Author Topic: Drum to disc conversion-pedal stop  (Read 515 times)

ko-lek-tor

  • Hero Member
  • *****
  • Posts: 1680
  • someday I'll get one finished
    • View Profile
Drum to disc conversion-pedal stop
« on: August 08, 2019, 12:51:39 PM »
I am needing a definitive answer, please. Doing a J52 conversion. Using all GM pieces. I installed the striker on the pedal correctly. Adjusted the switch. The pedal does not rest on the rubber bumper any longer. It is about 1/4” away. Thought to myself , I’ll adjust the rod / clevis. Then I read this from a “Camaros.net” post, Nov. 30th 2015, quoting respected Camaro tweaker, David Pozzi, saying, “The photo above is mine. My camaro was converted from manual brakes to power brakes. The mechanic failed to remove the bumper. Normal power brakes do not use the rubber bumper, the power booster controls pedal movement to the rear.” Replying to pic of up under a dash.
The OP was wanting to know if the brake light striker became the “stop”?
When I dis assembled my 69 SS, I noted that there was no rubber stop on the brake pedal.
I am hoping someone, here, can elaborate on the following:
1) should the rubber stop not be there, meaning should I remove it?
2) if it should not, as Pozzi and my own car’s evidence suggest, then how is the pedal height set?
Basically, should I leave my pedal height were it is ( about 1/4” away from rubber stop)? Pedal seems to have adequate height?  Maybe a few pics from original cars would help. Just trying to get it right.
It seems to me, if I did adjust the pedal to touch the stop, I would not have enough clearance to mount the brake switch.
Note the setup being used was a complete untouched J52 removed from an operable donor car that was converted to a pro touring.
James to strangers, Bentley to friends
1969 SS/RS 396 coupe Hugger Orange X22 712 owned since 79
1969 SS 350 coupe LeMans Blue 713 bought in 79(sold)
1969 D.H.COPO replica 4spd. 4.10 posi coupe Daytona Yellow 711 owned since 85

Mike S

  • Hero Member
  • *****
  • Posts: 2445
    • View Profile
Re: Drum to disc conversion-pedal stop
« Reply #1 on: August 08, 2019, 01:24:53 PM »
I just checked both my 67's (one restored and one unrestored) with J50 power booster and J52 discs.
 Neither have the rubber bumper installed. On both cars the brake switch limits the upward travel.
 I only see the bumper mentioned with J52 in the AIM but it shows no booster in the picture.

Hope this helps.
Mike
67 04B LOS SS/RS L35 Hardtop - Original w/UOIT
67 05B NOR SS/RS L35 Convertible - Restored

ko-lek-tor

  • Hero Member
  • *****
  • Posts: 1680
  • someday I'll get one finished
    • View Profile
Re: Drum to disc conversion-pedal stop
« Reply #2 on: August 08, 2019, 05:27:42 PM »
Mike, I should have indicated it was a 69. But us 69 owners assume that 69 is the only year Camaro made, lol (kidding). I don’t know what is the norm for 67-8s. Probably the same? Thanks for the efforts and reply.

Oh, and doing some remodeling on the house and have misplaced my AIM  :(
James to strangers, Bentley to friends
1969 SS/RS 396 coupe Hugger Orange X22 712 owned since 79
1969 SS 350 coupe LeMans Blue 713 bought in 79(sold)
1969 D.H.COPO replica 4spd. 4.10 posi coupe Daytona Yellow 711 owned since 85

ko-lek-tor

  • Hero Member
  • *****
  • Posts: 1680
  • someday I'll get one finished
    • View Profile
Re: Drum to disc conversion-pedal stop
« Reply #3 on: August 10, 2019, 09:50:48 AM »
No 69 disc brake cars on the site? No Z28s? No Super Sports? Thought this was a Camaro site?
James to strangers, Bentley to friends
1969 SS/RS 396 coupe Hugger Orange X22 712 owned since 79
1969 SS 350 coupe LeMans Blue 713 bought in 79(sold)
1969 D.H.COPO replica 4spd. 4.10 posi coupe Daytona Yellow 711 owned since 85

janobyte

  • Hero Member
  • *****
  • Posts: 1407
  • Before it was called Day 2 !
    • View Profile
Re: Drum to disc conversion-pedal stop
« Reply #4 on: August 12, 2019, 11:22:54 PM »
Figure it out?
68 Z/28  born with: 302, drive line, etc..

ko-lek-tor

  • Hero Member
  • *****
  • Posts: 1680
  • someday I'll get one finished
    • View Profile
Re: Drum to disc conversion-pedal stop
« Reply #5 on: August 13, 2019, 12:06:41 AM »
Figure it out?
Thanks for the reply Steve. Beginning to think I was a leper and being shunned, lol. I had it pretty much figured out, wanted a little assurance or confirmation.
James to strangers, Bentley to friends
1969 SS/RS 396 coupe Hugger Orange X22 712 owned since 79
1969 SS 350 coupe LeMans Blue 713 bought in 79(sold)
1969 D.H.COPO replica 4spd. 4.10 posi coupe Daytona Yellow 711 owned since 85

janobyte

  • Hero Member
  • *****
  • Posts: 1407
  • Before it was called Day 2 !
    • View Profile
Re: Drum to disc conversion-pedal stop
« Reply #6 on: August 13, 2019, 01:46:43 AM »
👍
68 Z/28  born with: 302, drive line, etc..

JKZ27

  • Hero Member
  • *****
  • Posts: 548
    • View Profile
Re: Drum to disc conversion-pedal stop
« Reply #7 on: August 18, 2019, 11:24:35 AM »
FWIW, my 69 SS has no rubber bumper.
John
69 RS/SS Cortez Silver, L48 MC1
68 RS Ash/Ivy Gold 327EFI M20