[TR] 61 TR3A Question Brakes

[Jim Henningsen]

Thanks.  After removing and inspecting, I think the spring was binding on the threads and staying shut.  I am going to removing spring and screw and reinstall.  My front tires were locked up prior.  Amazing.  Jim 

 

From: Randall <tr3driver at ca.rr.com> 
Sent: Wednesday, November 06, 2019 1:43 PM
To: triumphs at autox.team.net; Jim Henningsen <trguy75 at gmail.com>; 'Triumphs' <triumphs at autox.team.net>
Subject: Re: [TR] 61 TR3A Question Brakes

 

I've had mine disabled since around 1975.

The only downside to disabling the valve is that you may notice a low pedal after hard cornering.
At least for me, I've always still been able to get good brakes on the first application, the pedal just goes down farther than it usually does. Kind of disconcerting if you aren't expecting it, but it only takes one pump to bring it back up.

There is a modification to eliminate the low pedal, developed by "uncle jack" Drews IIRC and sold today by TRF (and probably others). Probably a good idea if you're going racing, but not really required on the street, IMO. I forget the change point offhand, but the factory quit fitting the valve at some point, either during TR4 or maybe when the 4A was introduced.
-- Randall

On 6 November 2019 12:19:21 GMT-06:00, Jim Henningsen <trguy75 at gmail.com <mailto:trguy75 at gmail.com> > wrote:

My front brakes feel like they are dragging and I heard that it can be
caused by faulty restrictor valve assembly (part number 116197 in Tr4 parts
manual).  I have same part on my 62 early Tr4.  The calipers have been
rebuilt, new seals, ss pistons, hoses and dot 5.  New master cylinder too.
Any harm in removing the spring and "screw" internals on the restrictor
valve so fluid flows freely.  Also heard that you don't really need
restrictor valve.  
Thanks in advance,
Jim Henningsen
61 TR3A
62 TR4
75 TR6
82 Jeep CJ8

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