why would there only be 3 washers on ONE bolt then? not all 10? your theory would make sense if each bolt had 3 washers..
Actually, because valves are not flush with the head, but slightly sunk, skimming head brings valves closer to piston at TDC. This raises the compression slightly, [[not neccessarilya bad thing] but also increases the likelyhood of valve clash. I have recently reringed an overskimmed head that used to have a 2 nothch gasket. Valve clash means that I had to use a3 notch, [or actuallly a 5 notch 1.5] to gain a few thou gap . The only downside, is that I've gone from 45mpg to 55 to 65mpg 
...[/quote]
Uh, you are supposed to cut the valve seats at the same time.
Exactly how do I determine whether it is an 11mm or 12mm head?
i ask because I am about to tear it back apart.
The head bolts are either 11mm or 12mm...
The head bolts are either 11mm or 12mm...
That aint gonna work. the block is a 12mm block, judging by the 12mm bolts that came out of it.
an earlier post in this thread made reference to a 'modified 11mm head' needing those additional spacers on the bolts to keep th bolts from bottoming out.
I need to know whether there is any other way to determine what it is so I know whether those spacers are going to be required when putting it back together.
Another related question: If I were to replace the bolts with studs, am I going to need those spacers?
Ok lets see if I can be a little clearer for you.
Are you using a different head than you removed?
Yes it's different; then see if the 12mm bolts go through the holes, if they do its a 12mm head if not its a 11mm head.
No its the same head; than its a 12mm head as 12mm bolts will not fit in a 11mm head..
Hows that? Clear?
Chances of you having a modified 11mm head are SA-LIM...
Now for another point, There is no reason for there to be "extra" washers on the bolt if they are the correct head bolts.
Now for another point, There is no reason for there to be "extra" washers on the bolt if they are the correct head bolts.
Now that is an answer I can use!
In fact, if memory serves, that answers the question that i opened this thread with.
Thanks!