CB550 refurb

[Sesman]

You do indeed, and I’d recommend renewing the seals. What I was very poorly alluding to was if you don’t have the special tool, leave the rotor on, split the cases then ease the rotor off with aid of a rubber hammer, applying judicious blows. Not ideal, but it works for me. You do need to be careful though as over enthusiastic blows will create problems. If in doubt I’d recommend buying or borrowing the rotor extractor tool.

[Johnny4428]

I have a universal puller might be able to do something with that, I also remember something about a car wheel stud being of size, maybe it was a commercial one? Important to protect crankshaft thread though.

[Bryanj]

DO NOT use a 3 legged universal puller as you will wreck the rotor and crank

[Johnny4428]

No problem Bryan!

[Johnny4428]

Just looked back on forum, car stud 16 x 1.5mm will do the job, or similar bolt.

[Orcade-Ian]

Hi Johnny,
I can soon screw-cut a piece of bar for you to use as an extractor if you can't find one.

Ian

[Johnny4428]

Ta much Ian! Forever helpful as usual! I will have a rake about to see what I find and let you know.

[Johnny4428]

No hassle , she’s off!





Sent from my iPhone using Tapatalk

[Johnny4428]

Nice pair! this is looking like a ground up restoration. Wheels done, new spokes rims,bearings and new tyres, forks done, cleaned buffed and new seals fitted. Awaiting spares for engine to allow progress to next stage.




Sent from my iPad using Tapatalk

[McCabe-Thiele (Ted)]

Nice looking wheels Johnny you must be chuffed to bits with your lacing. l

Looking at your alternator rotor what are those symetrical  marks on the steel has something been binding or is it how they are machined when new? I think mine had a similar appearance.

[Johnny4428]

Think it’s machining marks Ted. Yes pleased with the wheels, although the spokes that were in the wheels were in remarkable condition although dull in colour. I have kept them with a view to replating them. But 30 odd quid for a replacement set from DS is it worth it?

[Gromitdog]

Hi Jonny 4428

I am a little behind you in doing the same thing with my engine I managed to strip the top half down and separated the head and bores, Then lower part of the upper engine casing, Can I just confirm the thread size is 16mm diameter x 1.5 thread that is required to remove the rotor? Unfortunate y compressor is not got enough power to undo the nut so will have to source anther way to crack the bolt off.

I look fwd to reading your progress I am a bit worried that this looks ever so complicated once you lift the upper engine casing off there's loads of moving parts that need carful stripping down and cleaning. 

Can anyone suggest  a good economical way for cleaning these parts I though of a cut open plastic drum and some petrol and just wash them in that .

Sorry I can seem to get pictures to load up on here even with steves help so annoying

Nige

[Bryanj]

Having removed the primary shaft turn the bottom end over and remove lower case as everything will sit happily in upper case.
Can give you loads of tips on dissassembly and rebuild.
As to rotor bolt use decent socket with tee bar and whack/shock with hammer of decent size

[Laverda Dave]

Looking good Johnny. You've noticed the trap set by a bike that requires a 'bit of a cosmetic refresh' ends up as restoration 😉. It's always difficult when replacing an old dog eared part with a new one and not to continue to replace other parts whilst you are there and winter is coming anyway etc, etc.......

[McCabe-Thiele (Ted)]

Not that it needs confirming, Bryan is correct, once you have the head & block off it's easy to work with the engine upside down,
I just made a sort of small wooden tressle to hold the casing. I use an old bakers oven tray underneath to hold any bolts or liquid spilling everywhere - large cat or dog tray works as well.

This photo is my high tech arrangement, I had some small extra bits of wood to use if needed as wedges. The casing did not sit on the head studs they were just clear of the base by about 1/3". The second photo was taken before I put some wooden packing in place.

.Heath Robinson by Macabe Thiele, on Flickr

.casings before stripping paint by Macabe Thiele, on Flickr