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300x Valvetrain question

969 Views 6 Replies 5 Participants Last post by  SlammedRanger
We have a 2009 300x race engine with a high lift and long duration cam and aftermarket springs in it. It has worn away one lobe on the exhaust side and worn a deep section away on the rocker. I don't think its short of oil as the inlet lobe / rocker arm is ok.
Any reason for this.
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Mine did the exact same thing when the oil pump stopped pumping. The oil reservoire under the cam keeps one side lubed and the exhaust side dosnt get it as well. Your pump is bad. Or about to stop pumping. Change it and save yourself the headaches i had with mine........and by headaches i mean rod bearings going bad and the motor blowing up.
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