NEED HELP ASAP. 1990 Coupe Quattro 7A

[Grillage]

Broken flywheel pin?

Can you check codes?

http://20v.org/fault.htm

[Kevin_kiely]

Broken flywheel pin?

Can you check codes?
http://20v.org/fault.htm

i do not have a test light but i will see if i can find one, how do i see if its a broken flywheel pin?

[Kevin_kiely]

Broken crank pulley keyway?

the crank pulley on the front of the motor?

[newsh]

Follow these instructions I posted earlier to see if the timing is correct.

I've added some detail, if you still don't understand ask questions.


Check the timing, 3B

Set the Flywheel on zero mark (seen through small window in bell housing)

Dizzy rotor mark should be aligned with mark on casing. (You may have to turn the engine another whole revolution as the dizzy moves at half the speed of the crank)



If the dizzy still goes round but these marks don't line up then it's time to take off the cam cover and check the alignment of the cams.

There's pics here

http://www.sjmautotechnik.com/trouble_shooting/eng.html

[Bowie69]

the crank pulley on the front of the motor?

The toothed pulley behind the large pulley has a key cast into it, these can shear if timing belts are carried out with a mahoosive rattle gun rather than the proper locking tool.

It only needs to slip a few degrees to stop it from running, I have had this, twice, when someone in the past did the belt....