|St Lawrence head bolt torque
Post Number: 1201
|Posted on Sunday, September 11, 2022 - 06:46 pm: ||
I was out several days ago and the engine seemed to be running a bit hot. After about 5-10 minutes there was a dark brown ooze coming out around one of the head bolts on the rear cylinder - not a good sign.
I came back to my dock and let it all cool down. I carefully removed the head and gasket but there was no sign of a leak.
I then checked the torque on the bolts on the front cylinder - it was about 20 ft-lb on each bolt - really not good even for a low compression engine like the ST Lawrence.
Re-torqued both cylinder head bolts to about 50 ft-lb.
I also re-packed the gland seal around the water pump - there was almost nothing left of the previous packing - the pump was barely pumping - that's why it was running hot.
Took it out today and it ran as right as rain - a nice cruise on an early autumn afternoon.
Lessons have been learned . . .. Miro
Post Number: 226
|Posted on Thursday, September 15, 2022 - 09:20 pm: ||
As memory serves I torqued the nuts on the head of my 3 hp St.Lawrence to 50 ft/lbs as well.
Glad all is well now.