New Brakes

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Discussion

bigtone

Original Poster:

1,211 posts

285 months

Monday 2nd June 2003
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Finally got around to flaring the last of the brake pipes up yesterday, the ones that have been pointing straight up from the chassis since Justin helped us with the rest of the system on Easter day, 2002! Quite where the last year has gone I have no idea!

Once we'd got them all secured up, we put the new Automec silicone fluid in, and bled them using an eezi-bleed pressure system, and we were done within 10 mins or so.

The question is, when the engine is running (which is a story for another day, watch the web site!), and the car is moving, it takes a lot of pressue for the car to even start to brake, and my foot had to go right down before I felt any pressure.

I think the servo is ok, as if the engine is off I can pump the brake and it'll firm up, then when starting the engine, it'll go down, but can't figure out how to make the brake kick in earlier.

Any suggestions welcome!

Cheers, Tony

solo II

20 posts

253 months

Monday 2nd June 2003
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I recently used one of those one man brake bleeders on my 2500m. It didn't work worth a damn so I went back to the tried and true method of pumping the brake pedal until all air was out of the system, then tightened up on the bleeder valve. It worked like a charm and the brakes stop the car better than ever. I can't say why the ezbleeder didn't get the job done as it has worked on my other cars, but there it is. Good luck!

zefarelly

229 posts

258 months

Tuesday 3rd June 2003
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I think it may be something to do with the servo.

Ive had problems with the vixen pedal being low. it seems ok now now Ive adjusted the rear shoes up a bit more

bigtone

Original Poster:

1,211 posts

285 months

Tuesday 3rd June 2003
quotequote all

zefarelly said: I think it may be something to do with the servo.

Ive had problems with the vixen pedal being low. it seems ok now now Ive adjusted the rear shoes up a bit more


Thats an interesting point actually, as if the shoes are a long way from connecting with the drums, it'll need more travel on the pedal. We do have an issue with the handbrake as it happens, in that it needs to be pulled almost vertical to be able to hold the car on the slightly sloping driveway.

That seems like the plan then, re-bleed the brakes manually, and then adjust the rear shoes. Whats the deal with the shoes, do them up so they connect, then back them off a little so they almost touch, but not quite?

Thanks for that!

Tony

graham m

78 posts

269 months

Tuesday 3rd June 2003
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To adjust rear brakes. Jack car up. Remove wheel. Tighten adjuster fully. Drum should lock up. Back off adjuster until you can turn drum by hand. You will feel when the drum frees and stops binding.

zefarelly

229 posts

258 months

Thursday 5th June 2003
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from this weeks brake fiddling . . . . .

the rear adjusters on the vixen are manual, like mini brakes thayre shyte, Ive wound mine up a bit so theyre just binding a nats cocks worth!, the pedals higher, but still not that high, the front end is all new, I bled them through with the hand brake on (what it says in the manual) backs first then fronts

Im still not impressed, I think braided hoses, and removing the servo is the way to get the best feel to them, I dont think you need the servo with a vixen, its lighter than a cortina and the same power output, and that stopped on a sixpence when I did the same rebuild with braided hoses.

they work though, I did a masive skid to check, just outside my local, made a few people jump

bigtone

Original Poster:

1,211 posts

285 months

Thursday 5th June 2003
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From last nights brake fiddling....:

Decided that the adjusters were the way to go first, so wound them up so they bound, then backed off a little bit, so the shoes still hit occasionally, but the drums move with a bit of pressure.

Then attached the pressure bleed system and bled the system starting from the furthest from the reservoir, and moving to the closest, but with the addition of pressing the pedal down while the nipple was released and tightening it back up while fully depressed - a surprising amount of air came out, but we cycled it through a number of times, and it seems to be clear now.

We obviously can't pick up too much speed on the driveway (unfortunately!), but it does stop a lot better now, and the handbrake stops within about 6 clicks instead of being vertical.

Just hope things are up to the job when out on the road now!

Cheers, Tony

zefarelly

229 posts

258 months

Thursday 5th June 2003
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aahhhh . . .Ive got my handbrake down to two or three clicks!

beat that

hope your test runs good

bigtone

Original Poster:

1,211 posts

285 months

Thursday 5th June 2003
quotequote all

zefarelly said: aahhhh . . .Ive got my handbrake down to two or three clicks!

beat that

hope your test runs good




HOW?! We've got new shoes and original slightly uneven drums, so I reckon thats making a bit of difference - will have to head underneath and adjust the slack in the cables now!

Tony

zefarelly

229 posts

258 months

Thursday 5th June 2003
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I did my cables when I had the gearbox out a few months ago (dont ask!) and I never leave the car with the hand brake on if its in the garage (not often!)

got absolutely filty in the process!

Terminator

2,421 posts

285 months

Thursday 5th June 2003
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zefarelly said:got absolutely filty in the process!

Must get my wife to take my gearbox out this weekend


zefarelly

229 posts

258 months

Thursday 5th June 2003
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if you like the smell of cats piss (gearbox oil) then go for it