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CH18s push rod length?

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05-22-2019, 05:26 PM

bleoh

Member

Join Date: Apr 2015

Location: Maryland

Posts: 31

CH18s push rod length?

I recently repowered my 1872 with a CH18s from an 1863 (thanks to JeffinPA for the excellent parts and machine work!). The engine has about 700 hours on it. Seemed to run fine at first and have good power, was not using oil but it started to get a slight miss at idle and then I notice blow by. I figured it needed head gaskets and started tearing into it and noticed a slightly bent exhaust valve. Nothing seems to be out of place on the head so I ordered a replacement push rod. I ordered part number 2441105s.

The new push rod is 6 and 1/16 inch long and the original push rods are about 6 and 1/8 inch long. I am wondering if I ordered the wrong part or did Kohler decide that the push rods were to long? Should I replace all 4?

The engine spec is 62509 and the serial number starts with 243.

Thanks. Brian

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