vacuum brake booster

[John Mills]

I believe there are 3 different units - Miles has described these in the past. I have a few boxes full of these - plenty around, but I am sure all in need of a rebuild.

[Justin]

rebend the blocks how?
i am hoping to go pick up my first honda 600 tomorrow
very excited!

--- In
anzhonda600owners@yahoogroups.com
, jbmkwaj@... wrote:
> No fancy blocks necessary, just rebend the lines a small amount!!!
> -----Original Message-----
> From: TOM THIES
> To: anzhonda600owners Sent: Sat, May 19, 2012 9:35 pm
> Subject: Re: [anzhonda600owners] vacuum brake booster
> Justin. I have heard that some people have made a block to replace the booster, but I don�'t know how to do it. I am sure someone will ring in with a way to do it. It just bypasses the booster.
> Tom
> ----- Original Message -----
> From: Justin
> To:
anzhonda600owners@yahoogroups.com
> Sent: Saturday, May 19, 2012 9:24 PM
> Subject: [anzhonda600owners] vacuum brake booster
> can the brakes still operate without the brake booster? curious because the one i am looking at had it stolen off it years ago but hasn't been ran since

[Random Name]

Yes it works just fine. I've never had a problem stopping without mine.
 Kurt

On May 19, 2012, at 9:24 PM, "Justin" wrote:
can the brakes still operate without the brake booster? curious because the one i am looking at had it stolen off it years ago but hasn't been ran since =

[friend]

�
    Honda made three different power boosters for the 600's, the booster for the coupe is different in that it has one inlet and to outlets on the booster master slave cylinder.  The sedan booster can be replaced with a Sedan rear brake line hose.  And like has already been said there isn't much difference.
    If having a working booster on your restoration is a must have; then there are key issues that you will need to deal with.
The piston shaft will be warn and a warn shaft will have copper showing through the chrome plating meaning it will need to be rechormed.
The puppet valve has a very small piston and seal, both of which are hard to come by.  Besides all of the seals and rechroming the piston shaft, the cylinders themselves have corroded bores which will need to be resleeved in brass.  If all of these issues are not a deterrent then look to see if  the vacuum diaphragm (the parts manual referrers to it as the "Booster Plate") is in good condition, still attached to the plate and will seal to the base.  All of which is necessary to complete the rebuild.
You can replumb the system and it will work, and there are brake line manufacturers that have the correct size and thread pitch for the flare nuts:  See Miles input below from a while back...
Subject:
[2cylinderhondas] Re: 600 brake lines threads
Brake Lines & Fittings Defined:
Wheel cylinders (rears) on the USA sold Honda 600 Sedan & Coupe:

The

Hard lines and flex lines have 10 x 1.25 thread pitch.

The

Bleeders are 8 x 1.25 thread pitch

The

Calipers are 10 x 1.25 thread pitch on the Banjo fittings

The

Bleeders are 10 x 1.0 thread pitch
Brake Master cylinder hard lines are 10 x 1.25mm
Bleeders are 8 x 1.25
Brake Booster in & out 10 x 1.25 (early sedan bendix boosters differ)
Brake booster low pressure switches 1/8 BSP not NPT thread pitch
Civic & most other later Honda's flare nuts are 10 x 1.0mm thread
pitch and unless you use Civic wheel cylinder forcing the flare nuts

in is not recommended.
You

can cut the Honda 600 or S600/S800 flare nuts off the steel
brake lines then install them onto your new 3/16" steel lines.
Finding the flare nuts in the Honda 600 pitch is difficult but I
hear someone in Japan made new ones for the S600 people.

I

bought a Double Flaring tool many years ago from Sears and
recently used it to make hard lines for my Honda motorcycle using
some re-zinc flare nuts and new 3/16" line.

Miles

Some places to go to for brake assistance:
http://www.brakecylinder.com/
http://www.classictube.com/
http://www.whitepost.com/brakeform.html
http://www.inlinetube.com/
To name a few.
Bill

