Topic: Son of a Brake Booster!
in Forum: C3 Engines, Driveline and Handling
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AAAAAAAAAAAAHHHHHHHHH!!!!!!!!!!!!!!!!!!!!!!!!!!!
Phew... spent the best part of two days TRYING to replace my power brake booster.
AAAAAAAAAAAAHHHHHHHHHHHHHHHH!!!!!!!!!!!!!!!!!!!
What a ROYAL pain in the buttocks. It looks easy enough, right? Just unplug the vacuum line, pull out the master cylinder. And then undo the four teeny tiny nuts that hold it to the firewall! Oh, and disconnect it from the pedal.
There are times when I feel a 3-year old can engineer a car better than the GM monkeys that put our cars together, and the brake booster is one of them! There is ABSOLUTELY NO access to those 4 stupid nuts! You have to take the stinkin dash off! I managed to just loosen the dash, and pull it forward, and then contort myself underneath the dash and get to them with a billion extensions and god knows what. ALL they had to do was to put a little panel at the top of the firewall that could get to those nuts, then I wouldn't be venting on here! Worse yet, I managed to get those four nuts off, but now the cursed thing won't come off the pedal...
boo hoo....
okay, now I can sleep, thanks!
Imran - 74 Convt
Phew... spent the best part of two days TRYING to replace my power brake booster.
AAAAAAAAAAAAHHHHHHHHHHHHHHHH!!!!!!!!!!!!!!!!!!!
What a ROYAL pain in the buttocks. It looks easy enough, right? Just unplug the vacuum line, pull out the master cylinder. And then undo the four teeny tiny nuts that hold it to the firewall! Oh, and disconnect it from the pedal.
There are times when I feel a 3-year old can engineer a car better than the GM monkeys that put our cars together, and the brake booster is one of them! There is ABSOLUTELY NO access to those 4 stupid nuts! You have to take the stinkin dash off! I managed to just loosen the dash, and pull it forward, and then contort myself underneath the dash and get to them with a billion extensions and god knows what. ALL they had to do was to put a little panel at the top of the firewall that could get to those nuts, then I wouldn't be venting on here! Worse yet, I managed to get those four nuts off, but now the cursed thing won't come off the pedal...
boo hoo....
okay, now I can sleep, thanks!
Imran - 74 Convt

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DOWNINGTOWN, PA - USA
Joined: 11/24/2001
Posts: 962
Vette(s): 1969 Monza Red Black Conv / Black Vinal hardtop
454/480 Tremec 5 Speed 308 Posi.Black Leather Interior, PS, PW, Air cond., tilt/tele,AM/FM Cass.-5 Pack CD, Hurst Shifter, side pipes
2004 Yellow convertible with black top and black interior
I have on occassion thought about replacing my stock booster with a chrome plated one just for "dressup". Thanks for the post, you made up my mind not to do it !
Do NOT do it unless you absolutely have to. It took me close to three days of back-bending, knuckle scratching, PB-Blaster in my eye fun!
But it should be easy if you have the interior out
But it sure solved my brake problems, and now I feel like I can almost stop on a dime. Just need to bleed and replace the oil-soaked brake pads...
Imran - 74 Convt
But it should be easy if you have the interior out

But it sure solved my brake problems, and now I feel like I can almost stop on a dime. Just need to bleed and replace the oil-soaked brake pads...
Imran - 74 Convt

I am planning to do this. Now that you have completed it, do you have ny suggestions on how to make this job faster?

HOWELL, NJ - USA
Joined: 5/18/2004
Posts: 6812
Vette(s): 1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.
A year or two from now, this will be a ribbon on your C3 badge of honor. It's a PITA at the time, but in the end, its all good!!

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Manteca, CA - USA
Joined: 11/20/2005
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Vette(s): 1978,two tone,Metalic Rootbeer & gold
1975 L48 4 speed
https://www.c3vr.com/forum/forum_posts.asp?TID=71390&title=brake-booster-removal
Here's a post from the archives. Hope it helps.
Jimmy B.
Just can't wait to get on the road again.
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in Forum: C3 Engines, Driveline and Handling
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