Dizzy prob solved, diff prob found, wanna check my solution

[mark-mk3gti]

hi all, i had a post a while back about hall sensor problems, so got a dizzy in post today, part worn but looks nerly new, still has stickers on etc, so thought id fit it cos i know timing is apparently correct, from garage, and i marked the base ready for next one but forgot to mark the blxxdy arm, so i dont know where it was, what a dummy, i'm not very mechaniclly minded but thought it would a reasonable change and then i could take it somewhere to be checked again, if i did get it slightly out, so is there anyone who can help me? looks like ill have to completely redo the timing, now, is anyone out there remotely close to me and prepared to help me sort my mess out, need the car for tues as have to get to work in it then as company one goes on mon,   depressed...  by the way im at sk8 postcode if it helps

thanks

mark

[AudiA8Quattro]

Do you know how to set the crank and cam timing?
What year is the car and engine code?

[mark-mk3gti]

Hi thanks for ur reply, I don't know how to do it, but just being and bought the haynes manual, to find out how to find tdc, and it's a 96 agg engine, thanks, I only wanted to do all this cos I have the 5k rpm limit, in my vagcom it gives 1 just out Reading 57-60 mine is 61, and the other Reading should be between 5 - 8 n mine says 61again, so think it was axelgrinder said sensor cud be cream crackered, I know just swapping like I was gonna wasnt perfect but at worst would of got me same problem, but least I could drive it to work, it's all a bit stressfull now!

[gtigolfthree]

Only revving to 5k means it's in safe mode, take the rocker cover off and remove number 1 plug, stick an impliment in the plug hole and turn engine till piston is at tdc checking that both lobes on the cam are pointing up (off cam) then position rotor arm till its pointing at no 1 lead. I think actually there is a mark on the dizzy. That should get it running, then check with timing light. If you dissconnect the battery before you start work then that should reset the ecu.

[AudiA8Quattro]

Remove the upper timing cover on the left hand side of the engine. Engage a spanner or socket on the crankshaft pulley, turn until the notch on the cam sprocket lines up with the OT arrow.
Like this:-


If you look at the crankshaft pulley, it should now look like this:-


Now remove the distributor cap, loosen the clamp bolt, but do not remove the distributor, turn it until the rotor arm lines up with the notch on the distributor body, roughly at no.1 spark plug ht lead.
It should look like this:-

[mark-mk3gti]

hi, thanks for the info, im just not sure about doing it, cos i know its imperitive to get it right,  i originally had it checked but they did it with a light, so they havent checked all notches line up with each other, but it ran ok, just tstopped at 5k, ive tried leaving it disconnected for 15 mins or so to reset ecu but the readings are still wrong according to vagcom, if i remove the code it runs ok, but stop and turn off and turn on itll be back, and so is the limiter, i reckon the guy who had it before me hasnt got the timing quite right, but i just want to get it running as it was for now at least,
when u say put somet into sparkplug hole 1, im guessing itll move up and down, so when its at its highest that should be tdc,  dont suppose your local to me are you? and fancy earning a few quid helping me?

cheers for the info also

[gtigolfthree]

Assuming that the cam timing is ok just line the cam pulley to the ot mark as in the pic and check the rotor is lining up with its mark.

[mark-mk3gti]

hi mate, well ive being told its ok, cos it does run fine, it just looked like that sensor isnt working, ihve had a look at wires and they dont seem broken, just weird that they always say the same thing, n never change when running,  will get it lined up as above tommorrow, and will post how it went, if it still doesnt rev properly what else cud it be?  i guess then i need to have the timing checked properly ie not with a light,  if thats ok where next?

cheers fellers   feel a bit happier now, stress from work n car certainly getting high at the mo

[gtigolfthree]

Did you loosen the cam belt to position the rotor arm?

[mark-mk3gti]

no, didnt mess with any of that side,just unbolted dizzy and wiggled out, wasnt too bad really, cos it looked like original, im hoiping that means if i line back up as u say then it should be as it was before i messed about,  29 and dont no much bout mechanics only how to drive them, so thanks for ur help!