[Roadsters] Rear Brake Swap

[Gary Ault]

Ray,
Rear brake cylinders were the same on 1600s and 2000s. 1965 to 1967 cars ised 13/16 cylinders, while 1967-1/2 to 1970 cars used 3/4 cylinders.  I don't know why Nissan changed the diameter with the '67-1/2 xars, but I'm guessing it had something to do with the incorporation of dual brake systems.
Gary


Sent from my mobile phone.

-------- Original message --------
From: Roy Haslett via Datsun-roadsters <datsun-roadsters at autox.team.net> 
Date: 09/08/2015  11:44 AM  (GMT-06:00) 
To: primodonna1 at juno.com, datsun-roadsters at autox.team.net 
Subject: Re: [Roadsters] Rear Brake Swap 

Would these fit a 67 1600? 13/16 or 3/4?

        From: primodonna1--- via Datsun-roadsters <datsun-roadsters at autox.team.net>
 To: datsun-roadsters at autox.team.net 
 Sent: Thursday, September 3, 2015 3:36 PM
 Subject: [Roadsters]  Rear Brake Swap
   
The best plug and play rear brake cylinders for a 68 2000 are the stock Nissan ones.  They are still available at Nissan and come with a warranty.  New ones would probably last 15 or 20 years.  How much do you think you can save when using mismatched parts. PD  Understood, Ron. Really looking for a plug-and-play solution (if any, and there may not be one).

- Bob



On 9/3/2015 5:10 PM, Ronnie Day wrote:I'd suggest verifying the line fitting threads on anything you substitute. IIRC, those threads on the OE Roadster brake components were SAE while those on the 510, Z, etc. were metric. You might need adapters or new hard lines with the correct fittings. FWIW,Ron
On Thu, Sep 3, 2015 at 3:24 PM, RWM via Datsun-roadsters <datsun-roadsters at autox.team.net> wrote:
Anyone have experience with or know of a compatible/interchangeable 7/8" or 15/16" rear wheel cylinder?

Looking for more rear brake bias, and based on prior notes, the 13/16" doesn't seem to move the meter.

Thanks.

-  Bob Mann, '68 2000 Solex



On 8/31/2015 8:34 PM, Pete via Datsun-roadsters wrote:15/16 is what the all drum 1500 and 410/411 use.  They also have two 1-inch wheel cylinders per front wheel.  Me likey disc brake mo bettah! PeteFrom: RWM via Datsun-roadstersSent: Monday, August 31, 2015 4:49 PMTo: Roy Haslett; Datsun Roadster ListserverReply To: RWMSubject: Re: [Roadsters] Rear Brake Swap
That seems to be the design point.  

I wonder what happens if you go to 7/8" or 15/16" cylinders?





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