Board index Flathead Power-Technical Questions, Answers, and Suggestions 45 Flatties K cylinders

K cylinders

Post Thu Jan 13, 2000 1:51 am

Posts: 8
I've got some K cylinders that are a little beat up. One has a couple of chips in that collar that extends below the base of the cylinder and slips inside the cases. What is the function of this collar? To get right down to it, would the chips have to be repaired in order to put these jugs back in service? Also, another one has some chips in the fins. I remember from the old board discussions on the repairability of chipped fins, but I seem to remember the important point of "save the broken parts". Well, I don't have the missing parts, but how difficult would it be to fabricate substitutes? And finally, each cylinder has a different casting number. Can anyone tell me if they denote anything, like year, or special model, or anything? The numbers are: 16581-52; 16581-54; 16581-56R. Any thoughts appreciated.

Post Thu Jan 13, 2000 9:06 pm

Posts: 607
Location: Menomonie, Wisconsin, USA
-52 cylinders are 45" K, -54 = 55" K, and 56R if I remember right = KR or racing K.
The skirt of the cylinder is just actually still part of the bore and guides the piston. All chips on the skirt should be deburred to eliminate potential crack starting places.

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