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Author Topic: CJ360 Build (my first)  (Read 3805 times)

Offline ZenMoto

  • Posts: 33
Re: CJ360 Build (my first)
« Reply #40 on: Jan 23, 2018, 22:10:01 »
Got to the media blaster's this afternoon to see how bad it was.

...not too shabby. Overall, I'm amazed the tank is as nice as it is, and utterly baffled why someone coated it so heavily with body filler.

Raw metal:



Of course, I felt I should give it a quick coat of sandable primer to prevent it from flash rusting.



Slight indentation on this side, but nothing dramatic:


This side is basically perfect:



And it's really hard to photograph, but there are a few, very small, dings in the top left region of the tank:






Offline crazypj

  • Posts: 12886
  • Split personality, I fake being smart
Re: CJ360 Build (my first)
« Reply #41 on: Jan 23, 2018, 22:38:00 »
That's in much better shape than I expected after seeing all the paint and primer you had to take off.

'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline crazypj

  • Posts: 12886
  • Split personality, I fake being smart
Re: CJ360 Build (my first)
« Reply #42 on: Jan 23, 2018, 22:39:45 »
I have this issue with my CB400f popped on a new Cam chain but the horseshoe is stuck.. she runs lovely but I will have to split the cases to sort this once it starts to stretch. I'll only do 500 - 1000 miles in a year so it will be ok for a bit I hope.

 Even then it's not a good idea as metal bits could be knocked off into oil
http://www.dotheton.com/forum/index.php?topic=11736.300
Scroll to post 343 to see what can happen
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline ZenMoto

  • Posts: 33
Re: CJ360 Build (my first)
« Reply #43 on: Jan 31, 2018, 00:25:20 »
Hey guys, I've made a little bit of progress since I last posted, but not nearly as much as I'd like.

I got the cases split finally:


The Cases did NOT want to come apart, perhaps something to do with all the RTV silicon that someone had smeared all around the edges of the case ...but nothing a wood drift couldn't help with.

Good news is most everything looks to be in great shape. The gear shift shaft being the exception. A loose chain, at some point, had done noticeable damage to the left side case and the shaft:



Enough burring that I needed to take a flat file (gently) to the shaft to pull it through the lower crank case without damaging the aluminum.



Not sure how readily available a "clean" one will be, but I'll take a look around (I'll also need the long bolt that runs through the engine, to which the foot pegs attach, as mine is really bent).

Another fun note was that when pulling the oil filter assembly apart, I found this spiral of something trapped in there ...looked like a perfect tiny spring ...except it's aluminum. Haven't seen anything with a noticable gouge in it though, so I'm not too worried about it.



Cheers.
« Last Edit: Jan 31, 2018, 00:40:35 by ZenMoto »


Offline advCo

  • DTT BOTM WINNER
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  • Posts: 2391
  • Nick Ol' Eye
    • adventur Studios
CJ360 Build (my first)
« Reply #45 on: Jan 31, 2018, 01:55:07 »
Yep. You can probably just run that gear shift shaft. as long as those gouges aren’t in contact with any oil seals you’ll be fine.

Could also weld the gouges up and file it down if you want it to look “fixed”


Sent from my iPhone using DO THE TON
« Last Edit: Jan 31, 2018, 02:01:21 by advCo »
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

Offline crazypj

  • Posts: 12886
  • Split personality, I fake being smart
Re: CJ360 Build (my first)
« Reply #46 on: Jan 31, 2018, 11:04:57 »
Easier to just use as is if it's smooth enough to fit trough seal without damaging seal.
 Fit a piece po plastic tube over shaft after re-assembly, I've used various materials but plumbing PEX seems to come in a diameter that works and prevents further contact if chain comes loose. I've seen 'tubes' fitted to gear-change shafts on a few MX bikes, mainly a Yamaha thing. Maybe I should post the tip on CB350 forums as race 350's are known to pressurise cases sometimes then push seal out of case when they get hot.
Brendon had seal 'pop out' on his CB378
A new 'soft' seal cured problem but in the interim I fitted thrust washer, pre-load spring and tube,.
 Outer cover holds everything in place
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline ZenMoto

  • Posts: 33
Re: CJ360 Build (my first)
« Reply #47 on: Feb 02, 2018, 03:37:11 »
Quick question for the hive mind ...what's the best way to remove the main bearing from the output shaft? That sucker is really on there! Thought about freezing the whole thing, then using a torch to heat the bearing, but don't want to damage the bearing (not sure that's a good idea).

Thoughts?

Offline advCo

  • DTT BOTM WINNER
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  • Posts: 2391
  • Nick Ol' Eye
    • adventur Studios
Re: CJ360 Build (my first)
« Reply #48 on: Feb 02, 2018, 12:09:48 »
Quick question for the hive mind ...what's the best way to remove the main bearing from the output shaft? That sucker is really on there! Thought about freezing the whole thing, then using a torch to heat the bearing, but don't want to damage the bearing (not sure that's a good idea).

Thoughts?

I'd say a 3 jaw puller could probably get it off without damaging anything else, if I'm thinking of the correct bearing.

Why are you removing the bearing? Unless you plan on replacing it or playing with the transmission, you should leave it all together.
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

Offline ZenMoto

  • Posts: 33
Re: CJ360 Build (my first)
« Reply #49 on: Feb 02, 2018, 14:11:49 »

Why are you removing the bearing? Unless you plan on replacing it or playing with the transmission, you should leave it all together.

Thanks. ...and because the entire transmission is going to get isotropic super-finished, and I can't leave the bearing on for that process. I'm sure it's 100% overkill, but I'm also super OCD.  lol