Hi I hope this makes sense to someone...

Ive just swapped my standard pulleys for some piper vernier cam pulleys and i planned to leave them aligned a "0" at least until it got to the tuner. It looks like the intake cam is a touch advanced by a fraction of a tooth.

If i line a straight edge up on the head (cam cover removed) it lines up with the bottom edge of that tooth on the exhaust side but just misses the botom edge on the intake and drops in to the valley behind the tooth a small way until just before the radius.

Looking at the cam lobes the inlet and exhaust cams look to mirror each other when judging it by eye. If i was a tooth out would it be visible to the naked eye when looking at the lobes? My other timing marks are as per the workshop manual and the standard pulleys came off with the arrow pointing in to each other.

Will this be safe for start up? What could i expect to see if the intake is advanced slightly?

 

Does the plate lock into the cams for timing the engine?

 

Turn the engine over by hand first but should be ok, whenever the head/and or block are skimmed alignment varies slightly due to the distance between the cam pulleys and the crank pulley becoming closer, with a fixed pitch on the belt.
I assume though that with vernier pulleys you have pocketed pistons anyway ?
tabetha

 

Pistons are 4wd spec, I'm not sure if they are pocketed though. I'm not intending to make any drastic timing changes with new pulleys. I did wonder about turning it by hand as a check.