Author Topic: 76 CB550 Cafe build (Read 85849 times)

SF · « **Reply #75 on:** January 15, 2017, 02:49:03 PM »

3/8's! You could drill a bunch of speed holes in them.....

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RAFster122s · « **Reply #76 on:** January 15, 2017, 04:41:33 PM »

That 3/8" thick steel/ or aluminum needs to hold up with your weight plus a good hard bump or two if you have the displeasure of hitting a pothole (deep one) or otherroad debris with you up on pegs for a railway tracks, etc.
David

SOHC4 Cafe Racer Fan · « **Reply #77 on:** January 15, 2017, 04:43:32 PM »

The billet brackets are robust, but are lighter and are machined.

tshrey · « **Reply #78 on:** January 20, 2017, 10:01:10 PM »

Did some more metal work and powder coating today. Sprocket cover was a mess, lots of scrapes in it as well as pits and veins from just being old cast aluminum. Used hi temp Lab Metal and some 100 grit sandpaper to fill in everything and then powder coated the whole thing in the black texture that I did on the case halves. Found a fantastic trick as well - the Lab Metal doesn't conduct the electric field the same as the aluminum, so you get some funny patterns on the coating. I did the coating once, baked it and as soon as my timer went off I pulled the whole shelf out of the oven and did a light dusting coat with no voltage applied. The powder melted into place as soon as it hit the part to give perfect coverage. Another bake in the oven and it came out great.

Got the gloss coat on my rim done today as well, going to start lacing the front wheel up in the morning. Very exciting, should be interesting as I have absolutely no idea what I'm doing. How did anyone learn to do anything before the internet?

calj737 · « **Reply #79 on:** January 21, 2017, 03:40:18 AM »

In case you don't know, the pattern for the front hub is niside-inside. There are no outside spokes.

tshrey · « **Reply #80 on:** January 21, 2017, 10:16:34 AM »

Thanks for that, I definitely would not have laced it that way.

tshrey · « **Reply #81 on:** January 21, 2017, 11:51:30 AM »

So I'm about ready to chuck this wheel across the driveway. The people that work at Buchanan's must be mental doing this all day.

I figured you do one half of the wheel and then the other. That clearly is not correct because then you can't get the spokes in for the other side.

Someone want to give me a hint?

Flexia · « **Reply #82 on:** January 21, 2017, 12:09:42 PM »

Do every forth spoke all the way around then do the same for the next open hole. The again and again and your done. Then true the wheel up

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tshrey · « **Reply #83 on:** January 21, 2017, 12:15:59 PM »

There are two sets of spokes. Do I start with the ones that have a short leg or a long leg first?

calj737 · « **Reply #84 on:** January 21, 2017, 05:21:09 PM »

Install all spokes first, loosely. Get your pattern correct. Then, start tightening in a sequence.

tshrey · « **Reply #85 on:** January 22, 2017, 06:46:29 AM »

Thanks, that's what I was looking for.

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bill440cars · « **Reply #86 on:** January 22, 2017, 07:30:34 AM »

Too bad that a person can't get things done, correctly. Glad the discrepancy was caught though. Better now, than later.

tshrey · « **Reply #87 on:** January 22, 2017, 12:45:54 PM »

tshrey · « **Reply #88 on:** January 23, 2017, 09:41:56 AM »

I've never given up on anything in my life but fuc! this lacing crap. After six different attempts I happened to look at my freshly powdercoated rim and realized that the threads on the stainless spokes scratched the #$%* out of it. Now I have to strip it and have it repowdered (it is just a tiny bit too big to fit in my oven) and send all this crap off to Buchannans. Ugh.

calj737 · « **Reply #89 on:** January 23, 2017, 09:46:53 AM »

Send it all down to Cognito. They can/will lace it up for you and can powder coat it too.

tshrey · « **Reply #90 on:** January 24, 2017, 06:00:20 AM »

After a good night's sleep and the realization that I've already screwed up the powder and will have to redo it I tried again. The critical thing is that you get the spokes ordered correctly before you start. All spokes in, alternating short and long legs on one side and then flip the wheel over. Identify a short leg spoke on the bottom and back up half a position (top and bottom holes are offset by half a position) and start with a short leg there. Lay all the spokes out like the pattern in the pic above that Cal posted. Rotate the rim until the holes line up and start in one position and do them in order, don't go all the way around the rim doing every fourth hole. You want to thread the nipples on up to where the threads aren't showing - this way the hub gets pulled toward the places you've already done and gives you room to move the spokes on the other side into position.

If you started with a powder coated rim (or polished), put a couple layers of masking tape down to protect the surface.

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calj737 · « **Reply #91 on:** January 24, 2017, 09:48:32 AM »

Rousing golf claps!

tshrey · « **Reply #92 on:** January 27, 2017, 07:49:11 AM »

I've just read through a bunch of build threads and can't find it - how does one get in touch with Nils about vapor blasting?

calj737 · « **Reply #93 on:** January 27, 2017, 10:26:10 AM »

https://www.restocycle.com

SOHC4 Cafe Racer Fan · « **Reply #94 on:** January 27, 2017, 03:35:43 PM »

If you are completely tearing down your motor and splitting the cases to at least re-paint it, there is no reason to not vapor blast it.

tshrey · « **Reply #95 on:** January 27, 2017, 04:19:46 PM »

I'm not, cases are done. I'm not happy with the powder coat on the jugs and was hoping to avoid chemically stripping them, but I read that vapor blasting will not take off powder so I guess I'm buying some aircraft stripper.

calj737 · « **Reply #96 on:** January 27, 2017, 04:48:25 PM »

You can glass bead blast the powder coat off. Far easier than Aircraft Stripper.

tshrey · « **Reply #97 on:** January 29, 2017, 12:47:00 PM »

Put the front end all together with clipons, going to bolt on the rear sets and get to work on the rear hoop. Seeing it look like an actual bike is getting me pretty excited. Ordered the carbon fiber cloth for the seat and tail section.

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calj737 · « **Reply #98 on:** January 29, 2017, 04:00:16 PM »

I hope when it's time for the final build that you install your forks correctly. They're reversed in the picture

Godffery · « **Reply #99 on:** January 29, 2017, 05:04:19 PM »

Quote from: calj737 on January 27, 2017, 04:48:25 PM

You can glass bead blast the powder coat off. Far easier than Aircraft Stripper.

You can also have that baked off by the powder coat shop.

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Author Topic: 76 CB550 Cafe build (Read 85849 times)