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1967 CB450K0 Black Bomber Rebuild - By Royhall
royhall:
Since the tank has come back from the painters I thought I would have a go at building that up. This is what it used to be like:
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Bit of a crusty mess I think you would agree. This is how the tank looks today. Well pleased with it.
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These are my favourite parts of a rebuild. Makes no difference that the tank wont be going onto the bike for ages, it's like a shot in the arm.
royhall:
The engine is now finished except for installing the electronic ignition. I shall do that on the bike when I am doing the rest of the wiring. Here's the finished product.
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There may be a break in proceedings now whilst I reassemble the engine on my CB350F so that I can make room in the garage for the Bombers rolling frame.
royhall:
Morning!
Finished the other jobs so the back end of the garage is now clear meaning I now have a chance to get back to the Bomber. My storage lock-up is only about a half mile away so decided to just push it back to the garage. It was amazing the interest it got from people in the streets, I met an old guy that restores BSA's that I had never met or heard of that lives in the next Avenue. He was round at the garage for nearly two hours. Really nice chap, and he's going to help out with a few items.
Now back in the garage the old girl is looking a bit past her best (sorry about the thumb in photo 1).
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It should be fairly easy to take apart as it looks to be just loosely assembled, plus I have spent weeks soaking everything in Plus-Gas.
An hour and a half later it's packed away in boxes and bags.
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From the look of the parts, this one is going to take quite a time to complete. When i've finished packing it all away, I am going to take it one chunk at a time. I am going to start with the wheels as they require re-chroming, new parts, polishing, and wheel building so I would like to get that aspect underway quickly.
royhall:
Not sure how old the tyres were but they took some wrestling to get them off, I was laying on top of it on the floor at one point. They were as hard as nails but I got them off in the end. Got the wheels on the bench and first measured and recorded the offset for both wheels. I'm trying to help the wheel builder a bit and also reduce the chances of a mistake. With that in mind, I have decided to carefully remove the old spokes so they can be replicated in stainless. I would normally just angle grind through them to speed up the job. Bit of a long boring job but eventually I got every spoke out intact.
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I have got an OEM replacement rim for the rear wheel as the corrosion on the old one is just too far gone. The front rim is slightly rusty but should be okay for a re-chrome. Unfortunately the rear hub is also scrap as there is extensive cracking around the cush drive areas of the casting. Three out of the four bosses are cracked. So that's the whole wheel that's scrap, hub/spokes/rim. I guess it's to be expected on a 52 year old bike.
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Looks like the search is on for a new rear hub. I need to research a bit more but I think they are the same on all the CB450K models plus the 500T so am hoping the search wont be too hard. But I think I will start with our very own Mr Ashimoto as he appears to have a good stash of Bomber bits so will PM him.
AshimotoK0:
I have a decent rear hub you can have Roy ... see PM. Just need to go to my stash and get it and check it.
Did you note that Bomber spoke nipples are made of plated brass .. Mick (kettle738) told me about that.
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