Your donations help keep this valuable resource free and growing. Thank you.
|
Power Brake Bellcrank link question and need |
Post Reply |
Author | |
thmil
AMC Apprentice Joined: Aug/18/2008 Location: California Status: Offline Points: 127 |
Post Options
Thanks(0)
Posted: Jul/30/2021 at 3:18pm |
Hello AMC Forum, I had originally posted this in parts wanted section. After some guidance from Midnight Rambler to check out post, I thought I should post here too.
I am in need of a solution of which I think is addressed in the above post. What I think I need is the LINK that goes from power brake bellcrank to brake pedal. It's part No. 8.420-1 in the 67-72 AMC Parts Book. I would have expected to also see more diagrams on the next page of the parts book, but it is blank. I think there are two different link lengths, I THINK I need the longer "J" shaped one. The one I have is straight and doesn't connect with the pedal. A photo is attached of what is in the parts book. I need it for my 1967 American six cylinder automatic. The car was converted from straight drum brakes with no booster to Scarebird front disk, new Bendix MC, New Cardone booster, and bracket (from an IH Scout). Before my repaint and new interior, I had been driving it with an unsafe link I made at home from a piece of metal. It's been some time since I set this up and forget why I modded it like this, but it worked. Midnight Rambler suggested that the problem is due to the IH Scout bracket. That could be true, with the body support interfering easy placement, I have to wrestle like heck to get the bracket/booster bolted to the firewall. However, that would mean that my bracket is too long already, effectively shortening the length of bracket to pedal link distance. Thus the need for a longer link. Also, as I have and Midnight Rambler has also proven, because the new master cylinder does not have the same boss for the brake light switch, so a hokey push switch needs to be rigged up. How else can the brake light switch activated with the power brake/disk setup? Thank you and please pass on any helpful leads. Tim |
|
thmil
1967 American Rogue Convertible |
|
Midnight Rambler
AMC Addicted Joined: Jan/17/2011 Location: SoCT Status: Offline Points: 1670 |
Post Options
Thanks(0)
|
The brake lights might be more easily solved by changing to a MC that accepts a pressure switch. My '66 is set up that way. I'll try to take some better pictures of the switch on the '67-'69 pedal set I have so you can see what you're dealing with.
|
|
'66 American 440 Convertible 290/M-40/AMC 20 3.15/PS/PB '04 Jeep Wrangler X Rocky Mountain Edition 4.0 5sp |
|
6PakBee
Supporter of TheAMCForum Charter Member Joined: Jul/01/2007 Location: North Dakota Status: Offline Points: 5454 |
Post Options
Thanks(0)
|
If you are reasonably handy it's not a big deal to fabricate a bracket and add a switch. I did that to my '72 Dodge pickup on the clutch pedal when I installed cruise control.
|
|
Roger Gazur
1969 'B' Scheme SC/Rambler 1970 RWB 4-spd Machine 1970 Sonic Silver auto AMX All project cars. Forum Cockroach |
|
Midnight Rambler
AMC Addicted Joined: Jan/17/2011 Location: SoCT Status: Offline Points: 1670 |
Post Options
Thanks(0)
|
|
|
'66 American 440 Convertible 290/M-40/AMC 20 3.15/PS/PB '04 Jeep Wrangler X Rocky Mountain Edition 4.0 5sp |
|
Midnight Rambler
AMC Addicted Joined: Jan/17/2011 Location: SoCT Status: Offline Points: 1670 |
Post Options
Thanks(0)
|
The pedal set is upside down so you can see the switch. The pedals
are in the "resting" position, the switch button is depressed by the
pedal arm with your foot off the brakes, so it's a demand switch that is
closed when resting and open when depressed. The
next pic you can see the bracket and attachment point. Looks like it
would be easy to fabricate something as 6PakBee mentioned. |
|
'66 American 440 Convertible 290/M-40/AMC 20 3.15/PS/PB '04 Jeep Wrangler X Rocky Mountain Edition 4.0 5sp |
|
Midnight Rambler
AMC Addicted Joined: Jan/17/2011 Location: SoCT Status: Offline Points: 1670 |
Post Options
Thanks(0)
|
The issue with the pushrod and IH bracket might be resolved with an aftermarket adjustable one.
|
|
'66 American 440 Convertible 290/M-40/AMC 20 3.15/PS/PB '04 Jeep Wrangler X Rocky Mountain Edition 4.0 5sp |
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |