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brake trouble

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Offline zook trouble

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brake trouble
« on: March 02, 2008, 03:27:40 AM »
Help!!! My name is Jim, I'm in Canada. I have a 91 zuk, Ever since I put an 89 carburated motor in it the brakes keep building pressure. I've already changed the master cylinder, booster , all calipers and wheel cylinders with no success. The strangest part is if you shut it off while moving, it back fires then releases. At my wits end with this one, thought I might find fresh insight here.Any ideas will be extremely appreciated!!!
Thanx Jim
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Offline Baloo

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Re: brake trouble
« Reply #1 on: March 04, 2008, 02:00:06 PM »
vacuum leak to the booster?
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Offline zook trouble

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Re: brake trouble
« Reply #2 on: March 06, 2008, 03:16:47 PM »
all new vacuum lines too. but thanx for tryin you were the first to give it a crack.Lookin like maybe I'll have to start replacing everything again.
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Offline deplin

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Re: brake trouble
« Reply #3 on: March 06, 2008, 03:21:20 PM »
By building pressure, what exactly do you mean.  Is the brake pedal hard as a rock or are you saying that the brakes are dragging.  Add a little more detail and I may be able to help.  Was your last engine carburated or fuel injected.  Is the new engine stock or does it have a wild cam?
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Offline mrfuelish

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Re: brake trouble
« Reply #4 on: March 06, 2008, 07:41:27 PM »
Are ya thinking not enough free play on the master cylinder.
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1987,1988,1988,1990 samurai's,  1953 m38a1,  1996 x-90,blue.1996 x-90 red.1994 2 door tracker.   only Dead Fish go with the flow.                No Hairy Nosed Wombats were ran over on the trail today.       My ZUK is Xenophobic.
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Offline deplin

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Re: brake trouble
« Reply #5 on: March 06, 2008, 08:12:10 PM »
I am thinking that he is saying that it keeps bleeding vacuum and is possibly getting a hard pedal.  Maybe the engine is making enough vacuum.  He needs to answer my questions from above as to what the real problem is.
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Offline zook trouble

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Re: brake trouble
« Reply #6 on: March 07, 2008, 02:34:29 PM »
Yes it's building pressure , and yes the peddle gets hard, no fancy cam in it it's completely stock other than the Hyundai carb. And if you shut it off while moving it literally shoots a flame a foot out the tail pipe b4 they release. Any ideas are appreciated.
Thanx Jim
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Offline zook trouble

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Re: brake trouble
« Reply #7 on: March 07, 2008, 03:21:39 PM »
Quote from: deplin on March 06, 2008, 03:21:20 PM
By building pressure, what exactly do you mean.  Is the brake pedal hard as a rock or are you saying that the brakes are dragging.  Add a little more detail and I may be able to help.  Was your last engine carburated or fuel injected.  Is the new engine stock or does it have a wild cam?
stock cam , brake peddle is hard+ brakes are sticking, the strange thing is it doesn't do it all the time
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Offline Element

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Re: brake trouble
« Reply #8 on: March 07, 2008, 03:28:24 PM »
If you fix the brakes will you lose the flames out the tail pipe?
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Jerry                                                               Member since:   May 14, 2006


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Offline zook trouble

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Re: brake trouble
« Reply #9 on: March 07, 2008, 05:08:08 PM »
Quote from: Element on March 07, 2008, 03:28:24 PM
If you fix the brakes will you lose the flames out the tail pipe?
[/quot Yup, they're not really that cool when accompanied by the big bang anyway.
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Offline Element

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Re: brake trouble
« Reply #10 on: March 07, 2008, 05:27:13 PM »
I bet...
I have seen aftermarket kits for "flame throwers".
Well good luck on the fix!!!
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Jerry                                                               Member since:   May 14, 2006


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Offline deplin

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Re: brake trouble
« Reply #11 on: March 07, 2008, 06:56:25 PM »
Have you checked the vacuum that the engine is producing when the concern is occuring? 
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Offline zook trouble

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Re: brake trouble
« Reply #12 on: March 08, 2008, 04:16:12 AM »
Quote from: deplin on March 07, 2008, 06:56:25 PM
Have you checked the vacuum that the engine is producing when the concern is occuring? 
haven't got a vacuum guage, its on the list for this weekend's trip to princess auto. Whats your train of thought?
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Offline mrfuelish

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Re: brake trouble
« Reply #13 on: March 08, 2008, 10:39:04 PM »
When they get hot and stick, pop the hood and loosen the two nuts on the master cylinder and pull it forward a little and see if the brakes release.
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1987,1988,1988,1990 samurai's,  1953 m38a1,  1996 x-90,blue.1996 x-90 red.1994 2 door tracker.   only Dead Fish go with the flow.                No Hairy Nosed Wombats were ran over on the trail today.       My ZUK is Xenophobic.
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