1990 200TQA no start and timing marks..

[Huw Powell]

nervous about TDC?

pull # spark plug, and rest a skinny screwdriver or pencil on the top of
the piston.  rotate engine slowly (coil unplugged, key out...) until it
is at its highest.

The front two cam lobes, sometimes visible thru the oil cap hole, should
be both pointing up, at equal angles to the head.  pulling the cam cover
would let you put a straightedge across them and measure to the head if
you want.

Now look at your timing reference marks (cam gear, flywheel) and see how
they compute.

Nicholas Lawrence wrote:
> 
>     I am very sure I only have one timing line, no  marked "0", on my
> flywheel and it doesn't match timing mark on cam belt cover. However the cam
> dot is in time with the cam belt cover mark.  If it was timed with that mark
> and not the mark on the flywheel how good or bad would the car run?
>      I've owned the car for a couple k miles and thought the performance was
> OK, except for the hard start and now no start.
>     Lately there seem to be many opinions concerning which timing marks are
> what.
>      I'm leary about retiming the cam due to the non-freelwheeling.
>     Again TIA for suggestions.
>     Nick

-- 
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/