Converting Bachmann Precedent

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jon price
Posts: 641
Joined: Mon Jun 07, 2010 2:34 pm

Converting Bachmann Precedent

Postby jon price » Sat Dec 18, 2021 11:57 am

Anyone had a look at the Bachmann Precedent yet with a view to rewheeling?
Connah's Quay Workshop threads: viewforum.php?f=125

triumph3
Posts: 115
Joined: Mon Jul 18, 2011 12:52 pm

Re: Converting Bachmann Precedent

Postby triumph3 » Sat Dec 18, 2021 4:07 pm

I have started by looking at the tender. Clearances are a bit tight at approx 21.8mm but there is enough meat to file/ grind back. Not dismantled the loco yet but there seems plenty of clearance.
The tender axles are used for pick ups using a wiper system onto a bush on the axle, so I suspect that the axles will need modifying to retain the pick up arrangements. I would not want to rely on just the loco pick ups.

I will be having a closer look in the new year. It is a fabulous model, the lining is particularly fine. I wish the NRM would do a lined version of the coal tank.

David

Philip Hall
Posts: 1953
Joined: Mon Aug 10, 2009 7:49 pm

Re: Converting Bachmann Precedent

Postby Philip Hall » Sat Dec 18, 2021 5:43 pm

It sounds like the tender pickup arrangements are the same as other engines I've done, where the axle ends are 2mm. I have just made up new axles, slightly shorter than the Bachmann ones, rounding off the ends, mount the new wheels on them and fit after arranging any extra clearance inside the frames. The pickup strips that bear on the axles can be twisted through 90 degrees and bent to bear on the back of the tyres. A bit of extra weight and all done, apart from any extra detailing work requires.

I found this a lot simpler than trying to reuse the existing split axle arrangement.

Philip

philip-griffiths
Posts: 134
Joined: Wed Aug 18, 2010 9:44 pm

Re: Converting Bachmann Precedent

Postby philip-griffiths » Tue Dec 21, 2021 4:26 pm

triumph3 wrote:
I will be having a closer look in the new year. It is a fabulous model, the lining is particularly fine. I wish the NRM would do a lined version of the coal tank.

David


Understand the sentiment, but the NRM only tend to produce models of locos in the collection. The Coal Tank is not in the national collection but is cared for by the Bahamas Society on behalf of the National Trust.

Regards


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