|
Author |
Message |
Julian
Joined: 19 Apr 2010 Posts: 278 Location: Warrington
|
Posted: Mon Apr 09, 2012 8:15 pm Post subject: Aveling DX8 governor problems. |
|
|
The governor on the Ruston CSB engine on my 1941 Aveling DX8 motor roller is a bit past its sell by date and the engine is a little reluctant to idle reliably, below are three pictures, the first two just show the general arrangement of the thing and the last is a close up of the wear (similar in 4 other places). The bob weights pivot on the shafts, but the shafts have been moving in the cast main body which is now considerably worn (which they shouldn't as they are theoretically held solid by little taper cotter pins)
Any ideas how best to make them tight in the main body again? all I can think of is to run the MIG welder over them, this would probably work but is a little drastic.
Cheers Julian. |
|
Back to top |
|
|
buzzy bee
Joined: 23 Nov 2007 Posts: 3382 Location: South Cheshire
|
Posted: Tue Apr 10, 2012 6:53 am Post subject: |
|
|
Has the Forum been introduced to the DX8?
Bar welding, could you not bush them? I might not be able to, someone handy at that sort of thing could, I know a man good rates...., but then I think I would want to weld them up and drill them again if I were to do them myself.
Cheers
Dave |
|
Back to top |
|
|
ukdave2002
Joined: 23 Nov 2007 Posts: 4104 Location: South Cheshire
|
Posted: Tue Apr 10, 2012 7:14 am Post subject: |
|
|
I think from looking at the photo's I'b be inclined to bush them, welding can introduce other challenges on cast/machined components.
Dave |
|
Back to top |
|
|
Julian
Joined: 19 Apr 2010 Posts: 278 Location: Warrington
|
Posted: Tue Apr 10, 2012 8:12 am Post subject: |
|
|
Thanks, I'm going to have a go at turning up some bushes, first I'll have to get the housing drilled and reamered out so I know what need to be done bushing wise.
One of those jobs that you wished you'd not started
Julian. |
|
Back to top |
|
|
ukdave2002
Joined: 23 Nov 2007 Posts: 4104 Location: South Cheshire
|
Posted: Tue Apr 10, 2012 9:08 am Post subject: |
|
|
Drilling oval holes round requires a really rigid set up to stop the drill wandering off the required centre, it also require a hole slightly larger than the maximum width of the oval.
I have done it on a smaller scale by grinding the opening to something like round (and on centre) with a grind stone on a dremel, and then using a milling cutter rather than a drill bit before reaming, not the way a professional machine shop would tackle it .... sometimes needs must!.
Dave |
|
Back to top |
|
|
buzzy bee
Joined: 23 Nov 2007 Posts: 3382 Location: South Cheshire
|
Posted: Wed Apr 11, 2012 12:03 am Post subject: |
|
|
I think Dave has explained my way I would do it too, or take it to a man to drill, not a huge job.. |
|
Back to top |
|
|
Julian
Joined: 19 Apr 2010 Posts: 278 Location: Warrington
|
Posted: Wed Apr 11, 2012 6:57 am Post subject: |
|
|
buzzy bee wrote: | I think Dave has explained my way I would do it too, or take it to a man to drill, not a huge job.. |
I've got a drill - it's Clive's Dad's (ex) Modig vertical mill, ex British Aerospace tool room!
Julian. |
|
Back to top |
|
|
|