• If you like antique engines, vintage tractors or old iron machinery, register and join us. When you register on Smokstak, please give complete answers and fill in all blanks. IF YOU ARE ON WIRELESS, GIVE YOUR CITY AND STATE! NO ZIPCODES! We get hundreds of applications, so there is no time to deal with missing information.

Kohler L600 water pump, copper washers?

Kenny Crenshaw

I am putting my L600 back together, and the 4 water pump bolts had copper washers on them rather than steel lock washers. At first I thought maybe the threads went into the water jacket, but no, they are all blind. The parts list does not even show the bolts, much less the washers. Is there a reason there are copper washers under the bolt heads, or should I use regular lock washers?