Paul,
You most definitely need the higher volume of a 7/8" bore master to operate
4-piston Volvo brakes. There's a couple of cylinders on Ebay right now
http://tinyurl.com/ypzawo http://tinyurl.com/2hw6ps
For the push-rod, you can either swap out the retaining ring/disk/rod from
your existing cylinder and use shims for adjusting pedal height, or scrounge
up an adjustable rod/clevis from a Z-car brake or clutch cylinder.
Be aware that the roadster cylinder uses SAE threads at the flare fittings,
while the Z uses metric inverted flare fittings (not bubble). This means
you have to cut off the exisiting flared-ends, replace the end fittings with
metric, then redo the double flares.
Mark Sedlack
ZROC
Cuyahoga Falls OH
66 1600 http://www.mildevco.net/chevypowereddatsuns/
77 280Z http://www.mildevco.net/chevypowereddatsuns/
----- Original Message -----
From: "Paul Souza" <pauljsouza@yahoo.com>
To: <datsun-roadsters@autox.team.net>
Sent: Sunday, September 02, 2007 12:55 PM
Subject: [Roadsters] Volvo brakes - Master cylinder options
> Hi Everyone,
> I am disappointed in the performance of my Volvo brakes. I am using the
stock master cylinder and now I am thinking the Volvo brakes are not getting
enough fluid to work properly. I am considering purchasing and installing a
7/8" master cylinder setup.
>
> I noticed Dean has a custom setup http://www.datsunparts.com/1241
Tandem Brake Cylinder 7/8". Has anyone installed this setup ?
>
> My concern is the plunger rod that connects to the brake pedal. I
believe I have to customize my old one to make this work.
>
> Please share advice.
>
> THANKS !
>
> Paul Souza
> 69 2000
> Vacaville, CA
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