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#Post#: 102880--------------------------------------------------
Odd brake behaviour
By: kiwi s3 Date: August 31, 2018, 11:16 pm
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Hi all,
In the past couple of months the brakes on my SWB S3 (1978,
standard 10" drums all round, servro & PDWA) have been behaving
oddly.
After being parked for a day or more, the first use of the
brakes results in them applying really sharply - like I had
stamped on the peddle rather than just given the usual gentle
push. After the first use, the brakes revert to working
normally (i.e. just adequately!).
I parked up at work yesterday and 10 hours later drove out of
the carpark. Touching the brake peddle at the first junction had
the nose diving and everything almost locking up. After that,
all was fine.
I presume it's a fault with either the Master Cylinder or the
Servo, but I'm struggling to think of a fault that actually
makes the brakes better!!
Any one have any ideas?
Cheers,
Mark,
Wellington, NZ.
#Post#: 102881--------------------------------------------------
Re: Odd brake behaviour
By: w3526602 Date: September 1, 2018, 2:03 pm
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Hi Mark,
I've met that. Learned to live with it. Dab the brake pedal
before you need to. If you have 11" front brakes, try a short
bit of reversing then brake. The front brakes will then be twin
trailing shoes so less self-wrapping effect.
It might help if you do the last stop of the day using the hand
brake ... or it might make it worse. ???
It was suggested that my problem was rust forming on the drums
overnight, possibly due to an inferior/different grade of cast
iron.
602
#Post#: 102882--------------------------------------------------
Re: Odd brake behaviour
By: Dieselspanner Date: September 3, 2018, 2:02 pm
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Hi Mark
I get the same on a '80 Series III SWB.
We get very 'dewy' nights here, 935m up in the Pyrenees, so I've
put it down to rust too, I suppose I should get off my arse and
look inside the drums.........
Cheers
Stef
#Post#: 102884--------------------------------------------------
Re: Odd brake behaviour
By: Jackual Date: September 6, 2018, 1:46 am
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Pretty normal brake behavior that, especially now with the
weather being so wet and damp. Same happens to me, each time I
leave home or work, I hit the brakes for the first time and
they're pretty grabby :toothless:
Thanks, Jack.
#Post#: 102886--------------------------------------------------
Re: Odd brake behaviour
By: kiwi s3 Date: September 10, 2018, 5:12 am
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Thanks for the info. I'll not worry too much about this then -
and I'll take the drums off when I get some time.
#Post#: 102906--------------------------------------------------
Re: Odd brake behaviour
By: kiwi s3 Date: November 29, 2018, 3:56 am
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On checking the drums, I found that they (one particularly) was
worn beyond the max limit. A new pair of drums and braking is
better than ever.
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