild
Replies
16
Views
271
rphillips
R
E
'79 GS850 - One Year Ownership & Maintenance Summary
Replies
3
Views
70
emlivings
E
F
Engine Knock
Replies
19
Views
263
DimitriT
DimitriT
C
Identifying seal 81 750
2
Replies
24
Views
260
Crankthatback
C
S
Grime in Valve Cover
2
Replies
35
Views
462
rphillips
R
Back
Top