Lancia Aurelia
  • Home
    • About
    • map of differences
    • Advertisements
    • Character
    • Original Cars
    • Fangio on the Aurelia
  • Models
    • Berlinas
    • Coupes >
      • Why the series?
      • Series in detail
    • Specials
    • Spiders, Convertibles
    • Nardi
  • Competition
    • Aurelias in Competition
    • Other Racing
    • Special Races
  • Engineering
    • Engines
    • Evolution
    • Crankshafts
    • Camshafts
    • Carburetors
    • Chassis >
      • Front Suspension
      • Rear Suspension - IRS
      • Rear Suspension - de Dion
      • Transaxle
    • Build Quality
    • Drawings
    • Unusual
  • Outgoing
    • Reference >
      • Parts books
      • Web info
      • AST (data sketches)
      • Service Information
      • Parts
      • Color
      • Prices
    • Events >
      • Sliding Pillar
      • Castlemaine
      • Registro Aurelia
      • Other Events
      • B10 photo essay
    • Tech Tips >
      • Carburetors
      • What cam to use?
    • B20 Restoration
    • B20 road test
  • Books
    • Two books for sale
    • Balancing, for sale
    • At the Center, for sale
    • At the Center, in detail
    • Other Publications
    • Articles
    • Lancia Materials FS
    • Library
  • Other Lancias
    • Appia
    • Aprilia
    • Flaminia Super Sport
    • Flavia 2000 >
      • Kugelfischer injection
  • Contact
  • Blog
  • Errata

Aurelia valve gear

8/3/2018

0 Comments

 
Picture
Heading up to Wisconsin for the vintage car weekend, I was worried with a loud ticking from the engine. The local mechanic (Gianni) pulled the valve cover and checked the valve clearances - which should be done on a cold engine. This one was hot, so it not quite proper, but we found two loose rocker arms, and were able to get them back to the specifications shown by the other valves. (On an average, seems the valve lash was  about .05mm tighter than when cold, but that is just a guess). 
Here is a shot of the rocker arms and the pillow boxes that hold them. You can see the pushrods up top in pairs, coming from the cam in the valley of the "V". Then the clever rocker arms, in pillow boxes that are angled, so that the intake valve is rotated about 45 degrees closer to the intake, and the exhaust valves are on the bottom, close to the exhaust manifold. This way of rotating the valves was De Virgilio's clever improvement, first implemented  in 1952 on the second series B20, and then used for all subsequent B20 and B24 engines. This car has the two single Webers as standard (the one for this bank is visible) and a special tubular exhaust.
0 Comments



Leave a Reply.

    Categories

    All
    Aurelia
    Other Lancia

    Archives

    November 2022
    August 2022
    July 2022
    May 2022
    April 2022
    September 2021
    June 2021
    May 2021
    April 2021
    March 2021
    December 2020
    September 2020
    August 2020
    July 2020
    May 2020
    March 2020
    February 2020
    January 2020
    December 2019
    November 2019
    September 2019
    August 2019
    June 2019
    February 2019
    January 2019
    November 2018
    August 2018
    June 2018
    May 2018
    April 2018
    March 2018
    February 2018
    January 2018
    December 2017
    November 2017
    October 2017
    September 2017
    August 2017
    July 2017
    June 2017

site design and content copyright  G. Goldberg, images as noted                            Proudly powered by Weebly
  • Home
    • About
    • map of differences
    • Advertisements
    • Character
    • Original Cars
    • Fangio on the Aurelia
  • Models
    • Berlinas
    • Coupes >
      • Why the series?
      • Series in detail
    • Specials
    • Spiders, Convertibles
    • Nardi
  • Competition
    • Aurelias in Competition
    • Other Racing
    • Special Races
  • Engineering
    • Engines
    • Evolution
    • Crankshafts
    • Camshafts
    • Carburetors
    • Chassis >
      • Front Suspension
      • Rear Suspension - IRS
      • Rear Suspension - de Dion
      • Transaxle
    • Build Quality
    • Drawings
    • Unusual
  • Outgoing
    • Reference >
      • Parts books
      • Web info
      • AST (data sketches)
      • Service Information
      • Parts
      • Color
      • Prices
    • Events >
      • Sliding Pillar
      • Castlemaine
      • Registro Aurelia
      • Other Events
      • B10 photo essay
    • Tech Tips >
      • Carburetors
      • What cam to use?
    • B20 Restoration
    • B20 road test
  • Books
    • Two books for sale
    • Balancing, for sale
    • At the Center, for sale
    • At the Center, in detail
    • Other Publications
    • Articles
    • Lancia Materials FS
    • Library
  • Other Lancias
    • Appia
    • Aprilia
    • Flaminia Super Sport
    • Flavia 2000 >
      • Kugelfischer injection
  • Contact
  • Blog
  • Errata