2024 Canadian Poncho Calendars are Now Available! CLICK HERE

 

 

Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: 1967 distribution block (brakes) “FIXED”


Addicted!

Status: Offline
Posts: 497
Date:
1967 distribution block (brakes) “FIXED”


My light is on on my dash

I tried bleeding front and rear brakes light still on

I tapped it (the block) and the light on the dash went out for a few days 

came back on and has stayed on for a few weeks 

Can new distribution blocks be purchased?

There are no leaks ,brakes work fine.

It looks like a not fun job to switch it out

Any help or insight is appreciated 

I also realize the parking brake can light the light but thats not the source

Thanks

 

 



-- Edited by SGS Welding on Friday 3rd of September 2021 05:56:53 PM

__________________

67 Parisienne Convertible 

67 Parisienne 2 Door Hardtop 



Poncho Master!

Status: Offline
Posts: 2190
Date:
1967 distribution block (brakes)


Drum or disc brakes?  May make a difference for  parts.

Try flushing out all of the old brake fluid for a clean start.

Cliff



-- Edited by oshawacliff on Thursday 2nd of September 2021 12:24:50 AM

__________________

Cliff

Done Hurryin

Like the larger type for my eyes. 

 

 



Canadian Poncho Superstar!

Status: Offline
Posts: 7418
Date:

For my 70, the distribution blocks are the same whether it's 4 wheel drum or disc/drum. Also, the distribution block is different 69 to 70 (fitting for the line to the rear is different), so if you're replacing it you may need to determine whether it's specific to 1967. Somehow I've ended up with 2 NOS ones for my 1970.

__________________
70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



Addicted!

Status: Offline
Posts: 497
Date:

78C1C371-C109-45DC-A526-5014043632EE.jpeg

Drum Drum

I found this?

Does it look right?



Attachments
__________________

67 Parisienne Convertible 

67 Parisienne 2 Door Hardtop 



Canadian Poncho Superstar!

Status: Offline
Posts: 10063
Date:

As a last resort, do a full brake bleed. It's possible the rear system has some air present, causing enough of a pressure differential to trip the spool, but not enough that you'd feel it in the braking. 

I might be in the minority here Greg, but if you have good brakes, no leaks and you know you car well enough to recognize a braking issue, disconnect the lead from the block. If you'd never had the lines off the block, you could be in for an adventure getting them off and onto a replacement. Even with the possible transfer of fluid between the system seals tripping the switch, I can't see it ever being the source of any type of future brake failure.



__________________
65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


Addicted!

Status: Offline
Posts: 497
Date:

Yes pulling the wire seems like the fix for now

changing the block looks like a nightmare

this all happened after a normal reverse brake application

im wondering if there is dirt or a broken  spring inside the block?

seems Wierd it wont come unstuck? 



__________________

67 Parisienne Convertible 

67 Parisienne 2 Door Hardtop 



Canadian Poncho Superstar!

Status: Offline
Posts: 10063
Date:

 

Here's a image of a similar block to see the function of a failed front system. Like you said, maybe one of the two springs has given up the ghost.

You could attempt to remove the switch and to determine which way the spool has shifted. But it could just invite trouble.

brake.JPG



Attachments
__________________
65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


Uber Guru

Status: Offline
Posts: 3986
Date:

Is there a way to check the switch ? Perhaps it is no good.

__________________

Remember Fun,

 Remember Laughter ?



Canadian Poncho Superstar!

Status: Offline
Posts: 7418
Date:

65Camino wrote:

Is there a way to check the switch ? Perhaps it is no good.


 I'm guessing if the electrical terminal is providing a ground, the switch (brake distribution switch) is no good.



__________________
70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



Poncho Master!

Status: Offline
Posts: 1740
Date:

If your light is on and you hit the pedal as hard as you can with your heel and it goes out, then youve got air in the system or your master is bypassing fluid. In all the years Ive been pulling wrenches Ive yet to replace one of those blocks.

__________________

'68 Parisienne 2+2 Convertible Matador Red (Resale Red but not for sale).



Poncho Master!

Status: Offline
Posts: 1740
Date:

Oh. And also when trying to bleed you need to center that block (light out) before finishing bleeding. Or the one system is blocked off and cant bleed. If you have access to a vacuum bleeder you may have better luck.

__________________

'68 Parisienne 2+2 Convertible Matador Red (Resale Red but not for sale).



Poncho Master!

Status: Offline
Posts: 1685
Date:

JC2+2 wrote:

If your light is on and you hit the pedal as hard as you can with your heel and it goes out, then youve got air in the system or your master is bypassing fluid. In all the years Ive been pulling wrenches Ive yet to replace one of those blocks.


 I agree that the block is probably ok. In almost 50 years of pulling wrenches I have only changed two of those blocks. One was made of steel or cast iron and was leaking due to rust, I am in Ontario, the other was a proportioning valve type leaking out of the proportion valve section because of oil in the brake system. Some can be hard to centre after bleeding the brakes and I agree that there may be a bit of air or a master cylinder starting to bypass. 

Paul



__________________


Addicted!

Status: Offline
Posts: 497
Date:



FIXED IT!

If you look at Marks diagram the part called switch terminal is the head of a screw (philips or star)

The switch terminal was backed out a hair and touching the shaft of the perfectly centred pistons 

I gave the screw head half a turn and reinstalled the switch and dash light gone!

Thanks for everyones input it really did help me to search a little more before replacing parts!



__________________

67 Parisienne Convertible 

67 Parisienne 2 Door Hardtop 



Uber Guru

Status: Offline
Posts: 3986
Date:
1967 distribution block (brakes) “FIXED”


Great news !

__________________

Remember Fun,

 Remember Laughter ?



Canadian Poncho Superstar!

Status: Offline
Posts: 10063
Date:

Excellent. Glad you didn't have to undo those old lines!



__________________
65 Laurentian post, 67 Grande Parisienne 4 door HT. 
 


Addicted!

Status: Offline
Posts: 497
Date:

Me and you both Mark! LOL!!



__________________

67 Parisienne Convertible 

67 Parisienne 2 Door Hardtop 

Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.

Tweet this page Post to Digg Post to Del.icio.us
.
Support Canadian Poncho!
Select Amount:
<
.
.
.