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Unread 04-15-2013, 04:33 PM   #1
31matthew
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1983 CJ7 
 
Join Date: Aug 2009
Location: South Carolina
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From manual brakes to power brakes

I have a 83 cj7 with a 6 cyl and I just finished my conversion to power brakes but there seems to be a problem. I purchased a complete kit from eBay and ran all my lines and bled out all the air. On my test drive I discovered the brakes are not much better than manual. I used the vacuum port on the back of the carb. It is a holly 2 bbl. With the jeep running, I pulled the line from the booster and I am getting plenty of vacuum but the pedal is hard as a rock while driving. I don't know much about brake systems, am I not doing something right?

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Unread 04-15-2013, 04:50 PM   #2
skizriz
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1978 CJ7 
 
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Get your vacuum straight off of the manifold for the brakes. A dedicated line to the brakes only. I believe it's 3/8 hose.
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78 CJ7 258 TH400/Dana18 SOA/stock YJ springs 35" General Grabbers.
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Unread 04-15-2013, 05:55 PM   #3
31matthew
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I have been looking at some pictures and it appears I have the bracket and booster upside down. Will this make a difference.?
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Unread 04-15-2013, 06:09 PM   #4
skizriz
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I don't think there is anything in the booster that would cause a problem, but have never seen one upside down before.

Having the bracket upside down may cause alignment problems with the push rod.
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78 CJ7 258 TH400/Dana18 SOA/stock YJ springs 35" General Grabbers.
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Unread 04-15-2013, 06:57 PM   #5
31matthew
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Well here you go.
20130415_202120.jpg  
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Unread 04-15-2013, 07:15 PM   #6
keith460
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Quote:
Originally Posted by 31matthew View Post
Well here you go.
Yeah, that looks to be upside down for a CJ brake booster bracket.

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Restoration Thread:http://www.jeepsunlimited.com/forums...d.php?t=434226
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