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Post by mudgrip4 on Jun 16, 2006 9:17:30 GMT 11
Have been trying to find cause of a back end rattle for months - sounds like a spanner tapping on the towbar esp when going over uneven country. My mechanic says it is an anti chatter clip missing from rear brake pad setup.
Asked SafeRbrakes this morning but they don't have them for Isuzu. Does anyone know this problem and cost to replace. James suggests it may just be a matter of proper adjustment. Any experience on this?
Mike
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Post by geeves on Jun 16, 2006 12:26:45 GMT 11
It looks like a stainless steel shim the same shape as the brake shoe but with a shape to hold it to the shoe. Unlikly to be available non genuine so second hand or holden dealer. There are more for brake squeal cause by a high speed chatter under braking So I doubt this is your problem but its hard to diagnose noise from a keyboard
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Post by mudgrip4 on Jun 16, 2006 12:47:08 GMT 11
Spoke with Isuzu agent and he says can only supply shim with genuine pads for which they charge about $150 ex Japan. Suggested I get some CRC Brake Quiet ($13 trade Repco) which is a sticky compound you spray on the back of the brake to quieten the clatter. Might try this plus a bit of adjustment.
Mike
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Les
Isuzu Baby
Posts: 28
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Post by Les on Jun 16, 2006 17:55:36 GMT 11
hey Mike if the adjustment in the calipher for the hand brake isnt right you will get that chatter also may be worth checking out if you dont have any luck let me know i will be over your way second week of next month more than happy to check it out for you
cheers Les
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Paaji
Isuzu Senior
94 3.1 Auto
Posts: 172
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Post by Paaji on Jun 28, 2006 1:05:38 GMT 11
Sounds silly, but make sure it isn't your exhaust rattling on the towbar or crossmember.
Mine does this on rough ground very badly - 2.5" pipe routed up high.
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Post by 1logger on Jun 28, 2006 16:51:29 GMT 11
hi mike
check with your brake shop there are stick on silencers for the back of the pads that may help other than that I will see if i have any anti squeal shims at work .
I wouldnt think pad squeal would sound like a spanner tapping on towbar what is your isuzu ? i have a mu with pad squeal on cold mornings in reverse which i should attend to as neighbours must be sick of it by now . I call it my anti theft warning system.
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Post by mudgrip4 on Jun 29, 2006 9:18:40 GMT 11
Thanks for thoughts guys-
Had another look at it last weekend and the shoe shaped shims are still there. Also adjusted the handbrake up to check this out but rattle still there. Exhaust pipe at rear ok but did find and reweld a broken mount in front. Had caused a bit of frontal vibration but not rear rattle
Even with caliper bolt fairly tight still a rattle and not something anti squeal will fix. I know that reversing brake noise - hear it many a morning! Looked at exploded diagram of brakes and from memory the main tightening bolt seems to pass through a nylon part like a spacer or bush - inside the caliper. Mechanic and I thought this might be worn out and causing slop. Tried to get new ones but nothing available from Isuzu people - except in new caliper kit. We will take caliper apart again this weekend and see if can get it out to check and maybe make something to fit better if needed. Pumped a fair amount of grease in there and that has quietened it a bit temporarily.
thanks again, Mike
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Post by James W on Jun 29, 2006 12:51:38 GMT 11
"I know that reversing brake noise"
.... the Isuzu mating call....
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Post by geeves on Jun 29, 2006 16:39:43 GMT 11
The caliper kit is available from BNT and not too bad in cost 2 years ago I bought the kit to get the boots for the slides on mine Only 70ish for both sides. Kept the rest of the kit untill the calipers needed a rebuild last year.
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Post by mudgrip4 on Jul 1, 2006 12:00:30 GMT 11
Brake caliper rattle is now fixed - a bit of kiwi ingenuity from my club mechanic. A bolt each side holding caliper together runs through a metal sleeve which in turn sits inside a plastic tubular bush - this bush was worn thin and allowing slop and movement even when bolt was tight. This bush unavailable, so mechanic took out metal sleeve and put thin streaks of weld along it, right around sleeve - then ground weld down until the metal sleeve measured about 1mm extra diameter from what it was before. Plenty of grease, refitting, and it works perfectly both sides.
The second (smaller?) bolts on each side were in better shape - less slop. Put heavy tape around one plus grease and refitted. The other side already had slightly bigger diameter bolt in it - probably to fix this problem - and was fine.
Result = not a sound now and brakes work perfectly - one hours work. Thank heavens for kiwi mechanics - and club mates rates!
Now, if I can only get that b****y clutch issue solved...
Mike.
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Post by mudgrip4 on Jul 3, 2006 9:51:48 GMT 11
...and then I took it for spin in riverbed yesterday and what happens.....clatter clatter clatter from back end. #*$**!#. Not as bad but still there. What the....!
I give up... At least the clutch dried out yesterday....
Bighorn for sale? Many extras. Interesting condition.
Mike
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Post by geeves on Jul 3, 2006 10:57:02 GMT 11
Just a thought it sounds silly but Ive had this. Is your number plate loose? Also try it with no gear in the back You might be suprised
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Post by geeves on Jul 3, 2006 16:10:15 GMT 11
A couple of more thoughts Spring or shock bushes or stone between fuel tank and gaurd.
Its very hard to track down noises in a stn wagong type body as the noise reverbrates all round the place.
You might have to climb underneath and shake everything you can get your hands on till somthing moves.If your cars anything like mine I recomend wearing safety goggles and a dust mask
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Paaji
Isuzu Senior
94 3.1 Auto
Posts: 172
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Post by Paaji on Jul 3, 2006 17:50:15 GMT 11
Another odd rattle I've found is the top mounting for the rear seatbelts...
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Post by mudgrip4 on Jul 4, 2006 14:29:14 GMT 11
Noise is much less now - pretty much nil on road but starts up off road. I have removed the tank protector plate several times, mainly to hammer out dents. Did so recently and also put a bit of fibreglass matting between plate and bottom of tank to stop contact and abrasion when plate ented. Removed many stones.. and yes have also solved many a suspicious rattle by rearranging contents of toolbox.
I will find the remaining clatter eventually, but like many other nuisances noises it may also just disappear when I smack the next rock and rearange the chassis geometry a wee bit. Cures many a fault...
mike
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