Mk1 Golf GTi - 1.8 DX - Dizzy Removal / Installation

Hi all,
Need some assistance please.
I am removing my dizzy to fit a new seal.
I understand getting the timing marks on TDC before removal and rotor facing No1 spark.
The question I have is whether there are any markings from the dizzy body to the block?
My car always has run lumpy during warm up and was thinking it could be that.
Any advice is much appreciated.
Thanks.

No there's no marks to the block. As long as your rotor arm is pointing to the mark on top of the distributor (No1) you'll be fine. Position the distributor where nothing is hitting anything and looks right.

Running lumpy during warm up is much more likely to be a fuelling issue.

During warm up, the ignition timing doesn't change - but the fuelling does.

There is a little cut out on the engine block near the dissy, if you mark the dissy you should be able to get it somewhere near.

I usually made sure that the Cam and the crank were in perfect 0 time.

If you watch as you insert your Diz, it rotates as you place it in, so I usually tried to install it in the middle of the bolt hole as I inserted it and twisted it in so that I had ample movement to spin it on the clamping fingers.

The dizzy needs to be @ 12-12:45 when inserted and the rotor is i the middle of the hash mark on the side frame.  Replacing the Rotor on the bare shaft makes it easier to judge the rotation on insertion, because it is a worm type of gearing on the shaft out of the dizzy to the intermediate shaft.  Usually the timing stays spot on as you insert it, but as in all things Verify that all the timing marks are aligned and that you get the spark wires to the proper plugs… 1 under the rotor then Clock wise 3,4,then 2….  Good wrenching.  Yes getting the Dizzy back in can be a bother sometimes, as it is the rotation on insertion that you forget about….

Hi all, thanks for the tips.
I held the dizzy with rotar arm facing to the notch on the body, the cog inside the bore horizontal (parallel with block) and carefully fitted it in, yes there is some movement due to the worm gears but managed to install it with rotor facing to No1.
Started the engine and set the timing and it appears to run better than before.
Cheers

Hi all, thanks for the tips.
I held the dizzy with rotor arm facing to the notch on the body, the cog inside the bore horizontal (parallel with block) and carefully fitted it in, yes there is some movement due to the worm gears but managed to install it with rotor facing to No1.
Started the engine and set the timing and it appears to run better than before.
Cheers