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Author Topic: Weyburn engines  (Read 3108 times)

gribeauval

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Weyburn engines
« on: September 11, 2009, 10:48:47 PM »

I am currently building a second model of the RNLB Thomas McCunn, this time at 1/12th. As with the 1/16th model it will be a display model with interior details. I was sent pictures of a surviving Weyburn C4 petrol engine, two of which were the original power plants, by a member of this forum, Lance aka furball. This has allowed me to make a better representation of the engines for the model, so thank you Lance and I hope you like the results. ;)

1 & 2 : A block of wood was laminated to give me the basic size for the main cylinder block, marked out and cut/shaped to size.

3  : The scrap box was raided for tubes, rods and strip to make the basic engine /gearbox shapes.

4  : After sanding and shaping the whole assembly was given a couple of coats of primer.

5  : The motors for slowly spinning the props were sleeved to make them fit into the end of the gearbox housings.

6  : After a little more work the whole assembly was painted with two coats of white paint and the bolt heads painted black.

7,8,9 & 10 : The brass starting handles were then made as well as the polished copper air intakes. These were raised to allow the engines to run under water in the event of the engine room flooding.

These engines will be fitted into the model at a later date.
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Martin [Admin]

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Re: Weyburn engines
« Reply #1 on: September 12, 2009, 07:23:14 AM »


Not lost your touch gribeauval! Wonderful.
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swampbug

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Re: Weyburn engines
« Reply #2 on: September 12, 2009, 07:45:03 AM »

Oh thay are magnificent even my wife took interest and said there really good  :-))
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Bunkerbarge

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Re: Weyburn engines
« Reply #3 on: September 12, 2009, 02:33:52 PM »

Absolutely beautiful, scratchbuilding at it's best.  What catches my interest though are those exhausts coming directly out of the rocker covers.  I'd like to see a digram of the internal arrangement to see how they work.  I wonder where the silencers were?

Fantastic build as always, I can't wait to see it progress.
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gribeauval

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Re: Weyburn engines
« Reply #4 on: September 12, 2009, 06:26:44 PM »

Absolutely beautiful, scratchbuilding at it's best.  What catches my interest though are those exhausts coming directly out of the rocker covers.  I'd like to see a digram of the internal arrangement to see how they work.  I wonder where the silencers were?

Fantastic build as always, I can't wait to see it progress.

Those copper tubes aren't the exhausts, they're the air intakes to the carburettors which are sealed inside the outer covers with the rockers below them. The exhausts go downwards and the silencers are beneath the engines then they are piped back up to exit from the funnel. This arrangement allowed the engine room to be flooded and the engines keep running as everything was watertight. All that was needed was for the intakes to be above the water level.
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furball

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Re: Weyburn engines
« Reply #5 on: September 17, 2009, 01:10:57 PM »

Looking good.


Lance
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gribeauval

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Re: Weyburn engines
« Reply #6 on: May 05, 2010, 08:36:40 PM »

Quick update on the engines.

First two pictures are of the hull that was built to take the Weyburns. The last three are of the engines fitted into the engine room of the lifeboat along with some of the detailing added.


Mike
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DickyD

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Re: Weyburn engines
« Reply #7 on: May 06, 2010, 08:28:57 AM »

Wonderful as usual Mike. :-))
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gribeauval

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Re: Weyburn engines
« Reply #8 on: May 28, 2010, 10:22:26 PM »

The Thomas McCunn with her Weyburn engines is now just about ready to go to her new home in the museum at Longhope in the Orkneys alongside the full size boat.

Mike

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DickyD

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Re: Weyburn engines
« Reply #9 on: May 29, 2010, 01:31:55 PM »

Another beautiful model Mike. :-))
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craftysod

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Re: Weyburn engines
« Reply #10 on: May 29, 2010, 02:22:12 PM »

Another outstanding model Mike
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gribeauval

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Re: Weyburn engines
« Reply #11 on: May 29, 2010, 05:00:22 PM »

Thanks gents  :-))   Just making the transport case then it's a June delivery to Scotland.

Mike
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vintagent

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Re: Weyburn engines
« Reply #12 on: May 29, 2010, 07:03:07 PM »

Not a big Lifeboat fan for some unaccountable reason, but my word, that could turn a chap's head.. Very nice work and I do like a man who can make engines out of wood.  Splendid, indeed.

Regards,
Vintagent
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