220 in-lbs
Torque specs for my Briggs & Stratton 17.5 hp
5/16 bolts 25 ft/lb
Try going to their web site or you could order a manual from them.
Get the model # and click the link I will post.
160 inch/pounds
220 in. lbs.
Cylinder Head Torque is 190 inch pounds or 22.0nm
122inch lb
185 in/lbs. or 15.5 ft/lbs.
The torque sequence for a single cylinder Briggs and Stratton engine horizontal shaft head is increments of 2's for hp and 1's for head bolts. That makes 11 head bolts for an 18 hp.
Valves 21 hp Briggs and Stratton Intek V Twin can be adjusted by increasing the torque on screw band with a right rotation. This can eliminate some leaking problems.
Head Bolts should be torqued at 185 inch pounds
.007 on the intake and .011 on the exhaust.