This was just another of the jobs I had to do to mine....
It's relatively easy, but requires a fair amount of disassembly to get the headlamp out... the grille and indicator pod both have to come out..
Once you're this far it's mostly plain sailing - what I found hardest was being bold enough to crack open the motor housing - you'll break a few if not all of the plastic tangs getting the thing apart but don;t worry too much about it cos a couple of decent cable ties will do a good job of holding it all together again.
My problem seemed to be lubricant - the motor had gobs of grease over the reciprocating mechanism that drives the arm, but it had mostly been displaced over the years. You'll probably find that the drive-link from the reciprocating link has popped out... fiddly to re-align but still relatively easy to fix. So I ended up giving everything a very generous squirt of WD40 just to wash a little more lube around the motor core then re-greased the gears and re-assembled the unit. I'd broken all but 3 of the tangs but as I mentioned, but carefully placed cable ties have held it all nicely tight for me.
You have to be careful to run the motor through a few cycles to allow it to centre under no-load conditions, then offer it upto the mounting plate to make sure you know where the arm has to go. I got it wrong the first time and the motor stalled trying to push the arm past the wiper stop. Take a moment to look at it though and it'll all become clear.
It's not a tough job (I managed it after all!) and it might be a simpler fix than you expect.
Best of LucK!!
Greg
duuuh... I forgot to mention...
While you've got the lamp out, take a minute to unclip the lens and give it a good clean on the inside (The lens that is, NOT the reflector!!), as well as making sure the drive/adjustment mechanisms are all clean and functioning. This is a well spent extra five minutes!!
