Well after 18 months of blood sweat and tears and lots of hard work and research and fantastic help from friends and this forum this weekend was the Maiden voyage of my basket Case wm20. Just needs the vokes and the racks etc to be fitted.
https://ibb.co/dmnC20W
https://ibb.co/m8w5kpy
To
https://ibb.co/YRHKzfj
So anyway I took it in my van for a run on my m8s farm . Everything worked amazing when I say that everything I did worked so amazing engine is very sweet .
In my haste and not previously touched gearboxes before as all we used to do was send them away for the specialist to fix. I past the gearbox to a person that was meant to be quite competent on fixing gearboxes on classic machines. Suffice to say the only thing I didn't do was the gearbox and the only thing that didn't work was the gearbox so pretty upsetting really I should have checked it properly before I carried on rebuild .
Anyway and he has refunded me for the work but not the parts. The issues are it struggled to select any Gear ear and if it did select a gear it was pretty chunky and it was usually second or third sometimes it would be first so it was literally all over the place it does feel as though on the dear disc it does actually change in the notches but it doesn't select properly. Sometimes it would come to a grinding halt so there's definitely something up and I don't know where to start.
I have a manual and it does cover a little bit about the gearbox but it doesn't seem to have any technical data Shims or how to rebuild correctly in a step-by-step procedure . And from what I've read the gearbox needs to be removed. last thing I want to do is walk into it unsure of how to do it and would like a bit of help if anyone has the correct data or know someone that can do it for me this would be very helpful any advice will be received greatfully.
email (option): chriscool@sky.com
They're not the simplest boxes to set up. There is some gearbox info in the technical pages. I've rebuilt four or five in recent years after firstly watching Ian and then reading up on them. If you get stuck and don't mind taking it out the frame and making a trip to Bournemouth, I'm willing to go through it with you. Ron
email (option): ronpier@talk21.com
Thanks Ron
Well I will get it out and have a quick look for anything obvious, if not will have a trip down to get a tutorial I know it's a long way from Yorkshire but it be worth it.
email (option): chriscool@sky.com
UH OH! I forgot you are in Yorkshire. Ron
email (option): ronpier@talk21.com
Hi Woody
I've sent you an e-mail with some info.
Pete
email (option): petercomley@web.de
Woody,
Where are you in Yorkshire.
Tim W
Thanks Pete will have a look at it.
Tim I'm just in York .
email (option): chriscool@sky.com
Woody,
Sent you a PM, check your mail.
Tim W
I have opened up the box and the main problem was a bush that was fitted hasn't had a outer lip on it so the lay shaft gear was rubbing on the case and hitting the main shaft the fling washer that also fitted in the wrong place against the outer case and spinning it round when one of the gears on the lay shaft has been hitting it. The lay shaft had over 7mm movement, no wonder it was not selecting 1st and only 2nd now and again. Then just caused a cat scared of of poorly missing gears in the gearbox along with very poor craftsman ship from someone who's meant to be an engineer .
I've managed to come across a few parts what I need that I'm missing luckily I had another box that was in pieces and I've rummage through that and found the odd part I need but I'm missing these if anyone has any please let me know.
Spring clip to hold gear indecator on
24-4241 lay shaft bush
24-4235 oil fling washer
24-4236 oil retaining washer
24-4237 mainstay distancing washer
email (option): chriscool@sky.com
Update
Got all the bits now and changed several parts for new ones ,as the guy that did it mixed up the fixed lay shaft cog and main shaft cog so it's grinded down with not fitting correct the other cogs he put in thinking it was correct , he replaced a brass bush on the lay shaft but it had no spacer so was wrong, so the lay shaft had 10mm slack so that was moving around and has worn a hole in the case and mashed up a spacer on the main shaft Good job I had a spare case. The dogs and forks had over 20 thou clearance so not selecting the gears , selector pins both worn and the guides had worn faces so wouldn't slide . New parts 300 notes but it's all in correct factory tolerances now. So for the last 5 days of messing around and swearing a lot it now works lovely, so just need to fix it . Thanks for the help and the pdf I would of been lost without it. Let's hope I don't meet the guy that rebuilt anytime soon .
email (option): chriscool@sky.com
Hi Woody,
good to hear that you got it sorted.
I have done a few of these boxes now but when I started I too would have been lost without the information on this site and the kind help of the contributors.
thanks again to everyone
Cheers
Pete
email (option): petercomley@web.de