• 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.

oil leak in #4 cylinder (valve seals leak) --> how long does it take to stop smoking

  • Thread starter Thread starter boris.h
  • Start date Start date
I think im ok with compression. But in case i will try to remplace the full set of rings in that cylinder.
 
Moreover:
- there is a nice cloud of smoke just after starting the bike...
That symptoms show a valve stem seal leak, but i already tried viton ones, or oem suzuki ones... same effect, no change. Even the valves are new... there is only the head gasket i re used few times for torquing and re torquing...i suspect it, but i can not say where could it leak...
 
So far everything is new but the head gasket.

"The last think I suspect, I re-used the same head gasket, which I re-torqued few times (3 / 4 times). the bike runs on the 4 cylinders, so I do not suspect the gasket leaking, but maybe this is a mistake and I have to buy another one..."

You might want a new OEM head gasket.
 
Why would you replace all those parts, and then use the old head gasket?!
 
It was in case of an engine rebuild, the head gasket was brand new but when i had that issues on the 4rth cylinder i re used it because i did only few km (less than 50) and it still had a great shape...
But i asked myself how could it be the head gasket because i have no burnt trace after the metallic rings of the gasket, so i assumed he did its job. That is the only part i did not change since the engine rebuild. Could it leak oil by "inside"?
 
It was in case of an engine rebuild, the head gasket was brand new but when i had that issues on the 4rth cylinder i re used it because i did only few km (less than 50) and it still had a great shape...
But i asked myself how could it be the head gasket because i have no burnt trace after the metallic rings of the gasket, so i assumed he did its job. That is the only part i did not change since the engine rebuild. Could it leak oil by "inside"?
 
I misread the new gasket being reused and the problem existing with the new one.

As mentioned earlier, you should get a compression tester and see where you're at.

Did you test the head for cracks after it was milled?
 
The gasket was new (aftermarket one....) but i torqued it once before the first start to check valve/ piston gap...
Then i torqued it again. I still do not see where could the head gasket leak... maybe from o rings to combustion chamber when idling /staying cold... i ordered a suzuki new one. This morning i will check again the valve /guide gap, check again if there is not any part of older valve seal which could remain and could not allow the new one sit properly on the guide...i am pretty sure that oil could leak in the combustion chamber using gravity (that could cause the big oil cloud when starting), so i am pretty sure that could be from " above" the head gasket, head gasket included...will check one more time....
 
ok think I found it --> excessive radial play between the exhaust valve (brand new, diameter in specs) and the valve guide... When I put the valve at 10mm from the seat, there is a lot (too lot for me) radial play. Ordered a new valve guide. Wait and see....
 
on the 4rth cylinder: 0.15mm for intake, 0.35mm for the exhaust..... waiting for guides....
 
You must log in or register to reply here.
Back
Top