The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: tc80211 on May 13, 2014, 02:43:08 PM

Title: Another Brake question - Front brembo, brake pipe
Post by: tc80211 on May 13, 2014, 02:43:08 PM
So the brake line splitter for my bike 83 R65 is long gone as is the crudy brake line that was there... So a custom line from the master cylinder all the way to the top of the brake pipe is needed...

I know (from what i have read) the banjo fitting at the Master cylinder is 10mm X 1.00

What kind of fitting attaches to the top of that break pipe (#1 in attached picture)?
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: Barry on May 13, 2014, 03:42:03 PM
Quote
What kind of fitting attaches to the top of that break pipe (#1 in attached picture)?  


As far as I can remember it's a standard 10mm female fitting that you need so the hose would have a banjo on one end and a 10m x 1.00 female on the other.   You can get a hose that has 10mm x 1.00 on both ends with a screw in banjo fitting (which is what you seem to suggest above) or the type with the banjo crimped direct to the hose.

Should be nice and easy to bled without the splitter but what happened to the brake light switch ?
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: tc80211 on May 13, 2014, 07:30:06 PM
Thanks Barry... Going for a banjo bolt/hydraulic switch...
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: DerekM on May 13, 2014, 08:50:11 PM
If you wanted, I am doing the same conversion so I would be happy to provide my original block with switch.
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: tc80211 on May 13, 2014, 09:05:43 PM
Quote
If you wanted, I am doing the same conversion so I would be happy to provide my original block with switch.

I sincerely appreciate the offer but I am going full steam ahead for the single braided line. Found a few different hydraulically operated 10mm x 1.00 banjo bolt fittings...
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: DerekM on May 13, 2014, 09:44:10 PM
Great, please post up whatever you end up with for the banjo/switch. I'm a few steps behind you in getting my brakes in order.

If anyone else wants the block/switch, PM me.
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: Barry on May 14, 2014, 04:15:29 AM
Quote
... Going for a banjo bolt/hydraulic switch


Banjo bolt and switch in one - that's a very neat idea !

Makes good sense when replacing the existing hoses to have just one length of new braided hose. Must be cheaper too, even taking into account the cost of the banjo switch.

Title: Re: Another Brake question - Front brembo, brake pipe
Post by: tc80211 on May 14, 2014, 07:43:52 AM
A friend and fellow bike builder has recommended these guys:
http://www.anplumbing.com
Build your entire hose set with whatever style connectors in all stainless for a decent price.
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: steve hawkins on May 14, 2014, 07:48:28 AM
tc80211

That is what I did.
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: decorn33 on May 14, 2014, 09:13:25 AM
Do I remember a thread on this site not too long ago where one of our members had taken a used rotor, ground off the rivets holding the disc to the hub, and sent the hub somewhere to have a new rotor mounted?  I used our search screen this AM but didn't come up with it
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: Luca on May 14, 2014, 06:05:28 PM
I'm not sure if this has any bearing on the female hose end, but the female end of the lower brake hose takes a metric bubble flare
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: Barry on May 15, 2014, 02:53:46 AM
Quote
I'm not sure if this has any bearing on the female hose end, but the female end of the lower brake hose takes a metric bubble flare  

Yes. I wish there was a simple guide to the various brake fittings.  From what I can make out there are American fittings and then there are metric fittings in two types with European and Japanese having different tube flares and even though both are 10mm threads they can be 1.0mm pitch or 1.25mm pitch.

Main thing to remember with brake fittings is that the threads never provide the sealing function. It's always a conical seat in the fitting that matches the bubble flare or the flat surfaces of a banjo fitting with copper washers. Only time PTFE tape should ever come near brake fittings is to stop bleed nipple threads sucking in air and even then the bleed nipple seals on a conical seat not the threads.
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: Matt Chapter on May 15, 2014, 10:53:01 AM
Quote
Do I remember a thread on this site not too long ago where one of our members had taken a used rotor, ground off the rivets holding the disc to the hub, and sent the hub somewhere to have a new rotor mounted?  I used our search screen this AM but didn't come up with it

If you're talking brake rotor, then yes, you remember correctly. Except that they do the grinding and whatnot, too. Spiegler (http://www.spieglerusa.com/brakes/bmw-rotor-conversions.html) is the operation, and this is the result:

(https://farm8.staticflickr.com/7067/6959592057_7f7406d502_n.jpg) (https://flic.kr/p/bAZJfv)

(https://farm8.staticflickr.com/7058/6813479614_f1a959407f_n.jpg) (https://flic.kr/p/bo5S7s)
Title: Re: Another Brake question - Front brembo, brake pipe
Post by: Luca on May 15, 2014, 08:09:26 PM
I got new lower hoses for my bike from NAPA.  I took one in and they measured the length, checked the fittings, and found something in the catalog.  They're a little longer than they need to be and have some metal fittings midway up the hose... but at $18 a piece it fit my budget.