Kenmol,
Before you button up the cam chest, grab a good dial indicator and remove the outer chain drive and check the runout of your crankshaft. Check on the diameter that the drive gear seats on. If the Total Indicated Runout (TIR) is greater than .003 inches there is no need in buying gears.
If the runout is over .003 inches you will not be able to get the proper backlash between the gears. If they are too tight they will chew themselves up. If they are too loose the gears will whine and the backlash in the gears will make a noise much like noisy lifters.
By the way, the factory spec for crankshaft runout on twin cam engines is .012 inches, so many will not have the required .003 for gear drives.
On my '05 I kept seeing bits of orange plastic in my oil filters. (I always open the oil filters to see what's circulating in the oil system) Somehow, the bits were getting through the scavenge pump, into the oil tank, picked up by the supply pump and getting to the oil filter. I had a few pieces in the oil tank too. I pulled the cover and there were some pretty good size chunks missing from the face of the cam tensioners. They actually had only slight wear as far as the faces being groved by the chain, but the chunks worried me. My crank run out was about .005 so I just replaced the tensioners and the oil pump and put it back together.
Later,
