[6pack] PDW Switch

COLIN THOM colinthom at shaw.ca
Fri Jun 2 08:31:33 MDT 2017 

Repairing the existing one is easy. When I resealed mine, and at subsequent system bleeds, I used a small jeweler's screwdriver to center the shuttle inside the valve. I couldn't seem to center it by using the pedal, as the instructions say. The screwdriver trick took seconds. 
Colin 74-1/2 


From: 6pack-request at autox.team.net 
To: 6pack at autox.team.net 
Sent: Thursday, June 1, 2017 5:01:08 PM 
Subject: 6pack Digest, Vol 32, Issue 2 

Send 6pack mailing list submissions to 
6pack at autox.team.net 

To subscribe or unsubscribe via the World Wide Web, visit 
http://autox.team.net/mailman/listinfo/6pack 
or, via email, send a message with subject or body 'help' to 
6pack-request at autox.team.net 

You can reach the person managing the list at 
6pack-owner at autox.team.net 

When replying, please edit your Subject line so it is more specific 
than "Re: Contents of 6pack digest..." 


Today's Topics: 

1. Re: PDW Switch (Bud Rolofson) 
2. Re: PDW Switch (Timothy Holbrook) 
3. Re: PDW Switch (Richard) 


---------------------------------------------------------------------- 

Message: 1 
Date: Thu, 1 Jun 2017 14:25:59 -0600 
From: Bud Rolofson <levilevi at comcast.net> 
To: Alex&Janet Thomson <aljlthomson at charter.net> 
Cc: triumphs <Triumphs at autox.team.net>, 6-Pack <6pack at autox.team.net> 
Subject: Re: [6pack] PDW Switch 
Message-ID: <025C40EB-3C21-425F-A3BF-5071CF0F5D30 at comcast.net> 
Content-Type: text/plain; charset="windows-1252" 

The switch doesn?t actually (and was not intended to) seal anything in the PDWA, the o-rings on the barbells internally seal the fluid in the PDWA. Replace those and center the barbell and the switch should be fine. I have the o-rings (not the cupped version) for the PDWA, send me an address and I?ll mail you some. Oh and I would NOT eliminate the PDWA unless you have the worlds best emergency brake, and then even then probably not. 

Bud Rolofson 

Extreme Parts Racing (more than just a haircut) 

71TR6 CC57365 (Good 6) 
71 Spitfire MK IV Race Car #3 
69 Spitfire MK III (back up FE engine/dinghy car) 
93 Minnie Winnie Race Support Vehicle 
77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike) 

On May 31, 2017, at 3:40 PM, Alex&Janet Thomson via 6pack <6pack at autox.team.net> wrote: 

> Lists ? I know I saw some discussion several months back about repairing/replacing the brake Pressure Differential Warning switch. Naturally, it was not an issue with me then and I didn?t save the responses. At any rate, there is brake fluid leaking out of the actual switch that screws into the PDW block. I noticed that Moss has new ones (aluminum) for $439 and repair kits for the older brass units (such as ours) for $13. Any thoughts on the best avenue to take? Has anyone simply eliminated the assembly and connected the brake lines with couplings, front-to-front and back-to-back? The subject is a ?73 TR6. Thanks. 
> 
> Alex Thomson 
> _______________________________________________ 
> Support Team.Net http://www.team.net/donate.html 
> Suggested annual donation $12.96 
> Archive: http://www.team.net/archive 
> Forums: http://www.team.net/forums 
> 
> 6pack at autox.team.net 
> http://autox.team.net/mailman/listinfo/6pack 
> 
> Unsubscribe/Manage: http://autox.team.net/mailman/options/6pack/levilevi@comcast.net 

-------------- next part -------------- 
An HTML attachment was scrubbed... 
URL: <http://autox.team.net/pipermail/6pack/attachments/20170601/8a86357e/attachment-0001.html> 

------------------------------ 

Message: 2 
Date: Thu, 1 Jun 2017 23:45:29 +0000 (UTC) 
From: Timothy Holbrook <tjh173 at yahoo.com> 
To: Fszek via 6pack <6pack at autox.team.net> 
Subject: Re: [6pack] PDW Switch 
Message-ID: <1079431212.938289.1496360729287 at mail.yahoo.com> 
Content-Type: text/plain; charset="utf-8" 

blockquote, div.yahoo_quoted { margin-left: 0 !important; border-left:1px #715FFA solid !important; padding-left:1ex !important; background-color:white !important; } Why is it a bad idea to remove the PDWA? Does it serve any purpose other than to inform the driver of the obvious "you've just lost half your brakes"?? 
My understanding is that PDWA simply provides a ground for the warning bulb, such that it illuminates when you've had a sudden loss in either the front or rear brakes. It won't provide any help though, right? ?I doubt the driver will even notice that the light has illuminated, he/she will be too busy looking for a safe way to bring the car to a stop!? 
Tim Holbrook1971 TR6 



On Thursday, June 1, 2017, 6:55 PM, Bud Rolofson via 6pack <6pack at autox.team.net> wrote: 

The switch doesn?t actually (and was not intended to) seal anything in the PDWA, the o-rings on the barbells internally seal the fluid in the PDWA. Replace those and center the barbell and the switch should be fine. I have the o-rings (not the cupped version) for the PDWA, send me an address and I?ll mail you some. Oh and I would NOT eliminate the PDWA unless you have the worlds best emergency brake, and then even then probably not. 
Bud Rolofson 

Extreme Parts Racing?(more than just a haircut) 

