Forgive my ignorence but what does IPL stand for? The bolts are allen wrench type and I will try the lock washer Thanks.The IPL for the mower should tell you what they used. But the SM does indicate if they are cap screws that they would be 5/16-18 type. Probably 3/4" in length or at least that is my noted size here for the Courage singles. Suggest using a lock washer and torque to 150 in/lbs.
Where did you see the cap screws in the service manual? I cannot locate them. This is a 2 cylinder 27 kohler courage pro too.The IPL for the mower should tell you what they used. But the SM does indicate if they are cap screws that they would be 5/16-18 type. Probably 3/4" in length or at least that is my noted size here for the Courage singles. Suggest using a lock washer and torque to 150 in/lbs.
Thanks! I went and bought 1 inch because that is how deep the hole is. With the gasket and muffler flange I got a good seating to them. Thanks for all your help.