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Kevin you need to set the clock on your PC :-)
Kevins Work wrote:
Hi
Martin For
£50 the pair it is not worth the aggro of messing about with them,
what is the make of the Caliper, from what car and year.Thanks
Kevin
Hi
KevinWhen
Jason and I first took Lex out for a test run (at least 4 years sitting
still remember), the brakes were awful. When we got back we discovered
only one of the four front pots was actually engaging, and that was without
enthusiasm! I
pulled the wheels off, took out the pads and pumped like crazy on the pedal.
Eventually all 4 pots creaked out. I squirted them with a bit of oil and
squidged them back in using Jason's Magic Brake Retraction Tool (a guy
who has an enormous Snap-On tool chest still uses this metal pipe with
a flat bar welded to it for brakes), then repeated the process. I think
I had to take the calipers off to get the pots back in, but after doing
this twice, they were fine, and have been ever since.If
the pot is well and truly stuck, you can use James' idea of making a bicycle
pump attachment for the bleed screw. You can then pump air into the pot
to force it out.Or
say bollx to it and go down the local motor factors and buy a new pair
of calipers for under £50.I
also had a problem with one of the rear calipers - Jason made an educated
guess that it was the flexi-hose and was spot-on. The Diesel Centre can
get flexi hoses that will fit (though they aren't a 100% match - 1/2" longer
on the back and 1" shorter on the front) for about £9 each. There's
a stainless braided clutch line too BTW, but only really makes a difference
in the hot weather.You
could be right on the vacuum line - easy enough to check.M
Hi
MartinI
collected the car about 2 weeks ago and drove it about 150 miles. I noticed
that brakes need a huge amount of effort, as does the clutch.The
front wheels came off last night and after the drive I would have expected
the discs to be shiny.They are however quite tarnished and slightly
pitted. Hence my thoughts on the 4 pot caliper and grooved disks. You
said that "my brakes are good enough",
I am suspecting a collapsed vacuum to the brake servo, seized or rusty
calipers and or grotty disks.What
do you think?Kevin
#5959-----Original
Message-----
From: Gutkowski, Martin [mailto:martin.gutkowski@xxxx]
Sent: 06 February 2003 2:17
AM
To: doc-uk@xxxxxxxxxxxxxxx
Subject: RE: [doc] ABS Brakes
Chris
H and I had a chat about this with Steve Wynne some time ago (Eurofest
actually) on ths subject and I completely understand what he said. The
problem with upgrading the front brakes on the DeLorean is the weight distribution.
Look at any modern cars - my Xantia has fantastic brakes which are 300mm
double walled vented on the front and piddly 200mm plates on the back with
postage stamp pads. It stops as if stuck to the road. The active pitch
correction and power assisted high pressure hydraulics helps.... The
DeLorean has roughly the same sized discs front and rear and there's
reason for that - the weight distribution gives it a gloriously even braking
force. If you uprate the fronts, the front wheels'll skid before the backs.
At the end of the day, I'm quite capable of pulling a 4-wheel skid on a
dry road - my brakes are good enough (not that I've tried mind you!!!).
And I haven't invested in a set of Marty Maier's Stainless braided brake
hoses, or kevlar pads as yet (these will both increase the "sharpness"
of the pedal).Bottom
line: If one were to quote the "rubber-on-the-road-to-weight ratio", I
think the DeLorean would do quite well. It stops remarkably well as it
is and I would think about kevlar pads and upgraded flexi-hoses with a
set of Pirelli tyres before worrying about 4 pot calipers (and how would
you work the handbrake if changing the rear calipers?). Also, there's not
a lot of room in those 14" front wheels :-)Martin
Hi
StianGood
question!.I
am also a little concerened about the brakes. I think however ABS is a
non starter sensors need to be put on the wheels etc,etc,. I
am looking into changing the front calipers to 4 pot together with grooved
disks. this should increase the effiency of the brakes. Have any others
in the DOC done this ??Kevin
#5959
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