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my frnd has daewoo racer.its front wheels heat up very much.this problem persists from more
than a year.he replaced
brake leathers wid original one for 1500 rs.still heating.changed brake survay for 1000.
didnt give result.changed the
pipes going fron brake survey cylinder n changed thier point of application too.i mean one pipe to front wheel n rear wheel n 2nd pipe to the next front wheel n corresponding rear wheel.they r now in X sequence.still hetaing.then changed the rings of cylinder for 500rs but didnt work at all.the tyres air pressure is 30 n when it covers 10km the tyres start burning n a burning smell starts.
this car is shown to every mechanic but dont know whats the hell wid this.he changed the complete front set up i mean jo front may brakes rotors n shock ka jo lamba sa black pillar hota hay along wid the cylinders but still heating.if any expert solve this problem or give any decision so will b greatful.plz take it serious.
1 Answer
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than a year.he replaced
brake leathers wid original one for 1500 rs.still heating.changed brake survay for 1000.
didnt give result.changed the
pipes going fron brake survey cylinder n changed thier point of application too.i mean one pipe to front wheel n rear wheel n 2nd pipe to the next front wheel n corresponding rear wheel.they r now in X sequence.still hetaing.then changed the rings of cylinder for 500rs but didnt work at all.the tyres air pressure is 30 n when it covers 10km the tyres start burning n a burning smell starts.
this car is shown to every mechanic but dont know whats the hell wid this.he changed the complete front set up i mean jo front may brakes rotors n shock ka jo lamba sa black pillar hota hay along wid the cylinders but still heating.if any expert solve this problem or give any decision so will b greatful.plz take it serious.
Gari.pk User 7744 asked on 27 Aug 2010 10:14:25 am
1 Answer 
Maani - on 27 Aug 2010 10:14:37 amI am not familiar with Daewoo or for that matter servo brakes but Im pretty sure this would help.
The brake Master cylinder needs a bit of adjustment, thats it........
Btw do all four wheels go hot?? Im guessing the rears also start to heat up but are not checked much as the fronts are hotter......
Just ask ur mechanic to turn the setting on the actuating rod (the rod which goes into the master cylinder and acts as a piston for the fluid....) a little down ie it shud be a little OUT of the cylinder. Hope u follow.
The problem is being caused by a blocked 'compensating port' in th emaster cyl. This is a small hole which allows brake fluid to escape back into the reservoir.......when u apply brakes the brake fuid gets heated up n thus expands....simple physics.....the port allows the extra volume to flow back and thus prevents brake lockup which shows up as heated wheels.
Other causes of a blocked compensating port include very dirty brake fluid clogging up the said port and a couple of rare possibilities.
But the setting is the first thing to check and very easy to fix.
Best of luck!
Regards.
The brake Master cylinder needs a bit of adjustment, thats it........
Btw do all four wheels go hot?? Im guessing the rears also start to heat up but are not checked much as the fronts are hotter......
Just ask ur mechanic to turn the setting on the actuating rod (the rod which goes into the master cylinder and acts as a piston for the fluid....) a little down ie it shud be a little OUT of the cylinder. Hope u follow.
The problem is being caused by a blocked 'compensating port' in th emaster cyl. This is a small hole which allows brake fluid to escape back into the reservoir.......when u apply brakes the brake fuid gets heated up n thus expands....simple physics.....the port allows the extra volume to flow back and thus prevents brake lockup which shows up as heated wheels.
Other causes of a blocked compensating port include very dirty brake fluid clogging up the said port and a couple of rare possibilities.
But the setting is the first thing to check and very easy to fix.
Best of luck!
Regards.
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