Steering, Suspension, & Brakes

tips, technology, tools and techniques related to non-driveline mechanical components

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rficalora
Rob Ficalora
Willis, TX
(2636 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
7/8 or 1" Brake master for non-servo pedal box?
Posted by: rficalora
Date: February 08, 2011 08:59AM

Anyone know of one that'll fit in there? Wilwood has a couple that might fit -- best one looks to be 260-8794 but at a little over 7" long it may be too long. Wondering what else is out there.

I have enough pedal to test drive this weekend but will need to swap the master before really driving it around.


74ls1tr6
Calvin Grannis
Elk Grove,CA
(1150 posts)

Registered:
11/10/2007 10:05AM

Main British Car:
74 TR6 / 71 MGB GT TR6/Ls1 71 MGB GT/Ls1

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Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: 74ls1tr6
Date: February 08, 2011 09:56AM

What insurance did you end up with Rob?? Ageed Value and how many miles a year?? Or did you do an Agreed value on top of normal insurance?

I'm shopping around right now!

Sorry for being off subject.


rficalora
Rob Ficalora
Willis, TX
(2636 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: rficalora
Date: February 08, 2011 10:25AM

No worries Calvin. I haven't insured it yet -- need to get it out of the garage to send pics which I'll be doing this weekend when I do the 1st test drive :). Am going with ANPAC/Chrome. Declared as Modified/Custom; 10k mile/yr restriction; $21K agreed value; 300/500 liability; $500 deductables for collision & comprehensive. Right about $400/yr. Requires it not be a daily driver; must have other primary vehicles for each driver in the household.

Runner up was American Collecors -- 7.5k mile limit (they call it "Freedom level"); same valuation & generally the same restrictions but $1000 deductable. Initial quote came back at $499/yr but it didn't note it was modified. When I asked them about that they said it was quoted as a standard MGB & sent an updated quote -- $915/yr.


mgb260
Jim Nichols
Sequim,WA
(2007 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: mgb260
Date: February 08, 2011 11:34AM

Rob, I like the 1" Corvette style in the Speedway catalog,probably in Summit and Jegs also.Meant for 4 wheel discs and fittings can go on either side.That is for newer pedal box. For older models I use dual masters with balance bar. You can also look at some import ones(Toyota,Nissan,Subaru) that look similar to stock at rockauto.com. Maybe 79-81 Nissan 280ZX 15/16".You could use remote reservoirs. Banjo fittings (probably 10mmx1.0) to IFF to residual valves to existing lines.Silver Mine Motors has best price at $85. Looking forward to seeing the car pics!
359896.jpg



Edited 6 time(s). Last edit at 02/08/2011 12:43PM by mgb260.


rficalora
Rob Ficalora
Willis, TX
(2636 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: rficalora
Date: February 08, 2011 12:41PM

That 79-81 Nissan 280ZX 15/16" one looks good Jim. Looks to be the same casting as the Wilwood one I found @ Summit (although Wilwood's is 1") at about 1/2 the price. Looks like a re-man one goes for as little as $45 too which makes it worth trying out if it's not too long. About the only think I could see that would be better is if the ports were on the other side.

Is there a way to search RockAuto or some other site using specs like bore diameter, dual circuit, etc.?


mgb260
Jim Nichols
Sequim,WA
(2007 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: mgb260
Date: February 08, 2011 11:00PM

Rob, I don't know if this will work but, it gets good reviews. Meant for 4 wheel discs. 93-95 Non ABS Toyota 1" FJ80-built in residual valves.V6 Pickup,FourRunner,Land Cruiser,T-100 truck. Only the FJ80 Land Cruiser has built in rear residual valve as it has rear discs stock. Would have to drill 4 holes for mount and open up original opening.Looks shorter than Wilwood and cap is forward.
all pro offroad fj80.jpg



Edited 4 time(s). Last edit at 02/09/2011 12:37PM by mgb260.


motek
George Smathers
Spokane, WA
(118 posts)

Registered:
09/12/2009 02:45PM

Main British Car:
1967 Morris Minor (48 hp @ crank!), 1971 TR6 302

Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: motek
Date: February 08, 2011 11:33PM

Rob and Calvin,

I just got a quote last week from Hagerty. 300/500 liability, 500 deductible, 25K agreed value, collector plates, nondaily driver, for 360/year. They know it is modified and they are OK with it still not having an interior or most body panels. I went with them and didn't call anyone else because I used them in the past (I never had a claim though).


George



Edited 1 time(s). Last edit at 02/09/2011 12:13AM by motek.



rficalora
Rob Ficalora
Willis, TX
(2636 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: rficalora
Date: February 09, 2011 09:17AM

Hagerty's policy has pretty tight usage restrictions -- at least the policies they write in TX do (each state is different). In TX the policy only includes hobby use -- parades, going to/from a club mtg or repair shop; etc. Running down to the local gas station for a loaf of bread wouldn't be covered as an example. Read your contract to be sure. For a minor accident you'd probably never have a problem even if you were outside the limits of the restrictions but in a situation where there was a major liability involved you could be denied coverage if you were outside of the usage restrictions. You could stand to lose a house, savings, etc. resulting from a law suit in a situation like that. It's just not worth the risk IMO.


mgb260
Jim Nichols
Sequim,WA
(2007 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: mgb260
Date: February 09, 2011 08:27PM

Rob, Here is a compact 1" master. 90-96 Acura Integra LS. Looks like you could use the Wilwood remote reservoir but outlets are on the right side.
getimage.jpg



Edited 2 time(s). Last edit at 02/15/2011 09:36PM by mgb260.


rficalora
Rob Ficalora
Willis, TX
(2636 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: rficalora
Date: February 09, 2011 09:24PM

I've been scanning a bunch of them -- haven't found a site that lets you search for things like bore or flange "orientation" but PartsBin.com at least has pics & lists the bore.