> -----Original Message-----
> From:
> anzhonda600owners@yahoogroups.com
> [mailto:anzhonda600owners@yahoogroups.com]
> On Behalf Of
> jbmkwaj@...
> Sent:
> Saturday, May 19, 2012 9:51
> PM
> To:
> anzhonda600owners@yahoogroups.com
> Subject:
> Re:
> [anzhonda600owners] vacuum brake booster
> I believe there are 3 different units -
> Miles has described these in the past. I have a few boxes full of these - > plenty around, but I am sure all in need of a rebuild.
> -----Original
> Message-----
> From: Eric Geiger
> To:
>
>
> Sent: Sat, May 19, 2012 9:47
> pm
> Subject: Re: [anzhonda600owners] vacuum brake booster
> he doesn't have any brake booster parts on his website but like i said i > believe there are a few on ebay for cheap.
> Eric J. Geiger
> PRG
> Nocturne
> XXX-XXX-XXXX
>  phone
> XXX-XXX-XXXX
>  fax
> XXX-XXX-XXXX
>  mobile
> egeiger@...
> www.prgnocturne.com
> On May 19, 2012, at 11:34 PM, jbmkwaj@...
>   jbmkwaj@...
> wrote:
> > Yes, many of our cars are run
> > without the booster. The owners manual shows a brand new car, fulled loaded, > > at 70 MPH, will stop 10 feet shorter with a fully functioning booster. not a > > big difference IMO. I think it was more of a gimmick for the American > > public.
> > -----Original Message-----
> > From: Justin
> > > justinazevedo47@...
> > To:
> > anzhonda600owners > anzhonda600owners@yahoogroups.com
> > Sent:
> > Sat, May 19, 2012 9:24 pm
> > Subject: [anzhonda600owners] vacuum brake
> > booster
> > can the brakes still operate without the brake booster? curious because > > the one i am looking at had it stolen off it years ago but hasn't been ran > > since

[Eric Geiger]

is there a difference in the piston shaft assembly for each different brake booster, or are they all the same?  asking cuz i just bought a NOS one off ebay since it seemed like it was too rare to pass up.
Eric J. Geiger
On May 20, 2012, at 1:51 AM, �
>     Honda made three different power boosters for the 600's, the booster for the coupe is different in that it has one inlet and to outlets on the booster master slave cylinder.
> The sedan booster can be replaced with a Sedan rear brake line hose.  And like has already been said there isn't much difference.
>     If having a working booster on your restoration is a must have; then there are key issues that you will need to deal with.  The piston shaft will be warn and a warn shaft > will have copper showing through the chrome plating meaning it will need to be rechormed.  The puppet valve has a very small piston and seal, both of which are hard to come by.  Besides all of the seals and rechroming the piston shaft, the cylinders themselves > have corroded bores which will need to be resleeved in brass.  If all of these issues are not a deterrent then look to see if  the vacuum diaphragm (the parts manual referrers to it as the "Booster Plate") is in good condition, still attached to the plate > and will seal to the base.  All of which is necessary to complete the rebuild.
> You can replumb the system and it will work, and there are brake line manufacturers that have the correct size and thread pitch for the flare nuts:  See Miles input below from a while back...
> Subject: [2cylinderhondas] Re: 600 brake lines threads
> > Brake Lines & Fittings Defined:
> > Wheel cylinders (rears) on the USA sold Honda 600 Sedan & Coupe:
> > The Hard lines and flex lines have 10 x 1.25 thread pitch.
> > The Bleeders are 8 x 1.25 thread pitch
> > The Calipers are 10 x 1.25 thread pitch on the Banjo fittings
> > The Bleeders are 10 x 1.0 thread pitch
> > Brake Master cylinder hard lines are 10 x 1.25mm
> > Bleeders are 8 x 1.25
> > Brake Booster in & out 10 x 1.25 (early sedan bendix boosters differ)
> > Brake booster low pressure switches 1/8 BSP not NPT thread pitch
> > Civic & most other later Honda's flare nuts are 10 x 1.0mm thread
> > pitch and unless you use Civic wheel cylinder forcing the flare nuts
> > in is not recommended.
> > You can cut the Honda 600 or S600/S800 flare nuts off the steel
> > brake lines then install them onto your new 3/16" steel lines.
> > Finding the flare nuts in the Honda 600 pitch is difficult but I
> > hear someone in Japan made new ones for the S600 people.
> > I bought a Double Flaring tool many years ago from Sears and
> > recently used it to make hard lines for my Honda motorcycle using
> > some re-zinc flare nuts and new 3/16" line.
> > Miles
> Some places to go to for brake assistance:
> http://www.brakecylinder.com/
> http://www.classictube.com/
> http://www.whitepost.com/brakeform.html
> http://www.inlinetube.com/
> To name a few.
> Bill
> > -----Original Message-----
> > From:
> > anzhonda600owners@yahoogroups.com
> > [mailto:anzhonda600owners@yahoogroups.com]
> > On Behalf Of
> > jbmkwaj@...
> > Sent:
> > Saturday, May 19, 2012 9:51 PM
> > To:
> > anzhonda600owners@yahoogroups.com
> > Subject:
> > Re: [anzhonda600owners] vacuum brake booster
> > I believe there are 3 different units - Miles has described these in the past. I have a few boxes full of these - plenty around, but I am sure all in need of a rebuild.
> > -----Original Message-----
> > From: Eric Geiger > egeiger@...
> > To: > anzhonda600owners@yahoogroups.com
> > > > anzhonda600owners@yahoogroups.com
> > Sent: Sat, May 19, 2012 9:47 pm
> > Subject: Re: [anzhonda600owners] vacuum brake booster
> > he doesn't have any brake booster parts on his website but like i said i believe there are a few on ebay for cheap.
> > Eric J. Geiger
> > PRG Nocturne
> > XXX-XXX-XXXX
> >  phone
> > XXX-XXX-XXXX
> >  fax
> > XXX-XXX-XXXX
> >  mobile
> > egeiger@...
> > www.prgnocturne.com
> > On May 19, 2012, at 11:34 PM, > jbmkwaj@...
> >   > jbmkwaj@...
> > > wrote:
> > > Yes, many of our cars are run without the booster. The owners manual shows a brand new car, fulled loaded, at 70 MPH, will stop 10 feet shorter with a fully functioning booster. not a big difference IMO. I think > > > it was more of a gimmick for the American public.
> > > -----Original Message-----
> > > From: Justin > > justinazevedo47@...
> > > To: anzhonda600owners > > anzhonda600owners@yahoogroups.com
> > > Sent: Sat, May 19, 2012 9:24 pm
> > > Subject: [anzhonda600owners] vacuum brake booster
> > > can the brakes still operate without the brake booster? curious because the one i am looking at had it stolen off it years ago but hasn't been ran since
[/quote]

