I took a stab at resetting the cam chain tension, my question is this.
My book says to set the #1 to 15 deg past TDC, doing so should make slack on the rocker arm. so I set it to 15 deg PTDC and got only the slightest bit of slack on the rocker. How much movement should I get from that rocker?
next question is when I slacked off the lock nut and turned the adjuster screw in but it hardly moved in I didn't force any thing however there was a fair amount of resistance on the adjuster. What can You tell me about this.
G'Day Mate, ok, when you turn your engine over and you get #1 at 15 deg past TDC and you can't detect hardly any movement in the rocker, turn the crank another 360 deg and try again, you'll probably find it makes a difference. From memory, the #1 inlet (that's the outside cylinder on the gear pedal side) should have .002 (2 thousandths of an inch) clearance, and you can "feel" the movement.
When you're sure you've got it, undo the lock nut on the cam chain tensioner, then undo the bolt a couple of turns. The adjuster shaft is wedge shaped, so you have to undo the bolt so the shaft can slide forward under spring pressure. Sometimes they get stuck, so give the adjuster body a "rap" with small hammer, screwdriver handle etc.
If there was any slack in the chain, you may well hear it go "clunk" and you may even see some movement at the rocker as the retensioned chain slightly pulls the cam backwards, but don't be worried if you don't. Wind the bolt back in until it seats, then tighten up the locknut, and you're done. Cheers, Terry.
