Quote:
Originally Posted by Mart
I just did a test and I can just about get a head on my small milling machine. no overlap at either end or side but I can just about cover the surface.
I tried with parallels under the ends and middle (Under the head nut bosses) and bolts down through the end spark plug holes.
I was hardly touching the ends but taking quite a bit off the middle.
So a couple of questions.
Are the head nut bosses a reliable surface to mount the head on?
Is it better to mount the head face down and level the nut bosses first? Too late on my test head.
Is it better to use just 3 mounting points so the head isn't pulled into a bind?
Any hints and tips gratefully received.
Mart.
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Mart, When I used to do these, I'd mount the head on a number of adjustable supports, usually six. The difficult (time consuming) issue was leveling the head as best I could.
I clamped it in many places (usually six) and would mill as much as possible around the clamps. Remove one clamp at a time - mill. Replace that clamp and move to the next.
The bosses are close but in my opinion, not nearly close enough to solely utilize.