Quote:
Originally Posted by Barry_R
Sounds like you REALLY overheated it - what numbers were you seeing on the gauge?
Could have annealed the head - taken all the heat treat out of it. I've heard of such a thing but never seen it. Likely to be a doorstop if you did....
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Hi Barry, I had the same thought, the gauge went around to 140 + before I was able to pull over safely.

The right side of the engine all looks fine.
That's the only reason I can imagine why the Helicoils would pull out.
The engine was running fine other than hot, I wonder if the rocker shaft pulled after I stopped?
I'm thinking that that maybe a new bare head casting may be the sensible way to go rather try a risky repair on a head that may now be soft?