[Eric Geiger]

let me rephrase the question actually to just coupes.  are all the coupe piston assembles the same?  I bought a NOS piston assembly off ebay with the matching part numbers for what was in the Coupe parts catalog.
Part # 04402-623-003
Eric J. Geiger
PRG Nocturne
XXX-XXX-XXXX  phone
XXX-XXX-XXXX  fax
XXX-XXX-XXXX  mobile
egeiger@...
www.prgnocturne.com

On May 20, 2012, at 9:09 AM, Eric Geiger wrote:
> is there a difference in the piston shaft assembly for each different brake booster, or are they all the same?  asking cuz i just bought a NOS one off ebay since it seemed like it was too rare to pass up.
> Eric J. Geiger
> On May 20, 2012, at 1:51 AM, billmyong@...
>   billmyong@...
> > wrote:
> > �
> >     Honda made three different power boosters for the 600's, the booster for the coupe is different in that it has one inlet and to outlets on the booster master slave cylinder.
> > The sedan booster can be replaced with a Sedan rear brake line hose.  And like has already been said there isn't much difference.
> >     If having a working booster on your restoration is a must have; then there are key issues that you will need to deal with.  The piston shaft will be warn and a warn shaft > > will have copper showing through the chrome plating meaning it will need to be rechormed.  The puppet valve has a very small piston and seal, both of which are hard to come by.  Besides all of the seals and rechroming the piston shaft, the cylinders themselves > > have corroded bores which will need to be resleeved in brass.  If all of these issues are not a deterrent then look to see if  the vacuum diaphragm (the parts manual referrers to it as the "Booster Plate") is in good condition, still attached to the plate > > and will seal to the base.  All of which is necessary to complete the rebuild.
> > You can replumb the system and it will work, and there are brake line manufacturers that have the correct size and thread pitch for the flare nuts:  See Miles input below from a while back...
> > Subject: [2cylinderhondas] Re: 600 brake lines threads
> > > Brake Lines & Fittings Defined:
> > > Wheel cylinders (rears) on the USA sold Honda 600 Sedan & Coupe:
> > > The Hard lines and flex lines have 10 x 1.25 thread pitch.
> > > The Bleeders are 8 x 1.25 thread pitch
> > > The Calipers are 10 x 1.25 thread pitch on the Banjo fittings
> > > The Bleeders are 10 x 1.0 thread pitch
> > > Brake Master cylinder hard lines are 10 x 1.25mm
> > > Bleeders are 8 x 1.25
> > > Brake Booster in & out 10 x 1.25 (early sedan bendix boosters differ)
> > > Brake booster low pressure switches 1/8 BSP not NPT thread pitch
> > > Civic & most other later Honda's flare nuts are 10 x 1.0mm thread
> > > pitch and unless you use Civic wheel cylinder forcing the flare nuts
> > > in is not recommended.
> > > You can cut the Honda 600 or S600/S800 flare nuts off the steel
> > > brake lines then install them onto your new 3/16" steel lines.
> > > Finding the flare nuts in the Honda 600 pitch is difficult but I
> > > hear someone in Japan made new ones for the S600 people.
> > > I bought a Double Flaring tool many years ago from Sears and
> > > recently used it to make hard lines for my Honda motorcycle using
> > > some re-zinc flare nuts and new 3/16" line.
> > > Miles
> > Some places to go to for brake assistance:
> > http://www.brakecylinder.com/
> > http://www.classictube.com/
> > http://www.whitepost.com/brakeform.html
> > http://www.inlinetube.com/
> > To name a few.
> > Bill
> > > -----Original Message-----
> > > From:
> > > anzhonda600owners@yahoogroups.com
> > > [mailto:anzhonda600owners@yahoogroups.com]
> > > On Behalf Of
> > > jbmkwaj@...
> > > Sent:
> > > Saturday, May 19, 2012 9:51 PM
> > > To:
> > > anzhonda600owners@yahoogroups.com
> > > Subject:
> > > Re: [anzhonda600owners] vacuum brake booster
> > > I believe there are 3 different units - Miles has described these in the past. I have a few boxes full of these - plenty around, but I am sure all in need of a rebuild.
> > > -----Original Message-----
> > > From: Eric Geiger > > egeiger@...
> > > To: > > anzhonda600owners@yahoogroups.com
> > > > > > anzhonda600owners@yahoogroups.com
> > > Sent: Sat, May 19, 2012 9:47 pm
> > > Subject: Re: [anzhonda600owners] vacuum brake booster
> > > he doesn't have any brake booster parts on his website but like i said i believe there are a few on ebay for cheap.
> > > Eric J. Geiger
> > > PRG Nocturne
> > > XXX-XXX-XXXX
> > >  phone
> > > XXX-XXX-XXXX
> > >  fax
> > > XXX-XXX-XXXX
> > >  mobile
> > > egeiger@...
> > > www.prgnocturne.com
> > > On May 19, 2012, at 11:34 PM, > > jbmkwaj@...
> > >   > > jbmkwaj@...
> > > > wrote:
> > > > Yes, many of our cars are run without the booster. The owners manual shows a brand new car, fulled loaded, at 70 MPH, will stop 10 feet shorter with a fully functioning booster. not a big difference IMO. I think > > > > it was more of a gimmick for the American public.
> > > > -----Original Message-----
> > > > From: Justin > > > justinazevedo47@...
> > > > To: anzhonda600owners > > > anzhonda600owners@yahoogroups.com
> > > > Sent: Sat, May 19, 2012 9:24 pm
> > > > Subject: [anzhonda600owners] vacuum brake booster
> > > > can the brakes still operate without the brake booster? curious because the one i am looking at had it stolen off it years ago but hasn't been ran since

[friend]

�
Hi Eric;
Yes, it is the same for all boosters made for the Honda 600 AZ Coupe.   Of note is the pin that goes into the end of the assembly, if missing the booster will not release.
Bill

