3rd stage: changing the starter motor bush.
There's already some info in the wiki about this . . .
https://club8090.co.uk/wiki/Al ... rter_motor" onclick="window.open(this.href);return false;
https://club8090.co.uk/wiki/Pe ... sh_removal" onclick="window.open(this.href);return false;
. . . so I'm just gonna add some photos that I took and a couple of brief comments.
This photo shows the hole in the bellhousing (I think that's what it's called?) after the starter motor has been removed. The teeth on the flywheel are visible, as is the oilite bush (small brass-coloured cylinder in the middle of the hole, just beyond the flywheel). This
isn't what the bush looked like when I first removed the starter motor, this photo was taking
after I'd put the new bush in:
Having read the info in the wiki, I knew i was gonna use a 12mm tap to remove the old bush. With the drive shaft still in place, access to the bush was a bit tricky, but I managed to get the tap biting inside the old bush just by turning the tap with my fingers. When I couldn't turn it anymore it took me a little while to work out that the only way to get enough leverage to continue turning it was to use a pair of mole grips, or large pliers,
in-line with the tap, like this (photo taken after the bush was out, obviously!

):
Once you've got a few good turns of the tap inside the bush, it's a case of "wiggle and pull" the end of the tap, and hopefully the bush comes out. Once it's out, clean-up inside the hole to remove any small pieces of the bush that might still be in there. Here's a close-up of the old bush on the tap:
The importance of soaking the new oilite bush overnight in engine oil is covered in the wiki. I had a right bliddy job getting the new bush into the hole!

After coming back and checking on 80-90 again, I read somewhere that the ideal tool for the job is the 120mm long bolt that holds the starter motor in place. Wind the nut down the thread a few turns and then put the bush on the end of the bolt like this and then gently hit the head of the bolt with a hammer, to get the bush started in the hole:
Once the end of the bush is firmly located into the hole use a narrow piece of wood (e.g. large dowel, or cut a short piece off a mop handle / yard brush handle) and a hammer to tap the bush the rest of the way into the hole.
Be careful not to get the piece of wood on the
flywheel teeth and be hammering on those instead!
With the new bush in place the starter motor can then be put back on, connect the wires onto the end of it again and connect the negative lead back onto the battery and turn the key!
Unfortunately when I turned the key nowt happened so I bounced my head off the steering wheel a few times and shared a few choice words with the neighbourhood!
Have been tinkering with connections since then but still no joy, so today I'm having a trip over to gsf to buy a shiny new starter motor!
Tony