problem with GQ brakes

Submitted: Sunday, Mar 16, 2003 at 21:18

ThreadID: 3880 Views:1535 Replies:7 FollowUps:4

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bozo

Has anybody got any ideas about whats going on with the brakes in my GQ? About six months ago the front calipers seized (both at the same time) and I replaced them with a second hand set. A few months before that the rears did the same thing, now the fronts have done the same thing again and I am starting to smell a rat. Have I just bought a dodgy set of front calipers or is something else going on to cause them to seize at the same time? HELP!

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Reply By: Bob Y. - Sunday, Mar 16, 2003 at 21:45

Sunday, Mar 16, 2003 at 21:45

Had a 79 series with front calipers playing up, Bozo, and it turned out the master cylinder was problem. The screw seperating front and rear bucket assemblies, was worn, and gave an intermittent seizing. New M/cyl. kit and no dramas. Worth a look. hooroo...

AnswerID: 15339

Follow Up By: bozo - Sunday, Mar 16, 2003 at 22:48

Sunday, Mar 16, 2003 at 22:48

That thought has crossed my mind bob, thanks for the info, I'll have a play.

FollowupID: 9340

Reply By: Suzuki Viagra - Sunday, Mar 16, 2003 at 23:10

Sunday, Mar 16, 2003 at 23:10

If you play on the beach that's the answer: otherwise
Do you have an Auto?
Do you ride the brakes?
Do you live in the tropics?

If you find them siezing a lot maybe you need to convert to dot 5 - bleed em all and start with Silicone fluid ask your local tyre and brake shop......

AnswerID: 15345

Reply By: Truckster - Monday, Mar 17, 2003 at 10:26

Monday, Mar 17, 2003 at 10:26

Could be bad luck, your driving style/area etc

I rebuilt my 4 GQ calipers 18 mths ago, one needs another kit in it..(Diesel auto, 33's, brakes get a good workout regularly, no sand work, fair bit of mud and crap)

The Genuine kits arent expensive (less than 1/2 the price of ABS), but I wouldnt go with second hand calipers, you never know what your getting, speciall from wreckers... I would either get them rebuilt, or buy NEW ones...

And we both know neither of us could afford Nissan prices on NEW calipers!!

AnswerID: 15354

Reply By: desert - Monday, Mar 17, 2003 at 18:49

Monday, Mar 17, 2003 at 18:49

Bozo, how often do you change your brake fluid? I would suggest every 2 years, especially if you are doing a lot of 4x4ing in high altitudes (ie high country) or tropics that involve an atmosphere with a high humidity.

AnswerID: 15391

Follow Up By: bozo - Monday, Mar 17, 2003 at 20:22

Monday, Mar 17, 2003 at 20:22

Thanks guys, am going to start with a fluid change and clean out the master cylinder, you never know your luck otherwise I'll rebuild the calipers. Thanks for your help Truckster and Desert.

FollowupID: 9373

Follow Up By: Truckster - Monday, Mar 17, 2003 at 23:50

Monday, Mar 17, 2003 at 23:50

on the caliper kits, its the other way round, priced them today while on the phone... nearly had convulsions.

FollowupID: 9388

Reply By: diamond - Monday, Mar 17, 2003 at 21:57

Monday, Mar 17, 2003 at 21:57

i know it sounds like a pain in the but i was having trouble with my rear calipers siezing just recently but have rebuilt a few for customers mainly r/h/r buy a full set of rebuild kits cost about $15 from repco dosnt come with piston but never had to replace one yet change brake fluid and every time you service it or get it serviced just apply a little grease to the slides.

AnswerID: 15415

Reply By: Eric - Tuesday, Mar 18, 2003 at 00:58

Tuesday, Mar 18, 2003 at 00:58

Bozo.
There is an adjustment on the length of the push rod between the booster and the master cylinder, if this not correctly set you can have a residual pressure in the lines which can cause a similar effect. Eric.

AnswerID: 15458

Follow Up By: bozo - Tuesday, Mar 18, 2003 at 20:02

Tuesday, Mar 18, 2003 at 20:02

Thanks for all the help guys, just changed the fluid and greased the slides with no luck (didn't think it would work) so I've had enough, I'm going to rebuild the calipers and the master cylinder this weekend.

FollowupID: 9421