> -----Original Message-----
> From:
> anzhonda600owners@yahoogroups.com
> [mailto:anzhonda600owners@yahoogroups.com]
> On Behalf Of
> Eric
> Geiger
> Sent:
> Sunday, May 20, 2012 8:05 AM
> To:
>
> Subject:
> Re:
> [anzhonda600owners] vacuum brake booster
> let me rephrase the question actually to just coupes.  are all the > coupe piston assembles the same?  I bought a NOS piston assembly off ebay > with the matching part numbers for what was in the Coupe parts > catalog.
> Part
> # 04402-623-003
> Eric J. Geiger
> PRG
> Nocturne
> XXX-XXX-XXXX
>  phone
> XXX-XXX-XXXX
>  fax
> XXX-XXX-XXXX
>  mobile
> egeiger@...
> www.prgnocturne.com
> On May 20, 2012, at 9:09 AM, Eric Geiger wrote:
> > is there a difference in the piston shaft assembly for each different > > brake booster, or are they all the same?  asking cuz i just bought a > > NOS one off ebay since it seemed like it was too rare to pass up.
> > Eric J. Geiger
> > On May 20, 2012, at 1:51 AM, > billmyong@...
> >   > billmyong@...
> > wrote:
> > > �
> > >     Honda made three different power boosters for
> > > the 600's, the booster for the coupe is different in that it has one inlet > > > and to outlets on the booster master slave cylinder.  The sedan > > > booster can be replaced with a Sedan rear brake line hose.  And like > > > has already been said there isn't much difference.
> > >     If having a working booster on your restoration
> > > is a must have; then there are key issues that you will need to deal > > > with.  The piston shaft will be warn and a warn shaft will > > > have copper showing through the chrome plating meaning it will need to be > > > rechormed.  The puppet valve has a very small piston and seal, both > > > of which are hard to come by.  Besides all of the seals and > > > rechroming the piston shaft, the cylinders themselves have corroded bores > > > which will need to be resleeved in brass.  If all of these issues are > > > not a deterrent then look to see if  the vacuum diaphragm (the > > > parts manual referrers to it as the "Booster Plate") is in good > > > condition, still attached to the plate and will seal to the base.
> > > All of which is necessary to complete the rebuild.
> > > You can replumb the system and it will work, and
> > > there are brake line manufacturers that have the correct size and thread > > > pitch for the flare nuts:  See Miles input below from a while > > > back...
> > > Subject: [2cylinderhondas] Re: 600 brake lines
> > > threads
> > > > Brake Lines & Fittings
> > > Defined:
> > > > Wheel cylinders (rears) on the USA sold Honda 600 Sedan > > > & Coupe:
> > > > The Hard lines and flex lines have 10 x 1.25 thread
> > > pitch.
> > > > The Bleeders are 8 x 1.25 thread
> > > pitch
> > > > The Calipers are 10 x 1.25 thread pitch on the Banjo > > > fittings
> > > > The Bleeders are 10 x 1.0 thread
> > > pitch
> > > > Brake Master cylinder hard lines are 10 x
> > > 1.25mm
> > > > Bleeders are 8 x 1.25
> > > > Brake Booster in & out 10 x 1.25 (early sedan
> > > bendix boosters differ)
> > > > Brake booster low pressure switches 1/8 BSP not NPT
