Timing chain tensioner questions.

[afstud]

i see most people are just doing the tensioner and the upper chain instead of all of them... anyone else have a price that has had it done?

[van462]

T10368 has been replaced with T10351. The old tool often failed to maintain the sprocket timing : when the crank pulley center bolt is removed, the timing often jumps before you can install the T10368.

I can see where it could easily happen. The crank timing gear uses the same spline type where it mates to the crankshaft as it does to the crank pulley. If it loses orientation you can have a motor that looks to be timed correctly (using the timing chain colored plates and arrows) but will still have valve/piston contact. A guy on VW vortex had this happen.