Jon, the numbers I got were out of the Cub Service Manual in the Tech section for the 1x6/7 series (Manual GSS-1404, page 1-4 under the piston to cyl bore clearnace spec). Thought I'd check another source and it looks like the numbers in the Kohler service manual are basically the same but are rounded up to the nearest thousandth. Cub says .0065 - .0095, Kohler says .007 - .010
If being picky, I suppose Cub, by their numbers, allows a little bit tighter fit (but who's counting?). I think Kohlers numbers probably trump other values and should work. Sometimes too much information just confuses the issue!
You say you "like to see numbers in the middle of the range". Do you tell your shop to cut it that way (in the middle)? How do you usually get them if you don't say? Just trying to get an idea of what the norm is that machine shops use for a target. Would you feel comfortable if it came back on the tight side but still in spec? Or feel better if on the loose side but still in spec? Or does it really matter as long as it's in spec? Maybe over analyzing this, that's why there's a spread!
|