> > > thread pitch
> > > > Civic & most other later Honda's flare nuts are 10
> > > x 1.0mm thread
> > > > pitch and unless you use Civic wheel cylinder forcing > > > the flare nuts
> > > > in is not recommended.
> > > > You can cut the Honda 600 or S600/S800 flare nuts off > > > the steel
> > > > brake lines then install them onto your new 3/16" steel > > > lines.
> > > > Finding the flare nuts in the Honda 600 pitch is
> > > difficult but I
> > > > hear someone in Japan made new ones for the S600
> > > people.
> > > > I bought a Double Flaring tool many years ago from
> > > Sears and
> > > > recently used it to make hard lines for my Honda
> > > motorcycle using
> > > > some re-zinc flare nuts and new 3/16"
> > > line.
> > > > Miles
> > > Some places to go to for
> > > brake assistance:
> > > http://www.brakecylinder.com/
> > > http://www.classictube.com/
> > > http://www.whitepost.com/brakeform.html
> > > http://www.inlinetube.com/
> > > To name a few.
> > > Bill
> > > > -----Original Message-----
> > > > From:
> > > > anzhonda600owners@yahoogroups.com
> > > > [mailto:anzhonda600owners@yahoogroups.com]
> > > > On Behalf Of
> > > > jbmkwaj@...
> > > > Sent:
> > > > Saturday, May 19, 2012 9:51 PM
> > > > To:
> > > > anzhonda600owners@yahoogroups.com
> > > > Subject:
> > > > Re: [anzhonda600owners] vacuum brake
> > > > booster
> > > > I believe there are 3 different
> > > > units - Miles has described these in the past. I have a few boxes full > > > > of these - plenty around, but I am sure all in need of a > > > > rebuild.
> > > > -----Original Message-----
> > > > From: Eric
> > > > Geiger > > > egeiger@...
> > > > To:
> > > > > > > anzhonda600owners@yahoogroups.com
> > > > > > > anzhonda600owners@yahoogroups.com
> > > > Sent:
> > > > Sat, May 19, 2012 9:47 pm
> > > > Subject: Re: [anzhonda600owners] vacuum
> > > > brake booster
> > > > he doesn't have any brake booster parts on his website but like i > > > > said i believe there are a few on ebay for cheap.
> > > > Eric J. Geiger
> > > > PRG
> > > > Nocturne
> > > > XXX-XXX-XXXX
> > > >  phone
> > > > XXX-XXX-XXXX
> > > >  fax
> > > > XXX-XXX-XXXX
> > > >  mobile
> > > > egeiger@...
> > > > www.prgnocturne.com
> > > > On May 19, 2012, at 11:34 PM, > > > jbmkwaj@...
> > > >   > > > jbmkwaj@...
> > > > wrote:
> > > > > Yes, many of our cars
> > > > > are run without the booster. The owners manual shows a brand new car, > > > > > fulled loaded, at 70 MPH, will stop 10 feet shorter with a fully > > > > > functioning booster. not a big difference IMO. I think it was more of > > > > > a gimmick for the American public.
> > > > > -----Original Message-----
> > > > > From:
> > > > > Justin > > > > justinazevedo47@...
> > > > > To:
> > > > > anzhonda600owners > > > > anzhonda600owners@yahoogroups.com
> > > > > Sent:
> > > > > Sat, May 19, 2012 9:24 pm
> > > > > Subject: [anzhonda600owners] vacuum brake
> > > > > booster
> > > > > can the brakes still operate without the brake booster? curious > > > > > because the one i am looking at had it stolen off it years ago but > > > > > hasn't been ran since

