Your vid was awesome.. and did check it again, but that is a L20 cam? This is an 81 (Z22S 2187cc) that I believe to be stock because it was a old navy dude single owner (my ladys rig, I am a noob to the Datsun). The head has eight spark plugs which is the L-head? It wasnt quite timed right from the start because it would 'diesel' sometimes.. and in the same turn had great power 3-4k (advanced?). Where should the cam lobes line up at TDC? Many thanks.
Ok.. front cover is off. crankshaft it pointing where it should (key@12:00 and dimple@3:00).. but on the camshaft, front lobe is @11:00, and 2nd lobe@1:00? And additionally, the camshaft sprocket guide pin is @6:00 (180deg out). She was running well before the tear down (minus the tensioner failure).. any ideas on the easy resolution here? Am I an idiot and just 180deg out?
Oddly enough, I had a mistype and actually meant that it IS an interference motor (ie:self destructs if the timing chain/belt breaks).. but I have heard from multiple people that the Z22 is a NON-interference motor, so hence my confusion. I am going to start tearing her down anyways, but appreciate all of the input..
Nah, still running fine..just has developed a racket. My lady (its her truck) took it to a mechanic that has done work for her in the past and he pulled out a piece of the chain guide (drivers side). The tensioner is all the way in and there is still some slop in the chain, although intact.