crankshaft position timing???? on z31

[stepette]

ok guys
i own a 1986 300zx turbo vg30et engine
i want to replace timing belt...
but i noticed the crankshaft position is 20 degres when the both camshaft sprockets dot are aligned with the dot on the back plate of the timing cover ...
the crankshaft should be at zero position ???? why 20 degrees ??

someone can help me...

thanks!

[evildky]

Um who put the last belt on and when? It's a bit of a tricky process, you set the timing at tdc using the indicators on the damper and the timing cover, then you remove both. But before you remove both you pull the upper timing cover and check the cam dots against the backer. These can be out a bit due to play in the back cover. Once the crank damper and timing covers are removed there is a notch in the oil pump housing that lines up with a dot on the crank, except you can't really see either with the engine in the car.

[stepette]

ok thanks for your answer...but thats not answered my question...

i asked if it should be 0 degre or 20 degre on the crankshaft arrow pointed when all the camshaft dot are aligned and with the dot on crankshaft aligned too

[evildky]

It's an answer that isn't an answer. The crankshaft should be at zero and the cam pulleys should line up with the dots on the backing plate, unfortunately there is a certain amount of slop in the belt, tensioner backing plates and timing cover.

[stepette]

ok thanks! thats what i tought .