The following warnings occurred:
Warning [2] Undefined variable $search_thread - Line: 60 - File: showthread.php(1617) : eval()'d code PHP 8.1.28 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/showthread.php(1617) : eval()'d code 60 errorHandler->error_callback
/showthread.php 1617 eval



Austinsevenfriends › Austin Seven Friends Forum › Forum chat... v
The chance of new crankshafts and rod etc

Thread Rating:
  • 1 Vote(s) - 4 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Threaded Mode
The chance of new crankshafts and rod etc
Charles P Offline
Eternal Repairer
*****
Joined: Aug 2017 Posts: 1,435 Threads: 59
Reputation: 17
#21
15-09-2019, 05:25 PM (This post was last modified: 15-09-2019, 05:26 PM by Charles P.)
Let's bear in mind that the current Renault 4 shell bearings are metric anyway.
They just happen to be very close to 1.5"

Charles
Reply
Zetomagneto Offline
Posting Freak
*****
Joined: Aug 2017 Posts: 952 Threads: 38
Reputation: 7
#22
15-09-2019, 05:40 PM
        Hi Chris, this is very original.People have wanted smooth running Austin Seven engines for years.
If Tony can come up with a better product I am all for it. I don't care about having a non original crank, that's going too far.
Reply
Alan Offline
Legend
*****
Joined: Aug 2017 Posts: 1,253 Threads: 32
Reputation: 28
Location: Cheshire
Car type: Race Ulster, 1926 Special, 1927 Chummy, 1930 Box
#23
15-09-2019, 06:28 PM
Well if someone wants to start making those..........
Alan Fairless
Reply
Bob Culver Offline
dogged member, NZ
*****
Joined: Aug 2017 Posts: 2,748 Threads: 31
Reputation: 95
Location: Auckland, NZ
#24
15-09-2019, 08:25 PM (This post was last modified: 15-09-2019, 08:29 PM by Bob Culver.)
Most are more or less familair with Phoenix cranks even if never seen one but the many references to others is a mystery to those not in the know. Can anyone summarise please.
If going to be cut from a billet with NC machinery the latest would not be a complication. Is there a ring of buried cap screws to hold it together?
If not going to be revved wildly life may not be increased. The rigidity would concentrate bending into crankpins.
There are some great shots on Youtube of cranks being cut from billets.
Reply
Ian Williams Offline
Freak
*****
Joined: Aug 2017 Posts: 1,666 Threads: 46
Reputation: 25
Location: Auckland NZ
Car type: 36 Nippy, 31 RM, 38 Special, 24 Works Rep
#25
15-09-2019, 08:51 PM
When someone mentions a Billet crank I immediately think of the type in Zeto's pictures, I was not sure exactly what Tony had in mind, but if it's one of those........!!!

PS I realise it is not.
Black Art Enthusiast
Reply
Tony Betts Offline
Posting Freak
*****
Joined: Aug 2017 Posts: 1,808 Threads: 99
Reputation: 21
#26
15-09-2019, 09:52 PM
i keep looking at gene`s crank, and cant work out why its made in two parts???

i need more beer.

tony
Reply
Zetomagneto Offline
Posting Freak
*****
Joined: Aug 2017 Posts: 952 Threads: 38
Reputation: 7
#27
15-09-2019, 09:59 PM
It is too big to go in either end, Tony I think you've had too much beer!
Reply
Ruairidh Dunford Offline
Bearded Wizard
*******
Joined: Mar 2015 Posts: 5,187 Threads: 223
Reputation: 59
Location: Scotchland
#28
15-09-2019, 10:02 PM
I always presumed Laystall cranks were made in two parts so that they could be installed.
https://gordonenglandregister.wordpress.com/
Reply
Alan Offline
Legend
*****
Joined: Aug 2017 Posts: 1,253 Threads: 32
Reputation: 28
Location: Cheshire
Car type: Race Ulster, 1926 Special, 1927 Chummy, 1930 Box
#29
15-09-2019, 10:17 PM
I need more beer too, but it’s like the wizard says. I believe they have a reputation for reverting to two pieces, not sure how justified this is. It doesn’t seem that difficult to me.
Alan Fairless
Reply
Tony Betts Offline
Posting Freak
*****
Joined: Aug 2017 Posts: 1,808 Threads: 99
Reputation: 21
#30
16-09-2019, 07:59 AM
Fear enough.

But why not do the same as they done on the original counterballanced engines. And open up the hole in the rear end.

It's a bit like taking a part of a lathe, when you put it back on. It's never 100% in the same place.

Surely a two piece crank would be the same?

Tony.
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)