[Eric Geiger]

it has the pin.  heres a link http://www.ebay.com/itm/251065281423?it ... 500wt_1332
Eric J. Geiger
PRG Nocturne
XXX-XXX-XXXX  phone
XXX-XXX-XXXX  fax
XXX-XXX-XXXX  mobile
egeiger@...
www.prgnocturne.com
On May 20, 2012, at 12:24 PM, �
> Hi Eric;
> Yes, it is the same for all boosters made for the Honda 600 AZ Coupe.   Of note is the pin that goes into the end of the assembly, if missing the booster will not release.
> Bill
> > -----Original Message-----
> > From:
> > anzhonda600owners@yahoogroups.com
> > [mailto:anzhonda600owners@yahoogroups.com]
> > On Behalf Of
> > Eric Geiger
> > Sent:
> > Sunday, May 20, 2012 8:05 AM
> > To:
> > > anzhonda600owners@yahoogroups.com
> > Subject:
> > Re: [anzhonda600owners] vacuum brake booster
> > let me rephrase the question actually to just coupes.  are all the coupe piston assembles the same?  I bought a NOS piston assembly off ebay with the matching part numbers for what was in the Coupe parts catalog.
> > Part # 04402-623-003
> > Eric J. Geiger
> > PRG Nocturne
> > XXX-XXX-XXXX
> >  phone
> > XXX-XXX-XXXX
> >  fax
> > XXX-XXX-XXXX
> >  mobile
> > egeiger@...
> > www.prgnocturne.com
> > On May 20, 2012, at 9:09 AM, Eric Geiger wrote:
> > > is there a difference in the piston shaft assembly for each different brake booster, or are they all the same?  asking cuz i just bought a NOS one off ebay since it seemed like it was too rare to pass up.
> > > Eric J. Geiger
> > > On May 20, 2012, at 1:51 AM, > > billmyong@...
> > >   > > billmyong@...
> > > > wrote:
> > > > �
> > > >     Honda made three different power boosters for the 600's, the booster for the coupe is different in that it has one inlet and to outlets on the booster master slave cylinder.
> > > > The sedan booster can be replaced with a Sedan rear brake line hose.  And like has already been said there isn't much difference.
> > > >     If having a working booster on your restoration is a must have; then there are key issues that you will need to deal with.  The piston shaft will be warn and a warn shaft > > > > will have copper showing through the chrome plating meaning it will need to be rechormed.  The puppet valve has a very small piston and seal, both of which are hard to come by.  Besides all of the seals and rechroming the piston shaft, the cylinders themselves > > > > have corroded bores which will need to be resleeved in brass.  If all of these issues are not a deterrent then look to see if  the vacuum diaphragm (the parts manual referrers to it as the "Booster Plate") is in good condition, still attached to the plate > > > > and will seal to the base.  All of which is necessary to complete the rebuild.
> > > > You can replumb the system and it will work, and there are brake line manufacturers that have the correct size and thread pitch for the flare nuts:  See Miles input below from a while back...
> > > > Subject: [2cylinderhondas] Re: 600 brake lines threads
> > > > > Brake Lines & Fittings Defined:
> > > > > Wheel cylinders (rears) on the USA sold Honda 600 Sedan & Coupe:
> > > > > The Hard lines and flex lines have 10 x 1.25 thread pitch.
> > > > > The Bleeders are 8 x 1.25 thread pitch
> > > > > The Calipers are 10 x 1.25 thread pitch on the Banjo fittings
> > > > > The Bleeders are 10 x 1.0 thread pitch
