Topic: 1973 CB350F "Modest Original" build

[iiAtlas]

You may consider building the wheel around that hub first before dealing with the bearings;it's Very difficult to remove that w/o a wheel to grab a hold of for leverage.

I knew I'd regret taking the wheel apart before disassembling the hub, but I decided it was worth it in the name of progress.  I guess my best bet is to complete the rim IE powder and plating, then rebuild and redo the bearings.

[grcamna2]

You could build the wheel and then tape-up the rim so it won't get scratched.

[iiAtlas]

What exactly do you mean by "verify the stakes are drilled out" ?

See the small holes in the retainer? That's from the factory where they drove small "stakes" into the hub to lock the retainer in place. To remove the retainer, you must drill those out (there like a rivet) so the retainer spins freely. I can't tell whether yours are drilled or not. They are about 3/8" long from retainer outer edge to final bottom of the stake.

Got it.  Will check that later tonight.  Upon reassembly do I need to re-stake the hub?  Do I need to do all this/should I be doing all this to replace the bearing?  Thanks guys!

[MoMo]

I think a 3/32 bit will work to drill out the stake, and as cal said drill down that distance. I restake mine by using a pointed punch.  Good luck, should be easier after drilling

[iiAtlas]

I think a 3/32 bit will work to drill out the stake, and as cal said drill down that distance. I restake mine by using a pointed punch.  Good luck, should be easier after drilling

3/32 - can do!

//

A quick note, you may notice a thread rename.  "Modest Original" is what I've come up with.  I feel this better describes what I'm getting at.  A relatively original bike with modest upgrades/changes.  Apart from that sweet airbox I got    Lightweight and minimal come to mind, but original will be the prevailing theme.  "Restomod" could be used I suppose, but I'll take "Modest Original" - let me know your thoughts.

[MoMo]

Everyone knows restomod(restoring close to stock with  some modifications).  The word modest describes someone who is moderate(mild but not over the top)

[iiAtlas]

Everyone knows restomod(restoring close to stock with  some modifications).  The word modest describes someone who is moderate(mild but not over the top)

I'll stick with modest, that's what I'm aiming for

[iiAtlas]

Rear wheel de-laced just about



Was helping a friend with an oil change on his airhead, but managed to mindlessly make progress on this.







Next up finish removing the spokes, remove the tire + tube, clean everything up and expect for wear.  How far apart should I take this brake?  And yes...I'm sure some of these next steps would be easier had I not removed the hub from the rim. 

[iiAtlas]

use a cut-off wheel and slice that tire into pieces. Makes removal a lot easier. As for the brake/rear rebuild, go as far as you can to insure best results.

That's the plan!

[zammykoo]

Looking good! This is helping me with my tear down process. Can't wait to see it finished 

[iiAtlas]

Looking good! This is helping me with my tear down process. Can't wait to see it finished 

Thanks for the motivation!  Tear down is just about all I can do thus far...hah  will start trying the inverse soon enough here.

[MoMo]

Take the brake completely apart.

[iiAtlas]

Take the brake completely apart.

Deal! Taking apart...I can do that...

[MoMo]

Confucius say, better to not cut corners rather than have corner cut you when brake fail

[iiAtlas]

Confucius say, better to not cut corners rather than have corner cut you when brake fail

Hah..one of his many great philosophies.  Goal wasn't necessarily to cut corners but rather to avoid opening up a can of worms if possible.  Haven't messed much with drum brakes so I wasn't sure if it we're some sort of spring loaded disaster waiting to happen!  Will follow the manual and crack her open.  Expect some shots of that soon

[MoMo]

You'll most likely find the pivot cam needs a good cleaning and polishing and then a bit of lube before reassembly

[zammykoo]

Hah..one of his many great philosophies.  Goal wasn't necessarily to cut corners but rather to avoid opening up a can of worms if possible.  Haven't messed much with drum brakes so I wasn't sure if it we're some sort of spring loaded disaster waiting to happen!  Will follow the manual and crack her open.  Expect some shots of that soon

My thoughts exactly when I took a glance at my brake last night. I imagined myself in one of those snake-in-a-can scenario, haha.

[iiAtlas]

Hah..one of his many great philosophies.  Goal wasn't necessarily to cut corners but rather to avoid opening up a can of worms if possible.  Haven't messed much with drum brakes so I wasn't sure if it we're some sort of spring loaded disaster waiting to happen!  Will follow the manual and crack her open.  Expect some shots of that soon

My thoughts exactly when I took a glance at my brake last night. I imagined myself in one of those snake-in-a-can scenario, haha.

