Author Topic: bottom case covers of front suspension  (Read 2070 times)

0 Members and 1 Guest are viewing this topic.



Offline Jim

  • Enthusiast
  • **
  • Posts: 141
bottom case covers of front suspension
« on: January 30, 2009, 06:51:23 PM »
I'm trying to remove oils seals ('72 350four). How is the bottom case cover removed? I can find nothing specific on the topic. Please help
J



Offline tbpmusic

  • Hot Shot
  • ***
  • Posts: 651
Re: bottom case covers of front suspension
« Reply #1 on: January 30, 2009, 07:14:56 PM »
There's an allen bolt in the bottom of the front fork outer.
Remove it and the tube should pull right out.
The manual has a pretty clear explanation.....
« Last Edit: January 30, 2009, 07:17:34 PM by tbpmusic »
"If you can't fix it with a hammer, then it's an electrical problem"

Bill Lane
 '71 CB450 Mutant/ '75 CB200/ '81 CM200/ '71 C70M/ '72 CL350
http://home.comcast.net/~tbpmusic3/450site.htm



Offline Jim

  • Enthusiast
  • **
  • Posts: 141
Re: bottom case covers of front suspension
« Reply #2 on: January 31, 2009, 06:25:34 PM »
this is what i mean. I'm changing oil seals... i think this needs to be removed. What is the technique?




Offline scunny

  • Old Timer
  • ******
  • Posts: 3,464
  • don't call me expert
Re: bottom case covers of front suspension
« Reply #3 on: January 31, 2009, 07:24:33 PM »
is that an after market extension of some kind Jim ?
it looks chrome plated or stainless
past-cb100,ts250,cb500,cb500,gs1000,gs650g.phillips traveller
present-CB 650 retro
           XL250S riverbed rocket
           TS250
           TS185
           XL125S
           MT50 (white)
           MT50 (red)
           KN250/XS400 project
           mt50
           pedal(pub bike) leaks oil
my gallery http://gallery.sohc4.net/members/personal/scunny



Offline Jim

  • Enthusiast
  • **
  • Posts: 141
Re: bottom case covers of front suspension
« Reply #4 on: January 31, 2009, 07:28:26 PM »
No its original... 1972 350four.
The oil seal is in there at the intersection of the alum and chrome.
The manual just says remove. To replace seal... No explaination how. - doesn't look simple...must be a trick or technique.
Can't seperate them can't change seal
J



Offline scunny

  • Old Timer
  • ******
  • Posts: 3,464
  • don't call me expert
Re: bottom case covers of front suspension
« Reply #5 on: January 31, 2009, 07:35:08 PM »
sorry, just looked at a photo of a 350 and see it's a cover. can you turn it, might just be held by an O ring and pop off.
hopefully one of the guys with a 350 such as Matt will be able to help you
past-cb100,ts250,cb500,cb500,gs1000,gs650g.phillips traveller
present-CB 650 retro
           XL250S riverbed rocket
           TS250
           TS185
           XL125S
           MT50 (white)
           MT50 (red)
           KN250/XS400 project
           mt50
           pedal(pub bike) leaks oil
my gallery http://gallery.sohc4.net/members/personal/scunny



Offline Jim

  • Enthusiast
  • **
  • Posts: 141
Re: bottom case covers of front suspension
« Reply #6 on: January 31, 2009, 07:39:01 PM »
I may have to PM Matt... This one has me stumpped. I've tried turning it and took out the c rng inside. There looks to be a slot to pry the thing off but it doesn't move for me.
??.

 



Offline tbpmusic

  • Hot Shot
  • ***
  • Posts: 651
Re: bottom case covers of front suspension
« Reply #7 on: January 31, 2009, 08:34:09 PM »
I see what you mean now -
It's just stuck, that's all.
Keep at it, eventually you'll get it off.
Very similar to what's on a CB200 twin - thought I'd never get them off.
It took a bit of tapping with a screwdriver and hammer, after a good soak with PB Blaster.
"If you can't fix it with a hammer, then it's an electrical problem"

Bill Lane
 '71 CB450 Mutant/ '75 CB200/ '81 CM200/ '71 C70M/ '72 CL350
http://home.comcast.net/~tbpmusic3/450site.htm



Offline Jim

  • Enthusiast
  • **
  • Posts: 141
Re: bottom case covers of front suspension
« Reply #8 on: January 31, 2009, 08:37:12 PM »
Hate to f#*k it up
J



