Author Topic: 78F New rear frame, seat, and tank stripe. (Read 31432 times)

apetersonboy · « **Reply #50 on:** July 09, 2013, 12:08:34 PM »

Thanks for the help! Any advice on how to get it off? Elbow grease? Press?

Bankerdanny · « **Reply #51 on:** July 09, 2013, 12:16:32 PM »

If you go to the repair section of the Motorcycle Classics website they did the conversion on the CB500 cafe project and there is an article with step-by-step instructions on how to do it with lots of pictures.

apetersonboy · « **Reply #52 on:** July 09, 2013, 12:26:39 PM »

Great info there, but it didn't help me with getting the race that is on the stem off. How should I go about doing that?

Bankerdanny · « **Reply #53 on:** July 09, 2013, 01:29:42 PM »

Heat. You need to expand the race so you can get it off of the stem. You don't need to go nuts, a propane torch should be fine. Heated you should be able to tap it off with a drift. Tap in circles around the bottom of the race so that it doesn't jam itself against th steerer.

The All Balls kit will come with a new seal to sit under the race.

apetersonboy · « **Reply #54 on:** July 09, 2013, 01:52:44 PM »

Got it off! Dremel tool did the trick. Minimal damage to the stem.

apetersonboy · « **Reply #55 on:** July 09, 2013, 04:59:53 PM »

Okay, I followed the directions on that Class Motorcycle website on bearing install. I put the race into the bottom of the neck as far as I could with a 2x4 and a hammer. Once the race got near flush with the neck, it stopped. No matter how hard I hit, it wouldn't go any farther. So, I figured I had it set.

I pressed the bearing on with a weather seal/washer beneath it.

Went to put it in. Heres what it looks like

With the bottom triple held up as high as it will go, the weather seal doesn't even end up inside the frame tube. Also, it looks to me like the stopper tabs aren't lined up like they are supposed to be?

ALSO another reason I believe something is not like its supposed to be, is the fact that this looks like this:

apetersonboy · « **Reply #56 on:** July 09, 2013, 05:01:40 PM »

I'm getting a sinking feeling that I left a flat washer piece on/in the top of the frame tube where the top bearing is supposed to be sunk into the frame

$:-\$
Can anyone advise? PLease.

Bankerdanny · « **Reply #57 on:** July 09, 2013, 07:02:16 PM »

Yes, based on that last picture you the ball bearing race is still in the head tube, you need to drive it out otherwise you have no place to seat the race for the top bearing.

This is the picture of the top of the head tube from the Motorcycle Classics CB500. Notice the filler piece from your photo isn't present.

Bankerdanny · « **Reply #58 on:** July 09, 2013, 07:09:34 PM »

I'm also not sure that you have the lower race in far enough, but I can't tell without a picture. How far inside the tube is the race, that is to say, how far is the edge of the tube from the beginning of the race?

apetersonboy · « **Reply #59 on:** July 09, 2013, 08:35:39 PM »

The bottom race is flush with the edge of the frame tubing. It looks as if there is a little more room for it to go into but its stuck like I said. I will get pictures of it tomorrow.

So I guess I need to cut through my powder coat and pry that top piece out then huh?

It will hurt to carve up the fresh paint.

brandEn · « **Reply #60 on:** July 09, 2013, 08:50:56 PM »

I just installed a set of these in my bike. The bottom race goes in a bit more than flush and also in the All Balls kit you need to use the thinner spacer on the lower tree.

apetersonboy · « **Reply #61 on:** July 10, 2013, 05:52:05 AM »

Does it matter which spacer?

brandEn · « **Reply #62 on:** July 10, 2013, 05:55:50 AM »

Yea I think it's the ~~thicker~~ THINNER spacer. Do a forum search for All Balls kit or tapered bearing kit and you should find a couple helpful threads. I would do it for ya but I'm on my phone. If you don't have any luck by the time I get to my computer I can link ya ....

apetersonboy · « **Reply #63 on:** July 10, 2013, 05:58:51 AM »

Alright will do! I've found several threads, but its hard to find one that is specifically for the 78F so I'm not sure which spacer to use.

Also, should I bring my triple to a machine shop so they can press that bearing back off?

brandEn · « **Reply #64 on:** July 10, 2013, 06:16:53 AM »

Your F is no different than the K models as far as the neck and bearings are concerned. If your gentle you should be able to tap that bearing off.

apetersonboy · « **Reply #65 on:** July 10, 2013, 06:17:34 AM »

You are a huge help! Thank you

apetersonboy · « **Reply #66 on:** July 10, 2013, 07:16:09 AM »

Just ordered tires.
Bridgestone spitfires
100/90/19
120/90/18

brandEn · « **Reply #67 on:** July 10, 2013, 06:18:26 PM »

Tapered Steering Bearing Thread

Check out post #140 and after ...

I used these to help me with my installation. Using the freezer for your lower tree and the outer races works great. Also a piece of PVC works good to hammer the bearings onto the steering tube. I used the thinner spacer not the thicker one like I said earlier. But the the thicker one can be used to help with installation.

Hope this helps!

apetersonboy · « **Reply #68 on:** July 12, 2013, 02:38:47 PM »

Gonna go try getting that bearing off and carving through my powder to get the last race out!

PS, a ring of holiness hath arrived.

apetersonboy · « **Reply #69 on:** July 12, 2013, 03:54:31 PM »

Just popped the old bearing race out after carver through my powder.
Also, I tried to "tap" the new bearings off of the stem that I put on while stupidly leaving out the needed spacer. I thoroughly obliterated the weather seal. The bearings condition is not for certain but I am doubting its survival. Its not budging. I think I may just grab the dremel tool like last time and do some cutting

apetersonboy · « **Reply #70 on:** July 12, 2013, 03:55:45 PM »

Also, what is the least amount of time I can leave my bearing races in the freezer for the shrinkage to take effect?

cheftuskey121 · « **Reply #71 on:** July 12, 2013, 04:45:25 PM »

I would assume when they reach the temperature of the freezer...its not like they can get any colder. I would say at least 1 hour to be safe

Vinhead1957 · « **Reply #72 on:** July 12, 2013, 05:08:40 PM »

Shrinkage? Seinfeld ? Hour is good

apetersonboy · « **Reply #73 on:** July 12, 2013, 08:29:52 PM »

Thank you for the info chaps.

apetersonboy · « **Reply #74 on:** July 12, 2013, 09:53:31 PM »

So I was out in the shed today and and I figured out why my lower bearing race wouldn't go in.
Its because the old one was still in there.
Dumb.
Also, the top one was in there too so I carved that out!
Tomorrow, my frozen races shall be set.

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Author Topic: 78F New rear frame, seat, and tank stripe. (Read 31432 times)