Yes! I thought better to ask than to enter.  Snake-in-a-can was totally on my mind too...hah

In other news, got half of the rear wheel spokes off.  The other half are blocked by the brake drum "cover" ... this thing here



No worries, off she comes!  Thoughts on these spokes?  They look pretty rusted.  Far worse than my front.  After prep for plating I will know more.  They may not be salvageable.

[grcamna2]

Replace the spokes. Stockers, or if budget permits, Buchanans has stainless spokes.

Those old spokes might snap,they're too rusty;I wouldn't get china-spokes either.

[MoMo]

I may have a set of spokes to donate for the cost of shipping .  Far better than what you have there....Larry

[iiAtlas]

Replace the spokes. Stockers, or if budget permits, Buchanans has stainless spokes.

Replace the spokes. Stockers, or if budget permits, Buchanans has stainless spokes.

Those old spokes might snap,they're too rusty;I wouldn't get china-spokes either.

Deal.

I may have a set of spokes to donate for the cost of shipping .  Far better than what you have there....Larry

Wow Larry, thanks for the offer!  I'd be happy to take you up on that + some $ for you time.  PM me!

[iiAtlas]

First off, thank you MoMo for so generously offering to send me your set of rear spokes.  I truly appreciate it, and I'm sure my ol' gal will too!  The current ones are pretty rusty.  I'm happy to pay-forward the favor and send this to whomever free of charge, though fair warning they may not be salvageable.

Anyways, the rear brake drum, as you all predicated, was laughably easy to remove.  After getting that crown not on the axle off a few taps with the mallet and she was free.  The rest came apart easy.



I feel appropriately embarrassed for making such a fuss about it  but thank you all nonetheless for the encouragement.  Luckily, the brake drum is not the snake-in-a-can I envisioned.



I'd like to give this a rebuild while I have it apart.  What are the serviceable items?  What would the recommended service be?





I've also heard something about this rear bearing retainer being reverse thread...or maybe it was the front.  Can any of you verify that off-hand?  I'm sure a quick google search will do the same if not.



I also had a go at removing the rear tire.  Somehow I managed the front one okay with this tool but I'll right that off as sheer luck...



This rounds not going as smoothly...hah...I suppose I will need to change tools or at least methods.  Don't want to end up sawing through my rim!

[MoMo]

the shoes look good but...........? Remove the cotter pin then stretch the brakes by pulling at the center. You shold be able to pull them off.  Then remove the brake cam(one with the green stripe) and thoroughly clean it and the hole it goes into.  Add a bit of waterproof grease on the cam before reinserting.  Also, clean the stationary pivot post.. And.........buy a good set of tire irons and use spray nine or something similar to remove the tire.  You're welcome, glad to be of assistance...Larry

[iiAtlas]

the shoes look good but...........? Remove the cotter pin then stretch the brakes by pulling at the center. You shold be able to pull them off.  Then remove the brake cam(one with the green stripe) and thoroughly clean it and the hole it goes into.  Add a bit of waterproof grease on the cam before reinserting.  Also, clean the stationary pivot post.. And.........buy a good set of tire irons and use spray nine or something similar to remove the tire.  You're welcome, glad to be of assistance...Larry

Will do!  The tire thing was a random attempt...did what I could with what I had.  Will get a set of tire irons.  Thanks for the steps on the brake work, I will do that!

[grcamna2]

the shoes look good but...........? Remove the cotter pin then stretch the brakes by pulling at the center. You shold be able to pull them off.  Then remove the brake cam(one with the green stripe) and thoroughly clean it and the hole it goes into.  Add a bit of waterproof grease on the cam before reinserting.  Also, clean the stationary pivot post.. And.........buy a good set of tire irons and use spray nine or something similar to remove the tire.  You're welcome, glad to be of assistance...Larry

Will do!  The tire thing was a random attempt...did what I could with what I had.  Will get a set of tire irons.  Thanks for the steps on the brake work, I will do that!

iiAtlas,
What's your name?
 I think it would be good to buy a pr. of this style tire levers,they give you plenty of leverage(15" long)and are hardened steel & curved to keep from ripping the bead of the tire when you're using them.