Knocking sound from head!
#1
Knocking sound from head!
I am in the process of breaking in my engine after a stage 2 upgrade and after my 3rd 10min riding cycle I hear a knocking sound comming from the head. I reved it up a little and it got faster, All valve clearences were at .009 when I put it back together, could they have changed that quick, Could it be a valve knocking?
#4
Knocking sound from head!
I'm going to pull the valve cover off and check the torque on the bolts and the valve clearence to see if maybe something is off. I did change the 8 bolts that hold the cams because a couple of the old ones twisted off when torqueing at only 7 lbs ft.. Luckely they broke where I could get to them and take them out and replace them with no problems, The new bolts may need retorquieng.
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Knocking sound from head!
JERFINDS when i went to the stage III i to had that noise. turned out the cam gears were loose. i titened it with red lock-tite and over torqued the bolt but still loosened up. i ended up having it tac welded it in 3 spots to finally fix problem. p.s. this was after having the intake cam explode into a zillion parts and ruin a long distance dune trip.