GStwin.com GS500 Message Forum

Main Area => General GS500 Discussion => Topic started by: shaky on October 21, 2003, 10:54:39 PM

Title: Valve seat resurfacing
Post by: shaky on October 21, 2003, 10:54:39 PM
I had the valve seats from the cylinder head resurfaced and I was wondering if anyone knew whether or not I would have to adjust the valves afterward.

Thanks
Title: Valve seat resurfacing
Post by: Mumu on October 22, 2003, 04:50:35 AM
Yes, you will DEFINITELY want to check the clearances before you start it and they will most probably need to be adjusted.
Title: Yes..
Post by: The Buddha on October 22, 2003, 07:36:18 AM
You mean lapped... what exactly you mean by re surfaced... and why did you do it... In 41K+ mine seems to actually have a decent head (atleast 1 part of the bike isn't threatening to give up... Hallelujah)... People seem to run out of shims on the thin side... so make sure you do get the shims you need... I think 215 or so is the thinnest.
Cool.
Srinath.
Title: Re: Yes..
Post by: shaky on October 22, 2003, 07:34:30 PM
Quote from: seshadri_srinathYou mean lapped... what exactly you mean by re surfaced... and why did you do it... In 41K+ mine seems to actually have a decent head (atleast 1 part of the bike isn't threatening to give up... Hallelujah)... People seem to run out of shims on the thin side... so make sure you do get the shims you need... I think 215 or so is the thinnest.
Cool.
Srinath.

Basically I meant the same thing. But, for a different bike ('94 VFR) at 47k. I found a loss of compression, removed the head, found a leak at the valves, and had the valve seat resurfaced by a machinist. Now I get to buy a cylinder head gasket, exhaust gaskets, and eight shims=big $'s. And I hope that the aluminum head won't receive any stripped threads in the process.