Lancia Motor Club Forum Banner
04 June, 2020, 09:43:07 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Need to contact the Forum Administrator? e-mail forum.admin@lanciamc.co.uk, for Database Administrator e-mail database.admin@lanciamc.co.uk      -      Copy deadline for Viva Lancia is 12th of each month.      -      For Events e-mail events@lanciamc.co.uk      -      To Join the club go to http://www.lanciamc.co.uk/join.htm
 
   Home   Help Search Calendar Register  
Pages: [1]   Go Down
  Print  
Author Topic: Camwheel question  (Read 1682 times)
0 Members and 1 Guest are viewing this topic.
RobD
Lapsed
Senior Member
*****
Posts: 180



« on: 12 January, 2016, 10:56:39 AM »

Having recently purchased some Series 1 camwheels with the vernier adjustment and the corresponding series 1 cam chain I'm now puzzled. I was under the impression the series 1 camwheel used a different pitch chain than the type fitted to later cars and yet the pitch of the teeth on the early camwheels which I have is identical to a set of non vernier later camwheels taken from a series 3 . Am I missing something here?
Here's a pic of a bundle of joy from Italy which arrived early in the new year...

[/URL]
Logged

You're all entitled to my opinion.
'75 Fulvia 1.3S
'68 works Laverda 125cc ISDT
KTM 640 Adventure
Yamaha TDM 900
Numerous Gas Gas trail bikes...
www.adventureride.co.uk
the.cern
Permanent resident
**
Posts: 1488


« Reply #1 on: 12 January, 2016, 01:26:15 PM »

Bundle of joy ........ an apt description.
Logged
roddy
Senior Member
*****
Posts: 165


« Reply #2 on: 13 January, 2016, 12:12:52 AM »

Have 'fun' putting all the bits in the correct places........

The chain pitch is the same for both S1 and S2/S3 cars.  It is the roller diameter that is different.  S1 chains have larger diameter rollers, so the teeth in all the chain wheels have a larger 'hollow' between them.  Conversely, S2 cars have a chain with smaller diameter rollers, and different chain wheels throughout.  S3 cars have the same chain, but the cam chain-wheels are key-way'd on to the shafts, so no vernier adjustment.

Regards - Roddy
Logged

Roddy Young
Dunfermline, Fife

1970 Fulvia Sport S1 1.3S
1972 Fulvia Sport 1600
lancialulu
Press Officer
Permanent resident
*****
Posts: 3837



« Reply #3 on: 13 January, 2016, 09:39:12 AM »

Hence you need the S1 crank sprocket..... Nice Pistons - I thought you were not going for higher comp???
Logged

Its not the winning but taking part! or is it taking apart?
1955 Aurelia B12
1967 Flavia Vignale iniezione
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia 1600HF
1972 1600 Fulvia Sport
1979 2500 Gamma Coupe
1988 Delta 1.6GTi
1998 Zeta
RobD
Lapsed
Senior Member
*****
Posts: 180



« Reply #4 on: 13 January, 2016, 11:37:31 AM »

Thanks for the clarification Roddy.
Hey Tim, having considered all the options I decided I was only going to through this exercise once and therefore I might as well build something interesting. So, I've plumped for 11.1 compression, slightly larger inlets, new valve springs and for good measure I've gone for new bolts and gaskets throughout. Using standard cams we're going to introduce a bit more overlap in the valve timing and hopefully in conjunction with the GP4 exhaust and inlet manifold,plus a set of new DHLA 40s and careful attention to balancing the crank , flywheel and clutch it should go quite well.
Logged

You're all entitled to my opinion.
'75 Fulvia 1.3S
'68 works Laverda 125cc ISDT
KTM 640 Adventure
Yamaha TDM 900
Numerous Gas Gas trail bikes...
www.adventureride.co.uk
peterhedge
Member
**
Posts: 12



« Reply #5 on: 26 July, 2016, 07:50:39 AM »

Hi Rob, looks like I'm on a similar journey to you, do you mind me asking where you bought the pistons, valves and springs?
Logged
lancialulu
Press Officer
Permanent resident
*****
Posts: 3837



« Reply #6 on: 26 July, 2016, 08:26:10 AM »

Peter

Rob lapsed his membership so now longer on this forum.....

Tim
Logged

Its not the winning but taking part! or is it taking apart?
1955 Aurelia B12
1967 Flavia Vignale iniezione
1967 Fulvia 1.3HFR
1972 Fulvia 1600HF
1972 Fulvia 1600HF
1972 1600 Fulvia Sport
1979 2500 Gamma Coupe
1988 Delta 1.6GTi
1998 Zeta
roddy
Senior Member
*****
Posts: 165


« Reply #7 on: 30 July, 2016, 11:28:34 PM »

Hello Peter

From the photograph in the first post, you can see that 'Cavalitto' is stamped on the crown of the pistons.  I sourced pistons from them about 18 months ago.  The firm get them made by CPS in Turin. Cavalitto offer standard or raised CR pistons, both cast and forged.  If the size is not in stock (as was the case for me), the supply came in 5 days, with then quick and excellent despatch to the U.K.

Hope of use?

Regards - Roddy
Logged

Roddy Young
Dunfermline, Fife

1970 Fulvia Sport S1 1.3S
1972 Fulvia Sport 1600
Pages: [1]   Go Up
  Print  
 
Jump to:  

Contact the Forum Administrator

LMC Forum copyright © 2007 - 2018 Lancia Motor Club Ltd

Powered by SMF 1.1.20 | SMF © 2006-2011, Simple Machines
Page created in 0.042 seconds with 22 queries.