Thursday, June 23, 2011

CM91: Off With Your Head!

Cylinder head came off today.  As I'd disassembled all the way down to the camshaft several times already, the work went pretty quickly.

Everything was pretty straightforward, though Clymer's described there being a couple screws actually holding the head onto the cylinder, which I spent a couple minutes trying to find.  The picture in Clymer's was obviously a different model of engine, but I figured they'd just be somewhere else.  But after finding absolutely nothing, I decided to just pry the head off and viola - it popped right out.

My big mistake of the day was forgetting to charge the camera battery!  Had to switch to the iPhone camera about halfway through.


This little round spring thingy was hiding behind baseplate.  Clymer's didn't mention it so I wasn't watching for it.  Almost lost it...  It actually fits into the oil seal that's fixed into the center of the baseplate.


 
This gasket essentially disintegrated when I took it off.



A peek at the rocker arms.



A look at the camshaft.




The head as it begins to come off the dowels.



The top of the piston.


And finally, a few shots of the head itself.




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