Problem with new Brake Booster Install - Help
Thread Starter
Instructor
Joined: Jan 2005
Posts: 236
Likes: 0
From: Hudson FL
Problem with new Brake Booster Install - Help
I just unstalled a new Brake Booster on my 1994 Polo 6spd coupe. It seemed fine upon testing the brakes yesterday. But today It seems that the brakes are dragging. Upons checking the brakes they are heating up more then normal and I can feel drag by testing car in nuetral on incline.
Is there an adjustment on the booster and how do I adjust? Dont want to wreck my pads and rotors?
Is there an adjustment on the booster and how do I adjust? Dont want to wreck my pads and rotors?
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by TimV SR
Pull the master cylinder loose and adjust the shaft on the booster.
The brakes aren't able to release fully if there's not a bit of freeplay in it. The longer you drive and use the brakes, the more residual pressure is built up causing the dragging.
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
Just responded to another post about boosters. The rod is adjustable-it's sounds like it is adjusted to LONG.That was my experience.It's a threaded rod, you need to back it off some-I haven't checked and don't know if a length is published-but have experienced the exact same thing.I do believe there is a measurement for the pedal though.
Melting Slicks
Joined: Feb 2005
Posts: 2,135
Likes: 0
From: Sebastian Florida
St. Jude Donor '06
If you look on your install instructions, there should be a piece about adjusting the brakes.
if not, I can give you some help.
Take off the master cylinder from the booster and pull it away from the booster.
You will see a bolt going into the booster, it will have a nut on it to keep it from turning.
put a wrench on the bolt to hold it and another on the nut and loosen the nut.
From there I don't remember which way you need to turn the bolt, I think I turned mine counter clockwise about 2-3 turns.
Someone else will know for sure.
Good luck!!
if not, I can give you some help.
Take off the master cylinder from the booster and pull it away from the booster.
You will see a bolt going into the booster, it will have a nut on it to keep it from turning.
put a wrench on the bolt to hold it and another on the nut and loosen the nut.
From there I don't remember which way you need to turn the bolt, I think I turned mine counter clockwise about 2-3 turns.
Someone else will know for sure.
Good luck!!
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Le Mans Master
Joined: May 2005
Posts: 7,355
Likes: 2,280
From: Central Maryland
Originally Posted by fjm59vette
OK - I'll pull the MC and try and adjust it and see if I can adjust the rod.
Thanks
Thanks
The booster should have come with instructions about how to measure/adjust the rod. If not, set it to the same length as the booster you removed, and it should come out about right.
Be well,
SJW
Thread Starter
Instructor
Joined: Jan 2005
Posts: 236
Likes: 0
From: Hudson FL
Adusted the Booster Rod bolt - it took two trys but, all is well.. Brakes stopping great, no drag, brake lights work and so does cruise control.
Im sure thats about $300-$500 saved by doing the Brake Booster myself.
Thanks everyone for all your help.
FJM
Im sure thats about $300-$500 saved by doing the Brake Booster myself.
Thanks everyone for all your help.
FJM