Offline tbpmusic

  • Hot Shot
  • ***
  • Posts: 651
Re: bottom case covers of front suspension
« Reply #9 on: February 01, 2009, 10:11:14 AM »
Hate to f#*k it up
J


Then don't.......
"If you can't fix it with a hammer, then it's an electrical problem"

Bill Lane
 '71 CB450 Mutant/ '75 CB200/ '81 CM200/ '71 C70M/ '72 CL350
http://home.comcast.net/~tbpmusic3/450site.htm



Offline Jim

  • Enthusiast
  • **
  • Posts: 141
Re: bottom case covers of front suspension
« Reply #10 on: February 01, 2009, 10:32:39 AM »
Have you done this?
Does this "turn" or is that slot there to pry it up?
Do you know?
J



Offline tbpmusic

  • Hot Shot
  • ***
  • Posts: 651
Re: bottom case covers of front suspension
« Reply #11 on: February 01, 2009, 11:18:31 AM »
Jim -

Like I said, they look identical to a CB200, and I have done them (just a few months ago).
Honestly it's been so long since I did a 350-four that I don't remember - but there's no reason to suspect they're any different or special, honda pretty much stuck to the same stuff in that era.
To install, they slide down, and then a twist to lock them in place.
They come off just the opposite.
They're probably just corroded a bit and need some "convincing".
It's not unusual when you have two differnt metals in contact, then throw in 35+ years to the mix.
You might try a "band" or strap wrench for that initial twist- that won't mess them up.
"If you can't fix it with a hammer, then it's an electrical problem"

Bill Lane
 '71 CB450 Mutant/ '75 CB200/ '81 CM200/ '71 C70M/ '72 CL350
http://home.comcast.net/~tbpmusic3/450site.htm



Offline Jim

  • Enthusiast
  • **
  • Posts: 141
Re: bottom case covers of front suspension
« Reply #12 on: February 01, 2009, 11:28:40 AM »
That's more or less what I needed tpo lknow...
That they "turn" off not "pry"
I'll keep trying
J



Offline mystic_1

  • Really Old Timer ...
  • ******
  • Posts: 5,059
  • 1970 CB750K
Re: bottom case covers of front suspension
« Reply #13 on: February 01, 2009, 11:36:11 AM »
Well, it's turn, then pry.

Stretching my memory I think CB350 twins may have had the same arrangement?  It was a slight turn to unlock a tab on the inside of the cover, that fits into an "L" shaped groove in the fork.  Sorta like a bayonet style light bulb.

mystic_1
"When you are wrestling for possession of a sword, the man with the handle always wins. "  - Neal Stephenson, Snow Crash

My build thread:  http://forums.sohc4.net/index.php?topic=68952.0




Offline Jim

  • Enthusiast
  • **
  • Posts: 141
Re: bottom case covers of front suspension
« Reply #14 on: February 01, 2009, 11:48:35 AM »
I became concerned when it wouldn't budge and do not wantto harm the finish. Knowing it locks wyth a turn helps
Ill try harder....
Thanks
J



Offline tbpmusic

  • Hot Shot
  • ***
  • Posts: 651
Re: bottom case covers of front suspension
« Reply #15 on: February 01, 2009, 06:23:36 PM »
Well, it's turn, then pry.

Stretching my memory I think CB350 twins may have had the same arrangement?  It was a slight turn to unlock a tab on the inside of the cover, that fits into an "L" shaped groove in the fork.  Sorta like a bayonet style light bulb.

mystic_1

Yeah, a lot of models used that arrangement, including the 350's - not unique at all.
They will come off, you may have to get tough with them, as they've been on there a loooong time.
"If you can't fix it with a hammer, then it's an electrical problem"

Bill Lane
 '71 CB450 Mutant/ '75 CB200/ '81 CM200/ '71 C70M/ '72 CL350
http://home.comcast.net/~tbpmusic3/450site.htm



Offline Jim

  • Enthusiast
  • **
  • Posts: 141
Re: bottom case covers of front suspension
« Reply #16 on: February 01, 2009, 07:31:58 PM »
I got them off... Thanks guys.
Its a "friction fit" no turn needed just gentle persuasion up under that tab with a blabe screwdrive and gentle taps with hammer. Took lots of PB and time but came off. 
thanks for the help guys... You convinced me to stay at it. 
As usual... This forum keeps my resto on the rails.
J

 

Honda