Do most of the ones w/single reservoirs have a divider? I'm guessing so because if not, would seem to defeat the point of a dual circuit master I think.


mgb260
Jim Nichols
Sequim,WA
(2007 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: mgb260
Date: February 11, 2011 12:09AM

Rob, The 1" master I show above is for ABS,non-ABS is 15/16". Mid 80's Honda Accord looks the same but is 7/8". Here is how the dual master single reservoir works:
getimage.jpg


DiDueColpi
Fred Key
West coast - Canada
(1259 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

authors avatar
Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: DiDueColpi
Date: February 11, 2011 04:07AM

Hey Jim,

I spend a lot of my day sourcing parts and making things fit where they weren't meant to.
And I'm the go to guy around here when you get stuck.
But you make me look like a rookie.
I am endlessly amazed at the parts that you come up with.
You are the master, and have my humble respect.

Cheers
Fred


mgb260
Jim Nichols
Sequim,WA
(2007 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: mgb260
Date: February 11, 2011 08:26AM

Thanks, Fred! I enjoy finding things that work and helping others.


rficalora
Rob Ficalora
Willis, TX
(2636 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: rficalora
Date: February 11, 2011 02:40PM

Thanks Jim -- 15/16 will likely be ok. Don't really know what I need or how to calculate it. Just can tell the 3/4" MC isn't pushing enough fluid.

My plan is to try something in this range & adjust from there. That's one reason I'm focusing on the less expensive ones. The one delimma I have is the ones identified so far (by you and a few I found on RockAuto) aren't stocked locally -- I'd have to order & pay just to be able to see it. I know I need one that's no longer than 6 1/2" from face of the flange to furthest back point -- haven't found any on-line resources with measured diagrams yet. There must be one out there though. That way I can rule out the ones that will be too long.


mgb260
Jim Nichols
Sequim,WA
(2007 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: mgb260
Date: February 11, 2011 10:46PM

Rob, I know that Acura 15/16" is short enough but I wonder if the reservoir is too tall or far back. I think it would be just right for your Wilwood front brakes but, I think you would need a proportioning valve to turn down the rear brakes a bit. I would cut the mounting ears down just below the bolt holes and drill new mounting holes to make it more compact. Those were the shortest looking ones I could find. I'll try to find a measurement for you. You could get one at the wrecking yard and if it will work,buy a kit to rebuild or use for core charge on new or remanufactured. 88-89 Accord(only 7/8 though) and 90-91 Prelude SI (15/16)look the same and dirt cheap,no core required at Rockauto.com.$30-$50. Picture of Prelude:
getimage 91 Prelude.jpg



Edited 4 time(s). Last edit at 02/15/2011 01:48AM by mgb260.



mgb260
Jim Nichols
Sequim,WA
(2007 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: mgb260
Date: February 13, 2011 11:20AM

Here is another compact master cylinder(7/8").1999 Honda Civic EX. Looks like you could turn reservoir around for backward facing early MGB.
getimage 1999 civic si.jpg



Edited 1 time(s). Last edit at 02/15/2011 09:37PM by mgb260.


rficalora
Rob Ficalora
Willis, TX
(2636 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: rficalora
Date: February 14, 2011 01:53PM

Thanks Jim. I like the reservoir on that one... but given how soft my pedal is with 3/4", I think 15/16 or 1" is what I'm going to need. I picked up a 15/16" one since it's in the middle of the range (7/8-1"). Going to try that & see how it works & go from there. eBay seems to be a great way to find stuff like this to try out -- used, but cheap so if it doesn't work out it's not the end of the world.


mgb260
Jim Nichols
Sequim,WA
(2007 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: mgb260
Date: February 14, 2011 04:59PM

Yeah, I just posted the other one for those who need a 7/8". In my experience with Toyota 4 piston calipers (about the same piston size as your Wilwood) 15/16" is perfect. Your rear brakes are somewhat large and probably need a proportioning valve. If you went 1", it would be perfect for the rear brakes but, a little large for the front and produce a harder pedal feel. Are you getting the Acura or the Prelude one I show? Remember to bench bleed first. Also the push rod may have to be adapted and just a little slack(1/4" freeplay at pedal). Usually the fittings are 10mmX1.0 if one looks larger it is 12MMX1.0. Use a short separate line with Metric on one side and Inverted flare on the other.Then to 2 LB residual valves, then to your existing lines.. These masters are meant for 4 wheel discs but use a separate residual block. Good luck and keep us posted.



Edited 4 time(s). Last edit at 02/15/2011 09:39PM by mgb260.


rficalora
Rob Ficalora
Willis, TX
(2636 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: rficalora
Date: February 15, 2011 12:33AM

Thanks Jim - the one I got is the Legend LS one. Ports are on the right and look like they'll clear the pedal box. I already modified the ears and drilled new mounting holes. Haven't found a reservoir yet but local bone yard says they have the prelude one & I think it'll fit. In the mean time I've jerry-rigged a reservoir using some poly tubing and a pvc fitting for the cap. Should work well enough to try it out. Hope to get it swappwd in tomorrow or Weds nite. Will keep you guys posted.


mgb260
Jim Nichols
Sequim,WA
(2007 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 7/8 or 1" Brake master for non-servo pedal box?
Posted by: mgb260
Date: February 15, 2011 01:00AM

Cool! Boy, you got it fast! How long is it?



Edited 1 time(s). Last edit at 02/15/2011 01:49AM by mgb260.
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