locogeoff
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| posted on 4/2/06 at 10:38 PM |
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Brake Fluid Question
O.K. Its that old chestnut
Tintop Mr2 requires DOT3, halfrauds only do DOT 4 and 5.1, is DOT 4 compatible with Dot 3.
And anyone know where to get copper banjo seals on a sunday morning in Fife area 15mm outside 10mm inside
cheers in anticipation
Geoff
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andylancaster3000
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| posted on 4/2/06 at 10:52 PM |
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How strange...i need exactly the same parts for my MR2 at the moment, beofre next weekends trackday!
I think Dot 3 and be used with/inplace of DOT 4. DOT 5.1 is not compatable with either.
Sorry, can't help with copper seals. Are they not sold at Halfords?
Andy.
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rusty nuts
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| posted on 4/2/06 at 11:00 PM |
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Dot 4 is a better spec than Dot 3 . If bleeding brakes it's worth bleeding all nipples until clean fluid comes out . Brake fluid is hydroscopic
which means it absorbs water from the atmosphere which in turn lowers the boiling point which can cause brake fade. Brake fluid should be changed on
all cars at least every two years if not sooner, IE Vauxhalls should have fluid changed every year regardless of mileage.
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locogeoff
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| posted on 4/2/06 at 11:00 PM |
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Andy
Just spend £370 on calipers disks and pads for the front, £100 deposit on the calipers mind, so £270 clear
do you know of decent places to get spares, that was brakes international who where cheaper than partco and presumable Toyota who wont talk to me.
Going to try fast fit places (kwik fit etc) if I have any success I'll let you know
Jeez whats the problem with vauxhalls cause I've not changed the Nova fluid for donkeys at least 2-3 years
[Edited on 4/2/06 by locogeoff]
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RazMan
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| posted on 4/2/06 at 11:12 PM |
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Conventional brake fluids mix safely with any mineral based fluid conforming to DOT 4 or DOT 5.1.
DOT5 however is silicone based and should not be mixed.
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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andylancaster3000
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| posted on 4/2/06 at 11:41 PM |
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Geoff
I'm in the same position, I need some rear calipers and discs and am struggling to find them at a reasonable (student budget!) price. For other
parts ebay seems to be quite good. Lots of people breaking ones due to rust!
Andy
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Peteff
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| posted on 4/2/06 at 11:52 PM |
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Don't assume higher is better either as not all seals are compatible with synthetic fluid.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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RichieC
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| posted on 4/2/06 at 11:58 PM |
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Yeh beware of Dot5, as its not compatible with 3, 4 and 5.1
Weird I know as youd expect 5.1 to be the odd one out
[Edited on 5/2/06 by RichieC]
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britishtrident
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| posted on 5/2/06 at 11:21 AM |
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The brakesint web site has a lot of good info on fluid contamination.
With regard to DOT5 mixing with other fluids the big problem is what happens when water contamination occurs. DOT5 is best restricted to classic cars
that are rarely used its lubricant properties prevent internal corosion of the brake cylinders.
There is as myth going round which seems to have originated among the classic car fraterinity in the eastern USA that brake seals from the 1950/60s
the DOT3 era will get perished by DOT4 "universal" fluid this is of course false.
Clean fresh "dry" DOT4 fluid is all that is required -- change regularly 2 yearly intervals one year is better.
[Edited on 5/2/06 by britishtrident]
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