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Author Topic: 1981 CB650C aka "The Titanic's Anchor"  (Read 54727 times)

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Offline fmctm1sw

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #25 on: November 18, 2011, 06:10:16 pm »
Quote from: F16Viper68 on November 15, 2011, 08:14:20 pm
I started looking at the wiring and noticed the wiring had been crushed by the primary cover.  I'll see if it's repairable later in the week.  I can't believe this didn't kill the R/R but it checks good by the DVM.   



Dave...

Yeah, I think you'll be ok.  I've done two oil pressure switch wires that were crimped like that.  I usually splice and solder them.  Then slide some heat shrink over the connections.  Heat shrink has to go on first obviously...
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Quote from: 754
Dude is that a tire ? or an O-ring..??

Quote from: inkscars
This is not a pod thread
This is not a #$%* on my vacuum gauges thread
This is a help or GTFO thread.

1973 CB350F
1973 CB350G
1975 CB550K
1983 GL650I
1973 CB750K3 (http://forums.sohc4.net/index.php?topic=92888.0)
1984 Kawasaki KLT-250 (AKA 3 wheeler of death)
1994 Honda TRX300
1999 Honda TRX250

Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #26 on: November 20, 2011, 04:33:09 pm »
Quote from: fmctm1sw on November 18, 2011, 06:10:16 pm
Quote from: F16Viper68 on November 15, 2011, 08:14:20 pm
I started looking at the wiring and noticed the wiring had been crushed by the primary cover.  I'll see if it's repairable later in the week.  I can't believe this didn't kill the R/R but it checks good by the DVM.   



Dave...

Yeah, I think you'll be ok.  I've done two oil pressure switch wires that were crimped like that.  I usually splice and solder them.  Then slide some heat shrink over the connections.  Heat shrink has to go on first obviously...



Yeah, the wiring wiring was pretty crisp for about two inches towards the stator.  So I ended up splicing in about three inches of wiring, soldering the ends, melting on the heat shrink, and wrappng everything in electrical tape.  Once I got everything back together I re-ran my check checks and it's charging!  One thing down.   Off the the forks. 
« Last Edit: November 20, 2011, 04:34:47 pm by F16Viper68 »
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #27 on: November 20, 2011, 04:49:44 pm »
Ok, today was about getting the fork seals replaced.  As you can see below they've been leaking.   ;D





Everything came apart pretty easily.





When I pulled off the dust seals I discovered I was in for a battle.  The c-clips were rusted in there pretty good.  I scooped out as much of the gunk I could, blasted it with air, and soaked them in PB Blaster for about six hours.  After wrapping the fork tubes in blue painters tape I started tapping the clips with a drift pin to see if I could break it loose.  After much fighting was able to remove the clips and washers. 

Removing the seals was accomplished by blocking the air hole, filling it with ATF fluid, and using a wood clamp to compress the fork which brings the seal up to the top. 

Despite my efforts the seals still came out crooked (not as crooked as the pic.  That's after prying for awhile) so I spent about 30 minutes prying them out.





The longest part of this job was the polishing and buffing.  Holy crap getting those DoD sticker off was a MoFo.  I have a lot to learn about polishing but I think they look better than they did when I took them off the bike.   ;D







« Last Edit: November 20, 2011, 04:51:50 pm by F16Viper68 »
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #28 on: November 24, 2011, 02:04:44 pm »
Happy Thanksgiving!!!

I had a few hours to kill this morning so I decided to disassemble the steering stem and checking the bearings.  When I started to remove the handlebars I noticed the movement left and right wasn't smooth at all.  As a matter a fact it felt like there was a "dent" position when the bars were centered up.  Yeah....feeling of dread closes in.  :-[





I pulled the stem apart I counted 18 balls for the top bearing and 15 (wtf) for the bottom.  According to all my manuals there's supposed to be 18 on the top and 19 on the bottom?!?!  So where the hell are the missing four?  They aren't on the garage floor before you ask because I searching to ensure they didn't drop plus I would have heard them drop.

Well I found a package of 100 ball bearings (1/4" steel/chrome) on Amazon for $5.00 shipped so I'll just have to wait till those show up before I start putting everything back together  :-\ 



Well since I now have some time before I can put the steering stem back together I'm probably going to take the headlight bucket apart and clean it up as best as I can.  I'll also use the time to start rebuilding the calipers and master cylinder which is going to be a joy. 





Dave...
« Last Edit: November 24, 2011, 02:06:56 pm by F16Viper68 »
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Offline fmctm1sw

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #29 on: November 24, 2011, 04:46:20 pm »
Nice job on the fork legs.  I just don't have the patience.  I'd recommend putting a tapered bearing set in the stem since you have it apart (I think I saw a thread where you were considering it...)
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Quote from: 754
Dude is that a tire ? or an O-ring..??

Quote from: inkscars
This is not a pod thread
This is not a #$%* on my vacuum gauges thread
This is a help or GTFO thread.

1973 CB350F
1973 CB350G
1975 CB550K
1983 GL650I
1973 CB750K3 (http://forums.sohc4.net/index.php?topic=92888.0)
1984 Kawasaki KLT-250 (AKA 3 wheeler of death)
1994 Honda TRX300
1999 Honda TRX250

Offline scunny

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #30 on: November 25, 2011, 01:22:16 pm »
instead of mucking around with that master, check out the cost of a new replacement one from David Silver spares, great price and not much more than the rebuild kit.
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #31 on: November 26, 2011, 07:50:01 am »
Quote from: fmctm1sw on November 24, 2011, 04:46:20 pm
Nice job on the fork legs.  I just don't have the patience.  I'd recommend putting a tapered bearing set in the stem since you have it apart (I think I saw a thread where you were considering it...)

