Author Topic: AGG timing question Distributor  (Read 11269 times)

Offline bigdirtyturbo

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AGG timing question Distributor
« on: 12 July 2013, 20:58 »
Hi all, trying to time up my engine as ive been getting the hall sensor trouble code off of vagcom.

Firstly ive tried adjusting the distributor using vagcom but cant get the readings anywhere near what they should be.

So now im looking at the engine timing. The cam and crank timing points match up no worries but im stuck with what to do with the dizzy.

cap off the mark didnt match the arm, so i loosened it off and lined it up.

ive not put vagcom back on yet but will first thing..

my question is..
is there a specific way of timing the dizzy, or am i just meant to spin it to match the rotor arm wherever it is?
what happens if the rotor arm is out i.e if the shaft was re inserted wrong previously?
how is the rotor timed up??

cheers in advance
Euro Mk3 Anni 8v

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Re: AGG timing question Distributor
« Reply #1 on: 12 July 2013, 21:29 »

Inter shaft is loose when the belt is off and moves really easy when fitting the new belt, where cam and crank are quite solid and don't move as easily.
So long as the inter shaft that drives the dizzy is only a tooth or two out you can line up the dizzy to the mark and you will be fine, say up to about 20'

Offline bigdirtyturbo

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Re: AGG timing question Distributor
« Reply #2 on: 12 July 2013, 21:42 »
ok, so I need to check the inter shaft? would a quick way be to check the position of the rotor when cam is at tdc? if so where should the rotor be pointing when engine is at tdc?
Cheers
Euro Mk3 Anni 8v

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Re: AGG timing question Distributor
« Reply #3 on: 12 July 2013, 22:33 »
ok, so I need to check the inter shaft? would a quick way be to check the position of the rotor when cam is at tdc? if so where should the rotor be pointing when engine is at tdc?
Cheers
Rotor position is relative to the shaft position
Set cam and crank to tdc and see where rotor points, should be lining up with mark on dizzy body and firing on 1 in the dizzy cap.
So long as you are only a little out you should be fine turning the dizzy.

My dizzy is rusted in and cant be turned and is out to the intershaft by about two teeth, I just turn the inter until the rotor lines up with the dizzy body mark, bit of tippex will help once you have position if it moves again.
Trick is to get the belt back on without it moving again :grin:
So long as you get it pretty close the ecu can control the spark, if you are too far out it will not rev past 5k and go into safe mode showing a hall sensor fault.
If its timed up properly and still faults then you may need a new hall sensor, this is a dizzy off job. :smiley:


Offline bigdirtyturbo

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Re: AGG timing question Distributor
« Reply #4 on: 12 July 2013, 23:19 »
ok, that's what I needed to know. but I still don't get it. I understand the rotor is relevant to the shaft. but when I hear that it should be aligned to the dizzy body marking I don't see how. as the dizzy is movable so that could be in any old position. guess what I'm asking now is... Where should the dizzy body itself be aligned to if I'm meant to align the rotor to it? or does it not matter as long as tdc has the rotor pointing to 1/dizzy marking.
Thanks for all the info guys.
Euro Mk3 Anni 8v

Offline itavaltalainen

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Re: AGG timing question Distributor
« Reply #5 on: 13 July 2013, 10:07 »
which values do you get for the ignition timing on vcds (vagcom)?
value 1 needs to be 57 to 60, value 2 needs to read 5 to 8.
2019 Seat Leon ST FR DSG 135kW - eclipse orange - 23k miles

Offline bigdirtyturbo

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Re: AGG timing question Distributor
« Reply #6 on: 13 July 2013, 10:36 »
timed the car up so all timing marks are in place..
Put on vagcom and adjusted the dizzy as best i could.
the readings are jumping around they flick between 2 numbers first one is reading 56/36 and second is reading 8/28.
also this is with the hall sensor pointing at the 2 oclock position which i feel is odd..
i tried unpluging the hall sensor with the engine running and nothing happend the engine note didnt change and it ran just the same.
guessing i need a hall sensor???
anybody know the part numbers? mines a 97 agg
Euro Mk3 Anni 8v

Offline itavaltalainen

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Re: AGG timing question Distributor
« Reply #7 on: 13 July 2013, 10:57 »
what dizzy do you have? black or brown?
2019 Seat Leon ST FR DSG 135kW - eclipse orange - 23k miles

Offline bigdirtyturbo

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Re: AGG timing question Distributor
« Reply #8 on: 13 July 2013, 13:08 »
red/brown cap on the dizzy.
Cheers
Euro Mk3 Anni 8v

Offline Gti_Jamo

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Re: AGG timing question Distributor
« Reply #9 on: 13 July 2013, 13:25 »
Regardless of where your dizzy is sitting, time up the engine to tdc.  Then line up the mark in the distributor to the rotor and that should be it done. Assuming the cam gear is in correct position. If it not you will need to alter the dizzy position so it is within the parameters given by vagcom. But if timing belt is fitted correctly you should,t even need vagcom. Mine didn't anyway.


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