squeeking sound from my bongo :(

Technical questions and answers about the Mazda Bongo

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glynreaper

squeeking sound from my bongo :(

Post by glynreaper » Mon May 21, 2007 10:33 am

Hiya all

I have noticed a squeeking sound coming from i think the front end. it tends to happen above 30mph its stops while i break and if i wobble the steering wheel. Could this be a wheel bearing. or something more sinister
How easy are they to replace?


Glyn
francophile1947
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Post by francophile1947 » Mon May 21, 2007 12:47 pm

If it stops when you brake, it may well be a lightly rubbing brake pad (often with a tiny bit of grit trapped between it and the disc) - it will also stop when you turn the steering wheel, if there is any play in your wheel bearing. Jack the relevant wheel up and spin it to check for rubbing. Grab the wheel at the top and bottom and try to rock it towards you to check for bearing play - any play should barely be detectable. If you can really feel the wheel rocking, the bearings need adjusting/replacing (sorry, I don't know if the Bongo ones are adjustable or not).
John
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Post by mikeonb4c » Mon May 21, 2007 1:01 pm

I agree wih franco (in case it helps to have two people agreeing). My old Nissan Sunny had the same problem. irritating, but harmless with any luck
glynreaper

irratating

Post by glynreaper » Mon May 21, 2007 1:05 pm

Well I dont mind irritating its not that noisey
what would be irritating is if it cost me a lot to fix.

Thanx for the advice I'll have a look tonight when i get home from work
glynreaper

Post by glynreaper » Wed May 23, 2007 10:30 am

Hi well i jacked her up, checked for play in the baring and its solid as a rock.
I can hear the pad binding against the disk as i revolve the wheel
Is this likely to cause problems? is there any way to free it up?
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Post by francophile1947 » Wed May 23, 2007 11:58 am

Pads always rub lightly against the disk - if wheel turns freely, you have no problem. Unlike brake pads, which are pulled off the drum by springs, there is nothing to pull pads off the disks.
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Post by mikeonb4c » Wed May 23, 2007 12:38 pm

Have the brakes been replaced / worked on lately. Were the calipers etc. cleaned at that time, coppaslip grease used, shims replaced as per removal. Are you able to undertake any of this yourself (not actually that difficult - I did my own recently and got a perfect result, first time I'd ever worked on a disc brake, so old am I).

You want it sorted as I remember how irritating it is (esp when travelling alongside a walled verge that reflects the sound right back at you!!).

Keep us posted & good luck

Mike 8)
glynreaper

Post by glynreaper » Wed May 23, 2007 1:14 pm

So you think its worth stripping down the caliper and copper slipping it

I have checked out the guide about changing pads an I think I could probably do it
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Post by francophile1947 » Wed May 23, 2007 3:20 pm

glynreaper wrote:stripping down the caliper
I hope you don't actually mean that! - coppaslip is only applied to the ends of the pad, where it runs in the caliper (plus a thin smear on the back of the pad). If the noise has just started, you may well find it will go again shortly. The pads are a composite material and you sometimes get a "hard" bit which can cause a squeak until it wears. If there is plenty of lining left, give it a couple of days before diving in.
John
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glynreaper

Post by glynreaper » Wed May 23, 2007 4:17 pm

Ah my breaks are squeaking so I oiled them :)


I didnt actually mean copper slip the bit where the pad touches the disk, I meant the mechanism, but if what you have just said is correct (about the hard patch) it may be worth leaving it a little while to see if it gets better with wear.
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Post by francophile1947 » Wed May 23, 2007 8:26 pm

Yeh - I wasn't too clear was I? :lol: :lol:
Stripping the caliper down involves removing the hydraulic piston(s) - not the greatest of jobs, and definitely not suitable for coppaslip.
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Post by mikeonb4c » Wed May 23, 2007 10:47 pm

All I was intending was that the obvious bearing surfaces and sliding parts etc. that present themselves when you change disc pads, will benefit from a clean up and a sparing application of coppaslip (which incidentally I knew naff all about until the folks at BF enlightened me). All I know is it worked for me! But you haveto be 'happy' that you can muck around with brakes and do it properly, for obvious reasons. BF folk will tell you just how much questioning I did before I actually attempted the job. Can't be too careful with brakes.

Mike 8)
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