timing

[enerdome]

does anyone know where the timing marks are on the cam shaft, I can`t get the timing set I put a timing chain on and can`t find the marks. az600 coupe

[GERRY DEMARS]

There is a line across the cam sprocket that must be parallel to the top of
the head. It will never be exactly parallel, it will always be off a few
degrees. I never knew whether to tilt it forward or back, it does not seem
to make a difference. Gerry Demars

[forumadmin]

The timing mark is nothing more than a flat spot on the side of the gear.
Install the camshaft and cam chain.
Turn the crankshaft in the normal direction of rotation and aline the "T"
mark on the crankshaft pulley to the index mark, and then aline the camshaft
so that the flat mark on the sprocket is at the top parrallel to the top
surface of the head or camshaft housing. in this position pull the slack out
of the cam chain and mount on the sprocket.
then install the rocker arms they are marked R and L installing the right
side first assemble with punch mark on the rocker arm shaft up this will
allow forr max clearence and makes assembly easier.
If you need more help let me know
Dan Kent
Michigan

[rustyandtuffy]

When I timed my '72 600 sedan, I followed the shop manual and lined up the
notch on the crank pulley with the T mark on the cover and made sure the mark on
the camshaft sprocket was parrallel to the camshaft housing. I pumped up the
tensioner with oil and installed it. The engine started and runs fine, but
when I hook up a strobe timing light my timing is way off. I would guess that
it is about 30 degrees btdc at idle and the vacuum advance cannot be adjusted
enough to line up the timing marks. The timing chain appears to be in great
shape does not see to be stretched.
Can anyone give me a hint about what is going on? I don't want to drive it
until everything is correct according to the book.

[dealadayray]

Hi LandMwing;
There are a couple of things you might look at;
Pull one of the spark plugs when you have it at TDC and see if the
piston is all the way up.
Pull the breaker plate and advancer assembly and check if the advancer
assembly notch is on the pin or was it off?
Put your marks at TDC and while you are watching the cam move the timing
mark on the pulley from the T back to the F, when the cam starts to move
look where the mark is. If it is on the F or past it, then you need an new
timing chain.
Bill