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Well, this is a new one...

TobyB

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So this weekend, all the water went out the tailpipe.  

It took the driver 3 laps to notice this

(he's been sacked) 

 

but the only thing I found wrong was that the exhaust valves were making

their own reliefs in the pistons (!!!)

The engine builder's been sacked, too.

 

I didn't have a very good straight edge tonight

(I sacked myself)

but the head is surprisingly un- warped.  Based on a bit of aluminum angle I had lying around.

 

More as it gets taken apart.

 

t

             

crispy gasket.jpg

leakage.jpg

exhaust valve relief.jpg



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Did you check the timing chain before you we sacked?

These things are never an interference motor unless you shave the head and the block :) A lot can be pulled from the block. And I think it has been machined a few times in the past as your piston is floating above the edge

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