C-120 refurb.

[Stormin 4,458]

  As one or two know I acquired a C-120 off Chris (The Showman) at Newby Hall.

 

  One of the things it required was a new nearside driveshaft seal. On removing the wheel and hub, I could detect some play in the bearing. After some thought I decided to replace the bearings as well. Left alone new seals would only wear quicker. The transmission was left to drain. Actually left for a couple of weeks.

  Today I thought I'd remove the trans, but I got a little carried away.

 

 

 

Spot the missing bit.

 

 

 

 

 

 

  That's it so far. A rolling chassis and a pile of bits. The tin ware is in surprisingly good condition. Thankfully! Apart from the missing corner bit, no holes or gaps where there shouldn't be any.

 

 

[Ian 2,417]

It's very easy to get carried away when working on WH's

That missing corner bit is a standard feature on C series, I've seen it loads of times.

 

So what's your plans now you have pulled her apart Norm? Resto, worker or something different?

[Stormin 4,458]

I think it could evolve into a bit of custom. Nothing too exotic or along your lines. Time will tell. Look how long it took me to get the C-81 back together.

[pmackellow 2,738]

Do it at your speed Norm, it isn't a race !! 

[meadowfield 1,900]

Good to see progress Norm!

[the showman 4,074]

That's a good start Norm, but the part you started to do is the only part you havnt taken off yet

[Ian 2,417]

I think it could evolve into a bit of custom. Nothing too exotic or along your lines. Time will tell. Look how long it took me to get the C-81 back together.

 

I like the word "evolve".. Just make a start on it and see where the path leads you

 

[Stormin 4,458]

That's a good start Norm, but the part you started to do is the only part you havnt taken off yet

 

Oh yes it is Chris. The old seal is on the bench. I put the hub and wheel back on. 

[Stormin 4,458]

 Progress so far today.

 

 Chassis and trans split.

 

 

A pile of bits.

 

 

Just hope I can remember where everything goes. I have taken some photo's but probally not enough.

 

Next, clean up the box and split. Typically only one drive shaft bearing needs replacing. But both will be done and anything else needed.

 

Anything to watch out for as I split the box? Any particular way to do it without bits falling everywhere?

[Stormin 4,458]

Trans' box now in bits. Found lots of needle rollers in the bottom, cage from main ball bearing and the end of the dipstick.

 

 

Main bearing, now extracted with assistance from a large tyre lever, hammer and thick cloth.

 

 

The outer race of the needle roller bearing is proving more obstinate. Think I'll have to take it up to the farm and apply some heat to the case.

 

I also found the drive pulley welded to its shaft.

 

 

I may grind it off, or maybe just leave it alone.

 

 

 

 

 

 

[pmackellow 2,738]

Perhaps its as well you had the trans to bits if there were bits in the bottom...

 

Top job Norm, following this post with interest

[Dibnah 19]

Hi Norm, run a bead of weld around the groove in the outer race- this will shrink it and will tap out.

[Stormin 4,458]

Now why didn't I think of that.   I've done that before.

[Stormin 4,458]

  I tried the weld bead. Didn't work. The trouble was the shell was so thin walled and I couldn't get behind it to knock it out. Got the farm gas bottles and got things nice and hot. The shell red hot. That softened the shell a bit and I was able to carefully squash it in with a chisel.

 

 Now all I need are bearings and seals. Now have I got this right?

 

 Needle roller bearing - 1-1/8 x 1-3/8 x 1.

 

 Axle seal SKF 11050.

 

 Brake shaft seal SKF 7410.

 

 

 Still can't make my mind up about the drive pulley. Leave on or try to get off?

[meadowfield 1,900]

haven't got numbers to hand but these are what i ordered.

 

Axle 1-1/8 x 1-3/8 x 1/8

Brake 3/4 x 1 x 1/8

 

I would look at changing input shaft, all mine have leaked there!!!

 

I'd get the pulley off - just to sort the seal. If you lose the end there's no huge detriment

[Stormin 4,458]

Sizes tally with seals I've removed, Mark. Numbers came from RS.

 

Job for tomorrow if time. Pulley off. I'll see about getting the chassis and front axle blasted as well. The sooner it's a rolling chassis again the better.

 

Found a plastic dustbin round the back of the shed. So I'll be having a go at making an E-tank for the other bits.

 

BTW. How did this thread get hot so fast?

[meadowfield 1,900]

E tank is a must, got some commando wheels in mine cooking at the moment.

It's slow but incredibly low effort, so if you are patient it's a great way of cleaning....

[Ian 2,417]

I'm with Mark, an E tank is the way to go.. Parts can be stewing in it giving you plenty of time to get on with other bits

[Stormin 4,458]

 I got the drive pulley off this morning. Found why it had been welded on. No key.

 

 Next job to get the shaft seal out. No way was it coming out with shaft in place, so no choice but to remove the shaft. That started an in depth lesson in Wheel Horse transmission boxes. I'll not go into to much detail , suffice to say you do not need to remove the selector forks shafts. The detent balls can be a right pain to put back.

 

 Anyway, I now know what bearings and seals are required. I also now require the shoulder bolt for the high/low selector fork. Slight mishap and it's sapped the threads off.

 

 This is what it looks like if anyone can help with a replacement.

 

 

In one piece, please.

[Ian 2,417]

I can understand why the key was missing, it's very easy to push the key out when pushing the pulley on.. Don't it myself with realizing until I noticed I had no drive!

 

Looks like your having fun with the trans Norm, Sorry I can't help you with the high/low selector fork bolt..

[the showman 4,074]

I'll have a look tomorrow Norm, ive got a 8 speed tranny in bits

[Stormin 4,458]

 Thanks Chris. Just be careful. Mine snapped like a wet sock. Looking at the break it looks flawed though.

 

 Another little problem is the lift lever components.  The R clips came out easy, but the centre tubing is well stuck on the shaft. I'll take it up to the farm tomorrow and apply some heat.

 

Why do we start these things.

[the showman 4,074]

Bad news Norm, mines not the same. 

[Stormin 4,458]

Pleased about that.

[Stormin 4,458]

 

 

This arrived today. Many thanks to Chris.

 

Should be a photo of a bolt.