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Brake pedal question #1691693
10/28/14 03:45 PM
10/28/14 03:45 PM
Joined: Apr 2007
Posts: 4,233
petaluma,ca. u.s.a.
west Offline OP
master
west  Offline OP
master

Joined: Apr 2007
Posts: 4,233
petaluma,ca. u.s.a.
I restored a 72 dart and the brakes work fine but the pedal can be lifted up high enough to disengage the push rod. I'm concerned a large bump in the road or my shoelaces may pull the pedal upward while driving. Is there a bump stop or a spring that I have overlooked?

Re: Brake pedal question [Re: west] #1691694
10/28/14 04:03 PM
10/28/14 04:03 PM
Joined: Jan 2003
Posts: 32,882
Grand Prairie,Texas
stumpy Online content
I Win
stumpy  Online Content
I Win

Joined: Jan 2003
Posts: 32,882
Grand Prairie,Texas
Push rod should have a rubber ring around the end that goes into the booster or master that locks it in.

Re: Brake pedal question [Re: stumpy] #1691695
10/28/14 04:06 PM
10/28/14 04:06 PM
Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
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Posts: 25,618
Rio Linda, CA

Even without the push rod retainer the brake light switch should limit the pedal's up travel.


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Re: Brake pedal question [Re: John_Kunkel] #1691696
10/28/14 04:34 PM
10/28/14 04:34 PM
Joined: Jan 2003
Posts: 21,050
Niles , Ohio
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therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
T

Joined: Jan 2003
Posts: 21,050
Niles , Ohio
John you can still lift it high and bend the arm the switch is on.I know I did it on ny 65 once playing with the pedal.I had to bend the SL arm back down.Rocky


Chrysler Firepower
Re: Brake pedal question [Re: therocks] #1691697
10/28/14 08:47 PM
10/28/14 08:47 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
1st order of business is to check if the MC rear piston tapered "thimble" recess has the recess halfway down for the neoprene retainer to lock into & that that piece is on the pushrod. If no recess then that is a PB MC. Eberg said if that is your situation then lock it (the pushrod) in with RTV which sounds scary at first blush but if Eberg is OK with it then it's good enough for me


live every 24 hour block of time like it's your last day on earth
Re: Brake pedal question [Re: RapidRobert] #1691698
10/28/14 09:11 PM
10/28/14 09:11 PM
Joined: Apr 2007
Posts: 4,233
petaluma,ca. u.s.a.
west Offline OP
master
west  Offline OP
master

Joined: Apr 2007
Posts: 4,233
petaluma,ca. u.s.a.
It is a manual m/c. Is the neoprene retainer available at Napa? Thanks.

Re: Brake pedal question [Re: west] #1691699
10/28/14 09:18 PM
10/28/14 09:18 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
You about to get a rebuilt MC to get a tailor made one but have the counter guy at your parts house cut a snip of vac line the same length as the machined recess at the end of the pushrod. They are virtually identical & will safely function fine. I forget the dia but just give him the pushrod & have him go back & use the roll of line that is a tight fit on the round nub (you only need a fraction of an inch for length). Cut a slight groove in it lengthwise end to end on the outside for air to excape as it locks into the piston blind hole for a good secure fit


live every 24 hour block of time like it's your last day on earth
Re: Brake pedal question [Re: RapidRobert] #1691700
10/28/14 09:55 PM
10/28/14 09:55 PM
Joined: Apr 2007
Posts: 4,233
petaluma,ca. u.s.a.
west Offline OP
master
west  Offline OP
master

Joined: Apr 2007
Posts: 4,233
petaluma,ca. u.s.a.
I think I'm set. Thanks for the help.







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