justin_o_guy2
Serious Thumper
Offline
What happened?
Posts: 55279
East Texas, 1/2 dallas/la.
|
I dont understand how cam & or valves would create a knock. if properly adjusted, they should be fine, noise wise. If the cam is creating a knock, I would think the head must be shot from oil starvation. I'd sure hate to be spending all that $$$ in hopes of solving the problem. Seems a teardown to find the problem & fix that would be better than just randomly replacing parts that might cause the knock.If the valves & cam dont solve it, then another teardown, deeper in, to get to the piston or even lower bearings will be required. How many miles on this thing? What kind of oil has been in it? How many miles on it when the cam chain was replaced? How did the P/O take care of it? One way to get a clue as to how it was cared for is how quickly new oil gets dirty. If the PO didnt change it regularly, the innards will be nasty & new oil will get dirty quickly.
|