Replacing them with tappered bearings does seem to be the way to go but that's to have wait till I do the frame blast/paint.  Right now I'm simply trying to clean it up a bit and get it on the road before I drop too much more money on this thing. 

Re-assembly of the front end starts in a few minutes.

Dave...
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #32 on: November 26, 2011, 07:51:27 am »
Quote from: scunny on November 25, 2011, 01:22:16 pm
instead of mucking around with that master, check out the cost of a new replacement one from David Silver spares, great price and not much more than the rebuild kit.

You know I looked at David's site but didn't see a replacement for the 1981 CB650C.  I found them on eBay but not on David Silvers.  I'll give the rebuild a go (parts are already here) and see what happens.

Thanks for the advice either way. 

Dave...
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #33 on: November 27, 2011, 06:28:48 pm »
I made a little progress during the holiday break. 

I basically took it from this.



To this.



Before



After



I still have to figure out how to to put all this back in the headlight bucket.   :o




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Offline esquire

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #34 on: November 27, 2011, 06:39:05 pm »
Quote from: fmctm1sw on November 18, 2011, 06:10:16 pm
Quote from: F16Viper68 on November 15, 2011, 08:14:20 pm
I started looking at the wiring and noticed the wiring had been crushed by the primary cover.  I'll see if it's repairable later in the week.  I can't believe this didn't kill the R/R but it checks good by the DVM.   



Dave...

Yeah, I think you'll be ok.  I've done two oil pressure switch wires that were crimped like that.  I usually splice and solder them.  Then slide some heat shrink over the connections.  Heat shrink has to go on first obviously...

That must be a common issue. My oil light is still staying off.

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1973 CB350F

Offline cb650

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #35 on: November 28, 2011, 03:04:24 am »
For my next master cyl going to use on off a 84 nitehawk.    Dual disk also but had dual piston.    The whole M/C is cast so no more plastic.
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #36 on: November 28, 2011, 12:45:33 pm »
Quote from: cb650 on November 28, 2011, 03:04:24 am
For my next master cyl going to use on off a 84 nitehawk.    Dual disk also but had dual piston.    The whole M/C is cast so no more plastic.

You know I just remembered I have a master cylinder for my V-Strom that might work.  I upgraded the calipers on the Wee from two piston to four and post upgrade I found it necessary to ugprade the master cylinder.  Hmmmmm.

Dave....
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #37 on: November 28, 2011, 03:49:43 pm »
Well the old V-Strom master cylinder mates up perfectly including the mirror.  I wonder if it will be too touchy for the single piston calipers?

Dave...
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Offline CBJoe

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #38 on: November 28, 2011, 03:56:19 pm »
Looks good... front end cleaned up real well.

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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #39 on: November 28, 2011, 04:02:22 pm »
Quote from: CBJoe on November 28, 2011, 03:56:19 pm
Looks good... front end cleaned up real well.

Many thanks.  I'm amazed how well that part of the bike looks considering what I rolled into the garage a few months ago.  I need to get the headlight bucket reinstalled and then start rebuilding the calipers.

Dave...
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #40 on: December 03, 2011, 03:12:23 pm »
Today I put the headlight assembly back together.   >:(  Man, getting all those connectors back in there and making enough room for the headlight itself...  I'll admit a tool or two went flying. 



I started to rebuild the calipers when I ran across this.  Son of a....  So anyone know where I can buy pistons cheap? 



Dave...
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Offline onepieceatatime

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #41 on: December 03, 2011, 04:00:52 pm »
I can check in the garage and see what I have for calipers. I know I only have the left one, but I am not sure if I have 1 spare or 2. Also not sure about condition. I will try to get them out and check tomorrow.
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #42 on: December 04, 2011, 11:12:49 am »
Quote from: onepieceatatime on December 03, 2011, 04:00:52 pm
I can check in the garage and see what I have for calipers. I know I only have the left one, but I am not sure if I have 1 spare or 2. Also not sure about condition. I will try to get them out and check tomorrow.

Thanks but I ordered new pistons from David Silvers in the UK (cheapest price I could find).  I have two left and two right calipers but they all need new pistons.  I have seals and pads now I just need to wait for my pistons.

Dave...
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Offline wanackg

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #43 on: December 10, 2011, 05:09:56 pm »
nice work so far!
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #44 on: December 10, 2011, 06:33:05 pm »
Quote from: wanackg on December 10, 2011, 05:09:56 pm
nice work so far!

Thank you!  I've been out of town on business so I haven't made too much progress.  But I've been waiting for parts so I wasn't going ot make too much progress either way. 

Dave...
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #45 on: December 10, 2011, 06:38:26 pm »
Well my new brake pistons from David Silver's (UK) arrived while I was away on business.  So today I started disassembling, cleaning, and painting the calipers.  I hope to have both sets primed before I get on a plane tomorrow evening. 









Dave...
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #46 on: December 17, 2011, 02:29:44 pm »
Well after a lot of cleaning, more cleaning, and painting the calipers are done and installed.

I started with this.





In progress









Finished project











Sorry for all the pics but this was a long process.

Dave...
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Offline CBJoe

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #47 on: December 17, 2011, 03:54:08 pm »
Very nice!  That front end looks like new.

Your making me feel ashamed that my 650's are in the garage in pieces  ::)

Cheers, Joe
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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #48 on: December 17, 2011, 05:19:12 pm »
Needs spoked wheels!
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Offline F16Viper68

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Re: 1981 CB650C aka "The Titanic's Anchor"
« Reply #49 on: December 17, 2011, 07:10:15 pm »
Quote from: redgalvin on December 17, 2011, 05:19:12 pm
Needs spoked wheels!

First I need to get this thing road worthy.  :)

Dave...
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