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Author Topic: Down under, an idiot and a 400F  (Read 508836 times)

Offline Ianmallee

  • Posts: 44
Down under, an idiot and a 400F
« Reply #90 on: Dec 12, 2011, 05:34:48 »
Sorry no pics. It's a green one. Check their latest catalogue. If you missed the sale it's only $90 anyways so for a new no name product does the job

Offline beachcomber

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  • Posts: 4141
  • TJ - Beachcomber
Re: Down under, an idiot and a 400F
« Reply #91 on: Dec 12, 2011, 05:49:15 »
This is the stock system:
 

 
Specific to the 400f ...... and I think they are the most beautiful part of the bike.

Re: the headers - the pic shown is FACTORY STOCK. The only new bike I ever bought was the twin of the one in the pic. And as stated, one of the iconic parts of the bike.

To Remove the collars......................the usual goodly spray of WD40 / similar then.
tap the collars AWAY from the flanges -ie down the pipe about 2".

There is a FLAT SPLIT RETAINING RING WHICH SITS ON THE FLANGE. This then sits inside the recess in the finned collar and holds everything in place.

If you've managed to beat the collar off, then the split ring is a gonner !!!!!

I'll get a picture posted before COP today.

Here it is ...............



« Last Edit: Dec 12, 2011, 07:04:03 by beachcomber »
"if at first you don't succeed, you've already been a failure once"

" we're not going back to the sixties - we never left "

"yep, nostalgia ain't what it used to be"

"I used to be indecisive - now I'm not so sure"

Offline neevo

  • Posts: 2236
    • The blog of my custom CB400F build
Down under, an idiot and a 400F
« Reply #92 on: Dec 12, 2011, 07:03:08 »
Neevo - David Silvers in the UK sell an aftermarket master cylinder, complete with lever, that looks very similar to the OEM version, for about the same price as a rebuild kit.  For your consideration.

Damn, that's annoying! That is veeeeery cheap for a whole assembly. Thrown a spanner in the works with that one. Thanks for the tip.


See the condensed version of my full build on my blog!

Offline neevo

  • Posts: 2236
    • The blog of my custom CB400F build
Down under, an idiot and a 400F
« Reply #93 on: Dec 12, 2011, 07:08:48 »
Beachcomber I have taken those bits out already. The issue appears to be a solid collar on the end of the pipes, not sure if it's fixed on there or if I can hit it off. Will see how I go, it's got me scratching my head though.

I thought it may have been a removal part, something like this:

http://www.davidsilverspares.co.uk/CB400F-SUPER-SPORT-1976-USA/part_163014/


See the condensed version of my full build on my blog!

Offline beachcomber

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  • TJ - Beachcomber
Re: Down under, an idiot and a 400F
« Reply #94 on: Dec 12, 2011, 07:25:20 »
Neevo, that's DEFINITELY how they come off.

I took the pipes off my 400F some years ago to give them a thorough clean up.Mine had only done 6,500 miles and was as new [ 20 years old ! ] and the collars came off easilly.
It's probably years of gunge that's stopping the collars from slipping off. The collar is NOT put on and then flange welded on the tube. If that were the case, there'd be no need for the split rings ???

Maybe a good root around with a wire brush on your drill ?
"if at first you don't succeed, you've already been a failure once"

" we're not going back to the sixties - we never left "

"yep, nostalgia ain't what it used to be"

"I used to be indecisive - now I'm not so sure"

Offline Kwality

  • Posts: 54
Re: Down under, an idiot and a 400F
« Reply #95 on: Dec 12, 2011, 07:34:40 »
@Beachcomber - but what Neevo is dealing with isn't factory stock.  As you say - with the stock headers, the cast collars just slip back down; the split collars fall out and the header can be removed.  Then the cast collars will just slip off of the header.  Easy. 

What Neevo is dealing with isn't a stock setup - see back a page or two.  The picture of the stock setup was posted for comparison.

Offline beachcomber

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  • Posts: 4141
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Re: Down under, an idiot and a 400F
« Reply #96 on: Dec 12, 2011, 07:43:29 »
@Beachcomber - but what Neevo is dealing with isn't factory stock.  As you say - with the stock headers, the cast collars just slip back down; the split collars fall out and the header can be removed.  Then the cast collars will just slip off of the header.  Easy. 

What Neevo is dealing with isn't a stock setup - see back a page or two.  The picture of the stock setup was posted for comparison.

Ahhhh yes. RTFM....................!!!!!
"if at first you don't succeed, you've already been a failure once"

" we're not going back to the sixties - we never left "

"yep, nostalgia ain't what it used to be"

"I used to be indecisive - now I'm not so sure"

Offline neevo

  • Posts: 2236
    • The blog of my custom CB400F build
Down under, an idiot and a 400F
« Reply #97 on: Dec 13, 2011, 23:12:24 »
Used one of the templates on here to mark up my rotor for drilling. Got some A4 Avery stickers to print on so I could stick directly onto the rotor.

Major pain getting the size exactly right and had to overlay 2 but I think it's not too bad. Will be punching drilling guides then pilot holes followed by 2 size holes. Won't be chamfering but keen to know how people dress the disc afterwards. Here's the pics:







See the condensed version of my full build on my blog!

Offline bikeboy

  • Posts: 1165
    • a cb900 tragic
Re: Down under, an idiot and a 400F
« Reply #98 on: Dec 13, 2011, 23:20:24 »
Used one of the templates on here to mark up my rotor for drilling. Got some A4 Avery stickers to print on so I could stick directly onto the rotor.

Wow. that's a lot of holes. and these disks are THICK. You're in for a bit of a marathon my friend. For shits and giggles, you should weigh the rotor before and after with some reasonably accurate (gram) scales. I chamfered my holes to make it a bit easier on the pads, but they've now worn down past that anyway, so not sure if it did/does any good. New disks are punched I believe, and have the sharper edges anyway.

Have fun!

cheers
ian

Offline neevo

  • Posts: 2236
    • The blog of my custom CB400F build
Down under, an idiot and a 400F
« Reply #99 on: Dec 13, 2011, 23:24:20 »
Wow. that's a lot of holes. and these disks are THICK. You're in for a bit of a marathon my friend.

Have fun!

Fark it ;)

Doing it for aesthetics anyway so might as well have it pretty, even if it takes effin ages :)


See the condensed version of my full build on my blog!