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Author Topic: New B20s for sale  (Read 15818 times)
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Parisien
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« Reply #45 on: 05 February, 2012, 03:23:55 PM »

There's a choice of 4 Aurelia B20 for sale here, 3 are restoration projects.
http://thornleykelham.com/marketplace/Cars-for-Sale/

.......35K plus restoration costs.....ball park figure these guys would charge?

P

PS I'm already sitting down...Wink
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Frank Gallagher
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« Reply #46 on: 05 February, 2012, 07:29:49 PM »

Unfortunately I had very little influence on which cars were photographed for my Aurelia book. But I would have preferred to see the 3rd series in the state in which it is now offered - apart from the rather conspicious paint which looks metallic to me. While we are at it I would like to hear the opinion of others of the fact that all the Aurelias we have seen for sale here have had the plunger in the brake reservoir right down.
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B20B24
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« Reply #47 on: 06 February, 2012, 09:14:54 AM »

The brake plunger is only up on my cars if I'm bleeding the system.

Otherwise it's always down?
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« Reply #48 on: 06 February, 2012, 11:11:48 AM »

on an appia the plunger is always up to pressurise the braking system so it acts like a servo, i would imagine an aurelia would be the same, most dont hold the pressure as the seals go in the pump, my friends appia plunger always goes down wher as mine always stays up, the differance in breaking effort is unbelievable between the 2 cars, when i 1st drove his car i had a bit of a moment when i thought his breaks weren't working however it was just the lack of pressure in the system requiring more pedal pressure instead for the same affect,
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« Reply #49 on: 06 February, 2012, 11:48:00 AM »

We have had a discussion about these plungers before on the subject of bleeding Aprilia brakes - S2 Aprilias had the same system. My post on 10 April 2011 was:

The plunger should stay up and should feel hard if you try to push it down. If it goes down it is supposed to warn you that you have lost fluid and something is wrong!

Some of the D20 - D25 race cars had the plunger protruding through the scuttle to be visible to the driver just to warn him when to get really worried! You should just be able to make it out in this photo of Castellotti just in front of his right knee.

Colin


* D24crop.jpg (148.65 KB, 547x768 - viewed 174 times.)
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B20B24
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« Reply #50 on: 06 February, 2012, 12:13:25 PM »

Interesting - I've never had any brake problems or loss of fluid...I'll try with it up, I can see the logic in warning of a problem.
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« Reply #51 on: 06 February, 2012, 12:25:47 PM »

Since my post that started this post elsewhere re my ApriliaS2 I have always had the plunger pulled up and I check it I guess every month or so and it may drop 2-3mm but never loses pressure since I rebuilt the dodgy master cylinder....

Brakes lock in the dry at 70mph. My MOT tester saw the size of the drums and said he would take my word for them working. Maybe it would have wreaked his rolling road kit or my car might just have shot off the rollers who knows...

Tim
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« Reply #52 on: 06 February, 2012, 09:20:57 PM »

And then the D24 at Goodwood in September 2011 had the plunger down! See photos. This is the ex Anthony MacLean car (I think) and perhaps he had more confidence in the braking system than Castellotti did 50 years earlier.

Colin


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Niels Jonassen
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« Reply #53 on: 06 February, 2012, 11:09:45 PM »

Interesting to read the various answers. When I first ran my B20 the seal in the reservoir was in a very poor shape, and the plunger was down most of the time. The difference to the brakes was remarkable. With the plunger down the brakes needed more pressure than with the plunger up. Years ago I bought a new seal from Cavalitto - so long ago that I actually dealt with Enrico Cavalitto himself - and since then the plunger has stayed up, and the brake pedal has a very short travel. I prefer it this way, also since this is the way is was designed to be. The plunger is not there only to make bleeding easier.
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Kevin MacBride
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« Reply #54 on: 06 February, 2012, 11:20:52 PM »

I always had the plunger up, as anything I read on the subject stated this was correct. Usually after a race, I'd have problems with brakes binding, and would have to wait for them to cool to be able to push the car easily.
Once the rears locked completly which resulted im a spin through a chicane. I decided to release some pressure and see what happened. Result much better brakes and a fairly hard pedal which I prefer.
Now I did experiment with cylinder sizes and shoe compounds, so maybe they made a difference. Plunger has been down for years and I can outbrake an XK Jag with discs !!
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« Reply #55 on: 07 February, 2012, 09:47:35 AM »


An outsider would think after fifty years there'd be an answer.  All part of the intrigue and fascination.

David
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« Reply #56 on: 07 February, 2012, 11:33:51 AM »

The manual for 2nd series Aprilias with Sabif brakes states "the pressure stem is working normally when, if pulled up it remains in this position"
I don't have this system so cannot confirm if this is true, but guess it would be.
Noel


* Sabif brakes.jpg (255.16 KB, 700x1039 - viewed 152 times.)
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« Reply #57 on: 07 February, 2012, 12:57:27 PM »

Thats my S2 braking system!! So I will have it up...

Tim
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1955 Aurelia B12
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« Reply #58 on: 07 February, 2012, 03:35:20 PM »

I've always kept it up on my Aurelias!!


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« Reply #59 on: 07 February, 2012, 10:47:49 PM »

If you look at the frame of the Aurelia bonnet you will notice that there is a hole above the plunger to enable it to stay up with the bonnet closed.
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