Model Boat Mayhem

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Turning a crankshaft  (Read 2884 times)

Onetenor

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 268
  • Model Boat Mayhem is Great!
  • Location: Meliden N Wales
Turning a crankshaft
« on: July 11, 2016, 11:43:37 pm »

 I have a pair of matched diesels but one has a broken crankshaft. I wondered if anyone can turn me a new one. I will pay a reasonable price
   PM me if you can help.
                                           Thanks John
Logged

Martin (Admin)

  • Administrator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 23,865
  • Location: Peterborough, UK
    • Model Boat Mayhem
Re: Turning a crankshaft
« Reply #1 on: July 12, 2016, 01:09:40 am »

Hi John,

What engine?

Can you post a photo of the broken shaft?
Logged
"This is my firm opinion, but what do I know?!" -  Visit the Mayhem FaceBook Groups!  &  Giant Models

Onetenor

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 268
  • Model Boat Mayhem is Great!
  • Location: Meliden N Wales
Re: Turning a crankshaft
« Reply #2 on: July 13, 2016, 10:57:09 pm »

Engine is 1.47 cc JB Atom diesel. Broken crank has been lost. But I can send the one from it's twin. I can't do photos anyway   Thanks for asking
Logged

Martin (Admin)

  • Administrator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 23,865
  • Location: Peterborough, UK
    • Model Boat Mayhem
Re: Turning a crankshaft
« Reply #3 on: July 13, 2016, 11:23:31 pm »


Something like this?


Logged
"This is my firm opinion, but what do I know?!" -  Visit the Mayhem FaceBook Groups!  &  Giant Models

Onetenor

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 268
  • Model Boat Mayhem is Great!
  • Location: Meliden N Wales
Re: Turning a crankshaft
« Reply #4 on: July 14, 2016, 12:29:27 am »

EXACTLY LIKE THAT just not as {-)  clean at present
Logged

derekwarner

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 9,552
  • Location: Wollongong Australia
Re: Turning a crankshaft
« Reply #5 on: July 14, 2016, 01:27:56 am »

John....without seeming negative  :o...

I suggest it is a near impossible task to manufacture an acceptably toleranced, replacement crankshaft with hardened with ground journals O0 with a T.I.R of 0.000" & capable of rotating at 15,000 RPM ......cost effectively >>:-(

Derek
Logged
Derek Warner

Honorary Secretary [Retired]
Illawarra Live Steamers Co-op
Australia
www.ils.org.au

Onetenor

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 268
  • Model Boat Mayhem is Great!
  • Location: Meliden N Wales
Re: Turning a crankshaft
« Reply #6 on: July 15, 2016, 10:35:22 am »

That is what  i feared  {:-{ :((
Logged

Onetenor

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 268
  • Model Boat Mayhem is Great!
  • Location: Meliden N Wales
Re: Turning a crankshaft
« Reply #7 on: July 15, 2016, 10:49:48 am »

Would have done it myself but my lovely little 3" Myson got stolen along with all it's kit.Stolen to order from my lock up. The only other thing was a pair of mirror finished pliers in hardened stainless medical equip. Cut through any thing. Scumbags >:-o
Logged
Pages: [1]   Go Up
 

Page created in 0.107 seconds with 22 queries.