Banging noise when braking

General discussion about our beloved Tercel 4WD cars
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My tercel:: 86 sr5

Re: Banging noise when braking

Post by Pocwolfsburg » Sat Sep 09, 2017 11:57 am

I have factory tire size on factory wheels. These cars also have coil spring rear suspension. I too have had wheel hop issues on other cars I've owned and this is not that as far as I can tell. The frequency is definitely speed dependent and it only happens when the wheels are on the ground (I've had it up in the air and there is no sound). I only mention the driveshaft because it has 170k on factory u-joints (non-replaceable) and even though they seem tight, I can't be sure until I get the shaft out and inspect it. It also has a carrier bearing which, while it feels good, is another potential noise maker.
Oh, I should also mention that it sounds different and four-wheel-drive. It's still there but it sounds different.

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My tercel:: 1985 4wd 1986fwd 1983 4wd

Re: Banging noise when braking

Post by jimcrazy » Sat Sep 09, 2017 4:27 pm

don't bother taking the whole drive shaft out,just unbolt it from the rear end and the flange behind the steady bearing,,make sure you mark the two flanges at the steady bearing so it goes back in the same place it was,,the ujoints are replaceable use a Rockford 430-10 or a neapco 1-0430

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My tercel:: 86 sr5

Re: Banging noise when braking

Post by Pocwolfsburg » Mon Sep 25, 2017 9:35 am

I finally got around to changing the carrier bearing and there is no change in the noise. The bearing was good but the rubber surround was worn. Still in-tact, but worn. I'll be replacing u-joints before winter (hopefully), thanks to the information provided by jimcrazy.

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My tercel:: '84 Tercel4wd w/extensive mods
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Re: Banging noise when braking

Post by Petros » Mon Sep 25, 2017 8:39 pm

do not replace the u-joints unless you know they are bad. Always diagnose the problem before you try and fix it. or you waste time and money.

seems to me if the banging only occurs when the brakes are applied, the problem would be with the brakes, not the u-joints.
'87 Tercel 4wd SR5 (current engine swap project)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)

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My tercel:: 1984 Tercel 4WD

Re: Banging noise when braking

Post by oldfaithful » Tue Sep 26, 2017 5:48 am

Are you sure you have 4WD Brake shoes and drums and not 2WD Wagon shoes and drums. They will go on but the backing plates are not the same where the hold down pins go through. If you look on the inside of the drums the 4WD says max. dia. 301 mm and the 2WD say max. dia. 291 mm if my memory serves me right, the 4WD shoes have a round hole where the hold down pins go through from the backing plate, where as the 2WD has an oval hole. I've bought brake shoes at parts stores and they have argued they are the same, believe me, they aren't. Petros is correct in saying, it is not a driveshaft problem as it only occurs when you are braking. Are you sure your hold down springs and pins are all in good shape?

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