Step 18: Install cylinder head and spark plug
First is the head gasket. If you bought an aftermarket rebuild kit, this is one of the parts that you're going to want to buy a genuine Kohler part. Matt details this on Page 6 of his
Head Gasket Replacement How-To. Read about the fire ring. And of course, make sure you surfaced the head following the procedure Matt outlined in that same document. I did a write-up on it
earlier in this thread as well, before I knew I was going to do a whole rebuild.
I used all new Grade 8 bolts. Follow the service manual for the tightening sequence. Per the manual, my bolts were torqued to 28 ft lbs, and I did it in three rounds. 10 lbs first time through the sequence, 20 the second, then 28 lbs.
Then you can install your spark plug and torque it to spec.