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Author Topic: 76 CB550 Cafe build  (Read 86364 times)

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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #125 on: May 27, 2017, 06:37:25 AM »
I've got the retainer out.  The two halves should just separate at that point?  There is probably some corrosion holding them together, just didn't want to be banging on the hub and damage something.

Thanks.  You must live on here, as soon as I have a question my phone buzzes to tell me you've responded :)
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #126 on: May 27, 2017, 01:32:50 PM »
Bearing are STUCK in the hub.  Bought a blind bearing puller, no dice.  Put the hub in the oven for twenty minutes thinking the aluminum hub would expand more than the steel bearing, nada.  Put the bearing puller in place, flipped the hub over and put it in my press  and it just started to round off the puller lips.  Next step is a PB Blaster soak overnight and try again.  Any words of wisdom?

« Last Edit: July 07, 2017, 09:02:13 AM by tshrey »
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Offline calj737

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Re: 76 CB550 Cafe build
« Reply #127 on: May 27, 2017, 01:35:23 PM »
Pop the whole thing in the freezer for about 2 hours. Bearing might fall straight out afterwards.
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline cantarauk

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76 CB550 Cafe build
« Reply #128 on: May 27, 2017, 01:55:08 PM »
I had similar issue where mine were stuck solid. I was planning to replace the bearings anyway and ended up using a rawl bolt tightened against the bearing and then a steel rod inserted the other side and a large hammer. Worked a treat.

See
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #129 on: May 27, 2017, 02:29:51 PM »
Quote from: calj737 on May 27, 2017, 01:35:23 PM
Pop the whole thing in the freezer for about 2 hours. Bearing might fall straight out afterwards.

Really?  The aluminum hub should contract a lot more than the steel bearing, no?
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #130 on: May 27, 2017, 02:30:47 PM »
Quote from: cantarauk on May 27, 2017, 01:55:08 PM
I had similar issue where mine were stuck solid. I was planning to replace the bearings anyway and ended up using a rawl bolt tightened against the bearing and then a steel rod inserted the other side and a large hammer. Worked a treat.

See
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I had to look up what a rawl bolt was.  Guess I'm heading to Home Depot...
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Offline calj737

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Re: 76 CB550 Cafe build
« Reply #131 on: May 27, 2017, 02:57:01 PM »
Quote from: tshrey on May 27, 2017, 02:29:51 PM
Quote from: calj737 on May 27, 2017, 01:35:23 PM
Pop the whole thing in the freezer for about 2 hours. Bearing might fall straight out afterwards.

Really?  The aluminum hub should contract a lot more than the steel bearing, no?
They both contract and expand under temperatures at different rates. Pop it in and watch it fall out.
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #132 on: May 28, 2017, 07:38:01 PM »
Bearings are out.  Rawl bolt for the win, but even that took some doing.  Propane torch to the hub until it reached about 300 degrees, I got one side backed out enough that I could slide the inner spacer tube over enough to put a rod on the bearing itself and pound that.  Even with that it took a lot of hits with a mini sledge.

Freezer doesn't work.  Aluminum expansion is 13 units (10e-6m/C) and steel is around 7 depending on the alloy.  If you drop both of them 20 degrees the aluminum shrinks against the bearing even tighter. 

Please tell me that this inner sleeve on the bearing is part of the bearing itself, because I gashed the hell out of it getting the bearing out.  Also, the inside spacer tube is steel and there is nothing but a compression load on that so I'm going to turn one out of aluminum to save some weight.



« Last Edit: July 07, 2017, 09:00:47 AM by tshrey »
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Offline cantarauk

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Re: 76 CB550 Cafe build
« Reply #133 on: May 29, 2017, 12:36:40 AM »
Hi,

I have a new bearing kit I bought for mine a few weeks ago which I will open so you can see what you get. The sleeve is not part of the bearing but should be loose and is required.