> > > > > Brake Master cylinder hard lines are 10 x 1.25mm
> > > > > Bleeders are 8 x 1.25
> > > > > Brake Booster in & out 10 x 1.25 (early sedan bendix boosters differ)
> > > > > Brake booster low pressure switches 1/8 BSP not NPT thread pitch
> > > > > Civic & most other later Honda's flare nuts are 10 x 1.0mm thread
> > > > > pitch and unless you use Civic wheel cylinder forcing the flare nuts
> > > > > in is not recommended.
> > > > > You can cut the Honda 600 or S600/S800 flare nuts off the steel
> > > > > brake lines then install them onto your new 3/16" steel lines.
> > > > > Finding the flare nuts in the Honda 600 pitch is difficult but I
> > > > > hear someone in Japan made new ones for the S600 people.
> > > > > I bought a Double Flaring tool many years ago from Sears and
> > > > > recently used it to make hard lines for my Honda motorcycle using
> > > > > some re-zinc flare nuts and new 3/16" line.
> > > > > Miles
> > > > Some places to go to for brake assistance:
> > > > http://www.brakecylinder.com/
> > > > http://www.classictube.com/
> > > > http://www.whitepost.com/brakeform.html
> > > > http://www.inlinetube.com/
> > > > To name a few.
> > > > Bill
> > > > > -----Original Message-----
> > > > > From:
> > > > > anzhonda600owners@yahoogroups.com
> > > > > [mailto:anzhonda600owners@yahoogroups.com]
> > > > > On Behalf Of
> > > > > jbmkwaj@...
> > > > > Sent:
> > > > > Saturday, May 19, 2012 9:51 PM
> > > > > To:
> > > > > anzhonda600owners@yahoogroups.com
> > > > > Subject:
> > > > > Re: [anzhonda600owners] vacuum brake booster
> > > > > I believe there are 3 different units - Miles has described these in the past. I have a few boxes full of these - plenty around, but I am sure all in need of a rebuild.
> > > > > -----Original Message-----
> > > > > From: Eric Geiger > > > > egeiger@...
> > > > > To: > > > > anzhonda600owners@yahoogroups.com
> > > > > > > > > > anzhonda600owners@yahoogroups.com
> > > > > Sent: Sat, May 19, 2012 9:47 pm
> > > > > Subject: Re: [anzhonda600owners] vacuum brake booster
> > > > > he doesn't have any brake booster parts on his website but like i said i believe there are a few on ebay for cheap.
> > > > > Eric J. Geiger
> > > > > PRG Nocturne
> > > > > XXX-XXX-XXXX
> > > > >  phone
> > > > > XXX-XXX-XXXX
> > > > >  fax
> > > > > XXX-XXX-XXXX
> > > > >  mobile
> > > > > egeiger@...
> > > > > www.prgnocturne.com
> > > > > On May 19, 2012, at 11:34 PM, > > > > jbmkwaj@...
> > > > >   > > > > jbmkwaj@...
> > > > > > wrote:
> > > > > > Yes, many of our cars are run without the booster. The owners manual shows a brand new car, fulled loaded, at 70 MPH, will stop 10 feet shorter with a fully functioning booster. not a big difference IMO. I think > > > > > > it was more of a gimmick for the American public.
> > > > > > -----Original Message-----
> > > > > > From: Justin > > > > > justinazevedo47@...
> > > > > > To: anzhonda600owners > > > > > anzhonda600owners@yahoogroups.com
> > > > > > Sent: Sat, May 19, 2012 9:24 pm
> > > > > > Subject: [anzhonda600owners] vacuum brake booster
> > > > > > can the brakes still operate without the brake booster? curious because the one i am looking at had it stolen off it years ago but hasn't been ran since
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