Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

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Fender
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Post by Fender » Thu Oct 08, 2020 9:10 am

I asked Charlie how he was welding the stays, and he sent these photos. He pre-positions the ring for filler metal when making the first TIG pass.
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Dan Watson

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Pipescs
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Post by Pipescs » Thu Oct 08, 2020 10:04 pm

Evening all,

Just received a very nice email from Marty Knox explaining this is not the preferred method of welding in the stay bolts.
The stay is supposed to be welded to the sheet but you want to leave as much of the rod as you can intact. You are supposed to see the rod in the center of the weld. There is no way I would put a ring of TIG filler in the weld like that. You can't see that it is all melting.
Marty was very nice in offering instruction without stomping my toes.

As a beginner at this it is always appreciated when friendly advice is offered.

All should remember I was brought into this hobby by Larry Kombrink who more than once commented "Pipes, you can't be that stupid".

So needless to say I am pretty thick skinned and open to correction and guidance.

Charlie
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

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Pipescs
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Post by Pipescs » Mon Nov 16, 2020 3:11 pm

Back again,

After working with Marty and Pontiac Guy I am now corrected on the welding of stay-bolts. Not saying I am an good at this, just getting better.
DSC_5827.jpg
All the stays except the three on the throat sheet are completed.

These three will be finished after the boiler is stood on end to weld in the front tube sheet.

Today I made up the fixture to hold the front tube sheet in place where I can tack it into place.
DSC_5829.jpg
I drove over to Pulaski TN today and ordered the Schedule K copper for the Tubes.
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

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Marty_Knox
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Post by Marty_Knox » Mon Nov 16, 2020 4:07 pm

Charlie, did you ream the holes in the front tube sheet oversize? It's a lot easier to slide the tube in if it's about .010" larger than the nominal diameter of the tube. For instance, when I use 5/8" OD tubes I ream the front tube sheet .635". I still ream the rear tube sheet .625".

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Pipescs
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Post by Pipescs » Mon Nov 16, 2020 5:38 pm

Sure did, The tubes are 3/4 id Schedule K Copper. Reamed the Rear tube sheet to .75 and then re-reamed it after welding. The front sheet is oversized to .009 over and the will be re-reamed after welding.

Pontiacguy gave me three short lengths of copper and they are a smooth slide fit in the front sheet and will be a press fit in the firebox end.
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

Pontiacguy1
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Post by Pontiacguy1 » Tue Nov 17, 2020 8:49 am

He means .875". not 3/4"

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Pipescs
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Post by Pipescs » Thu Nov 19, 2020 6:47 pm

Picked up the Copper Pipe for the Tubes tonight. I am fast running out of excuses to not finish this part of the project.
Charlie Pipes
USMC Retired

Current Projects:

2.5 Baldwin 2-4-2/2-4-4/0-4-4 Conversion (What ever)
Little Engines American Restoration
Bobber Caboose

Berkman
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Post by Berkman » Thu Nov 19, 2020 9:48 pm

you'll have it under steam before long!

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