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Offline cantarauk

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Re: 76 CB550 Cafe build
« Reply #134 on: May 29, 2017, 10:24:33 AM »
Hi Tshrey,

Here are all the components and bearings pulled from my rear hub for your reference. These are from a cb500 but should be the same as 550.

. 


The this is what you get in the All Balls new bearing pack. So that means you may need to machine up a new inner sleeve replacement for the one that you gashed.

.

Hope that helps. Also I may have to work on my photography as yours seems loads better compared to my piss poor mobile snaps.


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« Last Edit: May 29, 2017, 10:28:53 AM by cantarauk »
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #135 on: May 29, 2017, 12:07:26 PM »
Thanks, that does help.  Guess I need to press out that center sleeve to get measurements...
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #136 on: May 29, 2017, 03:02:56 PM »
So I guess it was just a suction fit from the grease holding that sleeve in place, it pressed right out with my finger.  I cleaned it up and could probably use it but again it is steel and I'd rather just turn one out of aluminum.

Today I have to degrease the parts and get them in the blast cabinet to get ready for powder.  Time to make another Cognito order for spokes and a rim...
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Offline cantarauk

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Re: 76 CB550 Cafe build
« Reply #137 on: May 30, 2017, 12:14:04 AM »
What rim and tyre sizes are you planning to run off the back ?


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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #138 on: May 30, 2017, 08:50:20 AM »
18x2.5" rim with a 100/80 Avon roadrider.  Keeps the same overall diameter as the front.
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #139 on: June 13, 2017, 11:04:08 AM »
Ballpark, how much should I expect to pay at a machine shop to have my jugs bored out to accept the dynoman 592 pistons?  I found an engine shop and he said $250.  That seems like a lot to me, but I have no reference.
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Offline calj737

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Re: 76 CB550 Cafe build
« Reply #140 on: June 13, 2017, 11:16:22 AM »
That's high, but it may be due to market pricing. I pay about $40/hole for over-bore and hone.
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline riverfever

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Re: 76 CB550 Cafe build
« Reply #141 on: June 13, 2017, 12:14:49 PM »
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Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #142 on: July 06, 2017, 12:31:51 PM »
So two things.  First, obviously Photobucket now sucks.  They want me to pay $400 yearly to host my pics with the style of links I've been using for years or I have to go back through and figure out which links work for free.  If anyone knows can you tell me? Or what is the preferred way to put pics up in this forum?

Second, I have my rear wheel laced up and am reassembling it with aluminum spacers I machined between the bearings instead of the steel boat anchors that were there.  Can anyone tell me what the o-ring is for that is number 51 on this schematic?

https://www.cmsnl.com/honda-cb550-k2-four-1976-usa_model464/partslist/F++04.html#results

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Offline calj737

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Re: 76 CB550 Cafe build
« Reply #143 on: July 06, 2017, 01:08:04 PM »
It separates the sprocket from the retainer
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #144 on: July 06, 2017, 01:21:10 PM »
Like to prevent binding?  I've only ever seen o-rings used as seals of some kind.  Why does it have to be there?
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Offline calj737

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Re: 76 CB550 Cafe build
« Reply #145 on: July 06, 2017, 01:32:52 PM »
To create a void to prevent metal-metal contact
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"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline tshrey

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Re: 76 CB550 Cafe build
« Reply #146 on: July 06, 2017, 01:59:04 PM »
Ok cool.  Provided the rubber is still intact then I can still use it I guess?  I was just concerned that it was acting as some sort of seal, but what it would be sealing I couldn't figure out.

Thanks.
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Offline Godffery

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Re: 76 CB550 Cafe build
« Reply #147 on: July 06, 2017, 09:18:51 PM »
 Actually, it dose act as a seal.  it keeps water out of the bearing area.
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Offline Lostboy Steve

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Re: 76 CB550 Cafe build
« Reply #148 on: July 07, 2017, 02:56:53 AM »
Jesus Christ, another thread ruined by photo bucket.


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Offline Lostboy Steve

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Re: 76 CB550 Cafe build
« Reply #149 on: July 07, 2017, 02:59:50 AM »
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