Head bolt orings

[bonanzadave]

AS568A Dash Number
115

3/32" .103"
Inside Diameter
11/16"
Actual Inside Diameter
.674"
Outside Diameter
7/8"
Actual Outside Diameter
.880"
Material
PTFE
Temperature Range
-100° to +500°F

Sorry, the pic sux for measurements but Im familiar with oring sizes.

Its a -115. Equates to the measurements posted. The stock orings are probably the same parts from 1982. They have come along way since then with manufacturing materials. The posted orings are teflon (PTFE). Look at the temp range. These orings I got from Slozuki look like hardware store parts.

This of course is just my humble opinion .

[bonanzadave]

Take out & replace ONE AT A TIME so you don't affect the head torque.

Ray, my Valve cover is off (Valve adj) . Im changing the 2 orings. Should I do anything to the other head bolts / nuts ? Re torque ? I have new tach drive seals. Anything else to look for while shes opened up ? Thanks......

[niclpnut]

Pretty amazing what those 2 little o-rings do.

Thought I had a head gasket leak for sure but 2 new o rings on those nuts and clean engine.

[rapidray]

Dave, you can check the head torque if you want but if it's got over 10 thousand miles on it already it shouldn't be an issue. Ray.

[bonanzadave]

Dave, you can check the head torque if you want but if it's got over 10 thousand miles on it already it shouldn't be an issue. Ray.

Mine had a twisted crank back in 1983 so it was opened up and the crank was replaced. Would they (he) have loosened the head bolts to do the crank ?

[rapidray]

To change the crank requires complete disassembly due to the cam chain. so, yes. Ray.

[sharpy]

Mine had a twisted crank back in 1983 so it was opened up and the crank was replaced. Would they (he) have loosened the head bolts to do the crank ?

Is that a serious or sarcastic question?

[bonanzadave]

Serious. I thought maybe it could be done from the bottom. Ive never had one apart.

[rphillips]

I had one start leaking, a few yrs back. Took a while to find where oil was coming from due to wind blowing it everywhere. Got new from Suzuki, easy fix, do both "O" rings + valve adjustment while in there.

[phydeauxmutt]

HOLY COW, rp, this thread had been dead for ELEVEN YEARS before you started it back up.

[rphillips]

Don't ask me how this happened, I promise I didn't go back 11 yrs to find it. Normally I just click on new topics & look at what's there & only respond to what comes up. Heck, I wouldn't know how to go back 11 yrs to find something. Possibly a ghost from the new layout?