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Bleeding Brakes

We never had problems with our R400 Catering Vehicle, but it was only 515Kgs but 230 BHP made it go quite well despite aerodynamics of a London cab.

Exactly my point. When you brake you turn kinetic energy into heat and the more mass or weight you have to retard the more heat you generate.

I dont know where you can get the titanium plates to be honest but it is to do with the fact that Titanium conducts heat at about half the rate of steel and I think they are used on Le Mans cars and endurance racers etc - basically like a posh anti squeal shim.

EDITED: I found these.....................here but I would imagine you could talk to a local fabricator and get a small sheet and make your own.

Bleed the farthest away first on the rear, then the second rear, then the farthest front and finally the nearest front.

Keep going until the colour changes (and there are no air bubbles) and dont let the reservoir run out. If you are changing the lot I`d buy a litre.

You havent got ABS have you?
 
Thanks Paul, farthest first, OK will do.

No we don't use the ABS, used to having the odd wheel lock up: :)

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Nice one Paul!

With the Catering Van locking the odd front isn't too painful, it understeers a bit but you can make up for missing an apex by applying more power on the exit, it then oversteers into a only slightly slower line than optimum. Locking rears on a Cat is bl**dy awful as it will swap ends as quick as you can say sh*t!

The 944 as you rewards smoothies, and I'm working on my technique, but fair to say Tom (my son) has got it to go quicker than me on more than one occasion. :(

Obviously takes a longer time to teach an old dog..... etc.etc.
 

ORIGINAL: Cater_Racer

The 944 as you rewards smoothies, and I'm working on my technique, but fair to say Tom (my son) has got it to go quicker than me on more than one occasion. :(

Obviously takes a longer time to teach an old dog..... etc.etc.

Ever since I rolled my Ginetta G27 V8 a few years ago (lucky to be here) I am not quick any more, so much so that when last on track I was struggling to haul in cars yet my son gets past some serious machinery as if they were pootling around!!!!

Good luck and stay safe.
 
Thanks for the reply, yes I thought that so got a piece of small tubing that I had to soften up to fit over the bleed nipple, don't seem to have made much difference.
 
Try leaving it overnight between attempts with it jacked up at the front as high as you possibly can. Use a piece of wood to apply pressure to the pedal too.
 
is it a problem at all 4 calipers? it definitely shouldn't be a long job. Might be worth reverting to the old 2 man approach to bleed. That would remove any possible issues with the vac equipment.

I hesitate to suggest, but you're not running dry in the reservoir are you? The only other thing I can think of is a leak somewhere - if you fill / bleed using pressure you eould find it.
 
Thanks Simon, front is higher than rear and has had a few overnight rests! Will try a bit of pressure on the pedal though.

Edd, I am coming to the conclusion that the vacuum equipment is causing the grief as it is all corners, I am assuming if there was a leak I would have noticed by now as that is how I found that one of the rear pipes needed replacing.

Not running dry, although I did with the clutch fluid as that is just the same[:mad:]

Going to employ the Lin's help later and have a go the old way, I wonder if the vac is pulling air in from the bleed nipple thread once cracked open?
 
Thanks fellers, thought I was going mad, with Lin's help took about 15mins to check all 4 and the clutch, they were practically free of air!! looking at this in depth instead of late at night after a long day, the vac equipment was pulling air from around the bleed nipple thread [:mad:]

It has such a pull on it, so in future will use it to pull the air through then when the fluid starts will have to revert to the 2 man (man/woman) method, would it be ok to put some PTFE tape around the bleed nipple threads to help to prevent the problem in future?

Anyway here she is ready for the rear lowering and Geo tomorrow.....

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The front is much lower than before although the pic dosen't really show it

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Or does it? ....

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What do you think? will post some proper pics once completed, hopefully tomorrow fingers crossed, I drove her up the road and back but with everything out of kilter it's like driving on jelly!
 
Good work Andy,
when I look at your car in the garage there, I wonder if the original bumper assembly looks better than the turbo/s2 style.
I always find the old simple brake bleed technique is best too. I would maybe suggest that a good process which omits air is:
Work from the most distant calliper
Open the drain and wait for clean fluid to appear. Nip up bleed screw.
then do the next calliper and repeat until all 4 are done, ensuring the reservoir is topped up at all times.
keep up the good work
George
944
 
Car is looking stunning. I love the rubber spoiler lip on the front,it really finishes off the front end. Wheels look good and your garage is way to tidy.
 
ORIGINAL: 944 man

Black centred wheels only look right with polished rims, in my opinion.

Simon, I agree, I am just waiting to finally decide on which wheels I actually want to have on the car, whilst I love the look of my sport design's I think sadly I have finally decided to sell them and stick with 16"s once I have test painted the Cup 1 rep's to decide how I wamt them I will probably go with the cups for summer and the D90's for winter complete with some winter tyres.

Here is a pic of one of my previous S type's and how I like black wheels to look........

DSCF1519.jpg

DSCF1525.jpg

 
George, I have always thought that about the front bumper's a bit more classic looking I think?

Colin, thanks for the comments and I do like tidy.............or is that O.C.D. [:D][:D]

Just for you Craig.......[8D]

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