Why not view our other blog at CKD Boats cc

Looking for info on boats? all sorts of stuff has been posted now on the first blog. Why not try Roys other blog, he has over 3300 entries in there. That blog is full of information and pictures,its really about one mans life. Designed for those who enjoy boats, cars, traveling , plus in some cases, finding out how to fix things yourself. We also started a third blog which is mainly about the two shops, my daughters started. plus odd ends about me and some I have known.



http://decorinspirations.blogspot.com/















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Saturday 8 December 2012

Hillman Imp low compression piston, part two

I have just the one and odd piston, it must have come to me a part of a job lot of parts?
there was no conrod or gudgeon pin but the top two rings were still there, quite worn, so the engine has done some miles.


The piston on the left is the low compression one. Both the skirts are shorter and the top deck is thinner.





The shorter skirt is also shaped and is hollow, check the thinner deck hight on the left piston.



The hight is different due to the shorter skirt, note the gap under the bottom of the skirt on the left piston.



The piston on the left is the low compression one, you can see the valve cut outs are lower and if you look closely you can see a set of half moon marks above the cut outs when the engine was run with the pistons fitted the wrong way around!

Click on the pictures for a closer look.

Roy

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