Re: Brake help...

[Richard Clough]

Heavy pedal indicates too large a fluid displacement for the calipers being used.  Options are: Increase the fluid demand of the callipers (fit 4 spots as you suggest); decrease the dia. of the master cyl.; fit a power booster.    ----- Original Message ----- From: Jimmy To: membersozdat@datascribe.com.au Sent: Tuesday, July 04, 2006 11:17 PM Subject: Re: Brake help... hey guys   sorry to hijack but I have a one inch master cyclinder which is the same in appearance to the 7/8 etc However it is really heavy in comparison.   Any idea what this is from the whether i should use this with 4 spots on the front or go something smaller?   cheers Adam Jackson <[EMAIL PROTECTED]> wrote: Richard & Terry, Thanks very much for the info. Before I run out and grab a new master cylinder. I want to be sure I actually need one :) Now i'll have a look tomorrow Terry and see what the stamp says (where abouts is the stamp located as it's going to be pretty difficult to locate next to the sr). Also with the incorrect master cylinder would the brakes be next to useless? They were spongy as I stated but they also weren't very powerful at all... I could stop but I didn't have much faith in them... cheers, Adam ----- Original Message ----- From: "Terry Rudd" <[EMAIL PROTECTED]> To: Sent: Tuesday, July 04, 2006 7:32 PM Subject: RE: Brake help... > Adam, > > No such thing as a stupid question when it comes to car stuff (;- > > The size relates to the cylinder bore diameter - most cylinders will have > it > stamped on them and usually still in inches. The only Datto one I can > think > of that doesn't have the size on it is the 3/4" Aussie 180B Girlock > cylinder > (usually rusty cast iron piece of crap) and these are a total waste of > time. > Try to use a Japanese cylinder, Tokico (my pref as they have excellent > internal proportioning when used with 4 discs), Nabco (good), or Sankyo > (average but OK). > > Regards, > Terry > > -----Original Message----- > From: membersozdat_owner@datascribe.com.au > [mailto:[EMAIL PROTECTED] On Behalf Of Adam Jackson > Sent: Monday, 3 July 2006 11:36 PM > To: membersozdat@datascribe.com.au > Subject: Re: Brake help... > > > Thank Chris and Terry. > > This will be a stupid question, but where do I measure to make sure i've > got > > the right sized master cylinder? > > cheers, > Adam > > ----- Original Message ----- > From: "Terry Rudd" <[EMAIL PROTECTED]> > To: > Sent: Monday, July 03, 2006 6:57 PM > Subject: RE: Brake help... > > >> Yep, Chris is on the money with this one. >> >> You might get away with a 13/16" off a Sunny, but 7/8" from 240K or >> Skyline >> would be about right for that combo. 3/4" will be way too soft and >> usually >> too much travel no matter what you do in the way of adjustments. >> >> Regards, >> Terry >> >> -----Original Message----- >> From: membersozdat_owner@datascribe.com.au >> [mailto:[EMAIL PROTECTED] On Behalf Of Chris King >> Sent: Monday, 3 July 2006 4:01 PM >> To: membersozdat@datascribe.com.au >> Subject: Re: Brake help... >> >> >> what size is the 180b master cylinder, might be too small for the big >> front >> brake setup? >> You should probabally be using a 7/8 mastercylinder. >> >> Also did you bleed the mastercylinder itself? >> >> Chris >> ----- Original Message ----- >> From: "Adam Jackson" <[EMAIL PROTECTED]> >> To: >> Sent: Monday, July 03, 2006 3:23 PM >> Subject: Brake help... >> >> >>> Hi Guys, >>> >>> I took the little datto for a test drive yesterday ( video here >>> http://www.sr20transplants.com/index.php/topic,10.0.html ) >>> >>> Anyways, the brakes were very very soft. I've checked all the lines >>> and there doesn't appear tobe any leaks. I bled them and couldn't >>> find any pockets of air at all. >>> >>> My setup >>> Front >>> VL Turbo / Verada discs >>> >>> Rear >>> R31 Skyline >>> >>> 180B mastercylinder and booster >>> >>> The vacuum line from the manifold to the booster seems fine. I was >>> also thinking that perhaps i've hooked up the VL Turbo calipers >>> incorrectly? From memory they only work if they're fitted on the >>> correct sides. Does anyone have pics of their setup? >>> >>> cheers, >>> Adam >>> >>> >>> >>> -- >>> No virus found in this incoming message. >>> Checked by AVG Free Edition. >>> Version: 7.1.394 / Virus Database: 268.9.8/380 - Release Date: >>> 30/06/2006 >>> >>> >>> >>> -- >>> No virus found in this outgoing message. >>> Checked by AVG Free Edition. >>> Version: 7.1.394 / Virus Database: 268.9.8/380 - Release Date: >>> 30/06/2006 >>> >> >> >> >> >> -- >> No virus found in this incoming message. >> Checked by AVG Free Edition. >> Version: 7.1.394 / Virus Database: 268.9.8/380 - Release Date: 30/06/2006 >> >> >> >> -- >> No virus found in this outgoing message. >> Checked by AVG Free Edition. >> Version: 7.1.394 / Virus Database: 268.9.8/380 - Release Date: 30/06/2006 >> >> >> >> >> >> >> >> -- >> No virus found in this incoming message. >> Checked by AVG Free Edition. >> Version: 7.1.394 / Virus Database: 268.9.8/380 - Release Date: 30/06/2006 >> >> >> >> -- >> No virus found in this outgoing message. >> Checked by AVG Free Edition. >> Version: 7.1.394 / Virus Database: 268.9.8/380 - Release Date: 30/06/2006 >> >> > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.394 / Virus Database: 268.9.8/380 - Release Date: 30/06/2006 > > --membersozdat------------------------------------------------------- > OZDAT Mailing List Please Note:- > Send (un)subscribe requests to [EMAIL PROTECTED] Send > submissions to membersozdat@datascribe.com.au No unauthorised > redistribution of this email http://www.ozdat.com/ozdatonline/index.htm > http://www.ozdat.com/ozdatonline/listindex.html > http://www.mail-archive.com/membersozdat@datascribe.com.au/ > --------------------------------------------------------------------- > > > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.1.394 / Virus Database: 268.9.8/380 - Release Date: 30/06/2006 > > > > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.394 / Virus Database: 268.9.8/381 - Release Date: 3/07/2006 > > > > -- > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.1.394 / Virus Database: 268.9.8/381 - Release Date: 3/07/2006 > > -- No virus found in this incoming message. 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