71TR6 CC57365 (Good?6) 
71 Spitfire MK IV Race?Car #3 
69 Spitfire MK III (back?up FE engine/dinghy car) 
93 Minnie Winnie Race?Support Vehicle? 
77 Z-50A Hardly?Davidson Honda Mini-Trail Bike (Triumph Pit?Bike) 
On May 31, 2017, at 3:40 PM, Alex&Janet Thomson via 6pack <6pack at autox.team.net> wrote: 

Lists ? I know I saw some discussion several months back about repairing/replacing the brake Pressure Differential Warning switch. Naturally, it was not an issue with me then and I didn?t save the responses. At any rate, there is brake fluid leaking out of the actual switch that screws into the PDW block. I noticed that Moss has new ones (aluminum) for $439 and repair kits for the older brass units (such as ours) for $13. Any thoughts on the best avenue to take? Has anyone simply eliminated the assembly and connected the brake lines with couplings, front-to-front and back-to-back? The subject is a ?73 TR6. Thanks. ?Alex Thomson _______________________________________________ 
Support?Team.Net?http://www.team.net/donate.html 
Suggested annual donation ?$12.96 
Archive:?http://www.team.net/archive 
Forums:?http://www.team.net/forums 

6pack at autox.team.net 
http://autox.team.net/mailman/listinfo/6pack 

Unsubscribe/Manage:?http://autox.team.net/mailman/options/6pack/levilevi@comcast.net 

_______________________________________________ 
Support Team.Net http://www.team.net/donate.html 
Suggested annual donation? $12.96 
Archive: http://www.team.net/archive 
Forums: http://www.team.net/forums 

6pack at autox.team.net 
http://autox.team.net/mailman/listinfo/6pack 

Unsubscribe/Manage: http://autox.team.net/mailman/options/6pack/tjh173@yahoo.com 




-------------- next part -------------- 
An HTML attachment was scrubbed... 
URL: <http://autox.team.net/pipermail/6pack/attachments/20170601/ba2ab1e3/attachment-0001.html> 

------------------------------ 

Message: 3 
Date: Thu, 1 Jun 2017 17:00:48 -0700 
From: Richard <taylorturbo6 at yahoo.com> 
To: Bud Rolofson <levilevi at comcast.net> 
Cc: triumphs <Triumphs at autox.team.net>, 6-Pack <6pack at autox.team.net> 
Subject: Re: [6pack] PDW Switch 
Message-ID: <8033DD84-6BE8-49C7-AC55-FABCAB57CE32 at yahoo.com> 
Content-Type: text/plain; charset="utf-8" 

Yes, and if it's the front braking system to let go, the rears alone is about equal to the Flintstone brakes! 
Dick 

> On Jun 1, 2017, at 1:25 PM, Bud Rolofson via 6pack <6pack at autox.team.net> wrote: 
> 
> The switch doesn?t actually (and was not intended to) seal anything in the PDWA, the o-rings on the barbells internally seal the fluid in the PDWA. Replace those and center the barbell and the switch should be fine. I have the o-rings (not the cupped version) for the PDWA, send me an address and I?ll mail you some. Oh and I would NOT eliminate the PDWA unless you have the worlds best emergency brake, and then even then probably not. 
> 
> Bud Rolofson 
> 
> Extreme Parts Racing (more than just a haircut) 
> 
> 71TR6 CC57365 (Good 6) 
> 71 Spitfire MK IV Race Car #3 
> 69 Spitfire MK III (back up FE engine/dinghy car) 
> 93 Minnie Winnie Race Support Vehicle 
> 77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike) 
> 
>> On May 31, 2017, at 3:40 PM, Alex&Janet Thomson via 6pack <6pack at autox.team.net> wrote: 
>> 
>> Lists ? I know I saw some discussion several months back about repairing/replacing the brake Pressure Differential Warning switch. Naturally, it was not an issue with me then and I didn?t save the responses. At any rate, there is brake fluid leaking out of the actual switch that screws into the PDW block. I noticed that Moss has new ones (aluminum) for $439 and repair kits for the older brass units (such as ours) for $13. Any thoughts on the best avenue to take? Has anyone simply eliminated the assembly and connected the brake lines with couplings, front-to-front and back-to-back? The subject is a ?73 TR6. Thanks. 
>> 
>> Alex Thomson 
>> _______________________________________________ 
>> Support Team.Net http://www.team.net/donate.html 
>> Suggested annual donation $12.96 
>> Archive: http://www.team.net/archive 
>> Forums: http://www.team.net/forums 
>> 
>> 6pack at autox.team.net 
>> http://autox.team.net/mailman/listinfo/6pack 
>> 
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/6pack/levilevi@comcast.net 
> 
> _______________________________________________ 
> Support Team.Net http://www.team.net/donate.html 
> Suggested annual donation $12.96 
> Archive: http://www.team.net/archive 
> Forums: http://www.team.net/forums 
> 
> 6pack at autox.team.net 
> http://autox.team.net/mailman/listinfo/6pack 
> 
> Unsubscribe/Manage: http://autox.team.net/mailman/options/6pack/taylorturbo6@yahoo.com 
> 
-------------- next part -------------- 
An HTML attachment was scrubbed... 
URL: <http://autox.team.net/pipermail/6pack/attachments/20170601/c5b181c4/attachment.html> 

------------------------------ 

Subject: Digest Footer 

_______________________________________________ 
6pack mailing list 
6pack at autox.team.net 
http://autox.team.net/mailman/listinfo/6pack 


------------------------------ 

End of 6pack Digest, Vol 32, Issue 2 
************************************ 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://autox.team.net/pipermail/6pack/attachments/20170602/f6953915/attachment.html>

More information about the 6pack mailing list