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Author Topic: Overhauling early Aprilia sliding pillars  (Read 2275 times)
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williamcorke
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« on: 24 October, 2016, 11:11:50 AM »

I'm about to embark on the overhaul/rebuild of the front suspension of my 1937 Aprilia (which doesn't have a reservoir-feed to each unit. They are self-contained).

A couple of questions.

1. Does the club have the correct tools to loan/hire? Or is there someone on the forum who has them?
2. Assuming there are parts within the pillars that are knackered (I'm expecting that to be the case, as there's quite a lot of play on one side), where should I go for parts?

There's great documentation of the rebuild on Noel's blog http://narrywoolan.com.au/lancia-aprilia-1070/front-suspension.html, which will be a big help. Noel made his own tools... and had to have parts machined.
« Last Edit: 24 October, 2016, 01:55:46 PM by williamcorke » Logged

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lancianut666
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« Reply #1 on: 24 October, 2016, 02:47:50 PM »

check this website out
http://www.oldlanciaspares.com/aprilia/telaio.php
Clarkey
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williamcorke
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« Reply #2 on: 24 October, 2016, 08:07:26 PM »


Thanks. I should have thought to look at Cav. Surprisingly good range of parts.
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« Reply #3 on: 24 October, 2016, 08:09:24 PM »

Firstly William, what are the correct tools? I have put a list of tools the club has to loan out in the library. If there is any you want checked out please let me know. Having said that, the only tools listed appear to be for the later Aurelia/Appia. Otherwise have you contacted Ben Courage?
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« Reply #4 on: 24 October, 2016, 08:56:51 PM »

Don't forget there are two different versions of the front suspension for 1st series, they changed towards the end of 1937 at construction no. 3001. The later type is bigger in all dimensions so the tools are not interchangeable. The parts listed on the Cavalitto website are 2nd series but he might have some early parts.

I made my tools on a small 9" Hercus lathe so any competent machinist should be able to turn them up easily. I don't have any drawings of them but if you can establish your suspension is the same as mine I can measure the tools and do a bit of a drawing. I don't know what the factory tools look like but the photo shows what I made. The tool with brass inserts is to undo the bottom plug and the other two fit the internal sleves in the damping section.
Noel


* FS tools.jpg (137.75 KB, 1024x768 - viewed 155 times.)
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williamcorke
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« Reply #5 on: 25 October, 2016, 09:34:10 AM »

My car is 1427, so certainly the earlier type. However, when I got the car the front suspension was incomplete, so I managed to get hold of another by buying a sad shell of an Ardennes with James Parry - who kept the shell, which was unmolested (straight) though very sad and incomplete. I got the front axle and a few other bits. It is the 'French' unit that I'm planning to rebuild, though parts from the one on the car could be used, if (and I haven't yet measured / compared the two) they are the same type. It looks like I need to do some measuring and photographing before I'm sure what tools are needed.

Thanks all for tips.

William
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davidwheeler
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« Reply #6 on: 25 October, 2016, 04:32:42 PM »

Now, beware, my car has a different axle (from a tourer I found in a scrap yard on the Weston to Bristol road in 1969) which appears to be an early 2nd type!   There were, I think, later modifications to the oil valving arrangements also.   You had better measure carefully to find out what you have got.
 
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williamcorke
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« Reply #7 on: 26 October, 2016, 11:47:55 AM »

Now, beware, my car has a different axle (from a tourer I found in a scrap yard on the Weston to Bristol road in 1969) which appears to be an early 2nd type!   There were, I think, later modifications to the oil valving arrangements also.   You had better measure carefully to find out what you have got.
 

Yes, quite. My car should have the earliest type, but over the decades parts get swapped.

Measurement, dismantlement, more measurement. That's the programme!
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« Reply #8 on: 26 October, 2016, 10:49:04 PM »

If it's off an Ardennes then it should be the same as the early 1st series. The easiest way to tell is measure the second cover on the top sleeve, across the flats the early type is 41.1mm, the later is 48mm, The attached pics show the difference. I don't think many parts are interchangeable as the kingpins went from 32.55mm appropriate to 39.4mm od.

Have look at the one being restored here and see if it matches.
http://retro-meca.com/restaurations/Lancia%20ardennes/trains.htm

Post a few pics if you can. Have you asked James if he has the appropriate tools?
Noel


* early 1st fs.jpg (280 KB, 768x1024 - viewed 209 times.)

* later 1st fs.jpg (192.66 KB, 706x1024 - viewed 239 times.)
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1937 1st series Aprilia Berlina
Nissan X-Trail T31 TS
1920 P & M 3 1/2hp {FOR SALE}
John Deere LX188
www.narrywoolan.com.au/home
williamcorke
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« Reply #9 on: 28 October, 2016, 11:42:57 AM »

If it's off an Ardennes then it should be the same as the early 1st series. The easiest way to tell is measure the second cover on the top sleeve, across the flats the early type is 41.1mm, the later is 48mm, The attached pics show the difference. I don't think many parts are interchangeable as the kingpins went from 32.55mm appropriate to 39.4mm od.

Have look at the one being restored here and see if it matches.
http://retro-meca.com/restaurations/Lancia%20ardennes/trains.htm

Post a few pics if you can. Have you asked James if he has the appropriate tools?
Noel


Thanks Noel, that's extremely helpful. I'm going to get the two units side by side and get measuring. Have mailed JP to ask about tools.
« Last Edit: 30 October, 2016, 07:54:47 PM by williamcorke » Logged

'37 Aprilia
'50 B10
'68 Flavia Vignale
'55 Giulietta Sprint
S1 Land Rover
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