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

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Pipescs
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Location: Lester Alabama

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

Postby Pipescs » Wed Sep 27, 2017 5:25 pm

This last week I ordered material and tools to work on the brake assembly for the trailing truck. Mostly the Collets I would need and various steel. This all came from McMaster Carr out of Atlanta. It is nice to place an order on line prior to lunch one day, and get it the next day when you get home from work.

Another problem I am coming back to is a weak point in the frame. In the original Lyn design there is a bolt on, rear frame extension. I have greatly extended this piece and it causes an issue at the joint.


DSC_4929.jpg
Six Bolt Joint


This joint slips no matter how much I tighten the bolts. So the nose and tail of the frame sag leaving the middle high. I have leveled it all up and am planning on drilling thru the center of each of the lap plates in two places down the middle. I will then ream and insert half inch, tapered dowel pins. To ensure they are locked forever I am going to try a recommended Loctite 603 Structural Adhesive and primer.

DSC_4923.jpg
Tapered pins and reamer


DSC_4926.jpg
Cost about as much as liquid gold by the way.


I believe the dowel pins and six bolts should lock the two plates permanently in place

To get ready for this, I am removing the rear frame for cleaning and painting along with the rear drivers and axles as I will need clearance room when I taper ream the four dowel pin holes.
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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Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

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

Postby Pipescs » Wed Sep 27, 2017 5:26 pm

I should mention, that should all this fail the whole thing is going to the welding table.
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
Posts: 1741
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

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

Postby Pipescs » Thu Sep 28, 2017 8:06 pm

Most of the time in the shop tonight was removing the rear frame, disconnecting the Stevenson Link Gear, and dropping the rear Driver.

Once that was all accomplished I put the frame back together and used levels to square it all up with the frame tops parallel.

After bolting the parts together with a couple of bolts I drilled the holes on one side to a size large enough to start the tapered reamer.

I have taken them to a point a little more than half the pin length but as I have to grind the excess off, I am thinking of sinking them a little more and only grinding on the back side.

DSC_4930.jpg


DSC_4932.jpg
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
Posts: 1741
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

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

Postby Pipescs » Sat Oct 07, 2017 6:32 am

The tapered pins in the frame joint worked out great. They are all ground to length and in place. I will be removing the rear frame section to be able to finish up mounting the rear coupler and other items so I will not fix them in place with Loctite 603 until I have finished up the details back there.

I have also been working on the brakes for the rear truck. Hope to get a few hours in today.

DSC_4942.jpg
New Brake Hangers out of 1/8 X 1/2 CRS
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
Posts: 1741
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

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

Postby Pipescs » Sat Oct 07, 2017 8:59 am

This is not the way I am planning on hanging them but it was a good way to check the fit of the parts. There are no drawings at this stage as I am simply cutting to fit and hoping it all works when you pull the lever

DSC_4947.jpg
Fitting up
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
Posts: 1741
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Postby Pipescs » Sun Oct 08, 2017 9:40 pm

IN trying to put brakes on the Rust Bucket, I am using the Lucky 7 Drawings by Don Young. These drawings were in Live Steam Magazine back in the 1970 period

Don Young  Brake Drawing.JPG
Drawings by Don Young


Don Young Brake Drawing N0.2.JPG
Drawings by Don Young


I have an issue that I brought on myself when I made the swing arms on the bolster longer. This was to allow more swing on the rear truck to deal with the smaller radius curves we have at our track verses the original that Don designed to.

My block is lower and will interfere with the brake rod that runs under it. I will be cutting the block away as Don shows in these drawings and trying a few other things.
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
Posts: 1741
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Postby Pipescs » Fri Oct 13, 2017 5:01 pm

Still working it. I have all the parts to hang the brakes done. Next is the linkage to pull them together
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
Posts: 1741
Joined: Wed Feb 03, 2010 10:16 pm
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Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

Postby Pipescs » Sun Oct 15, 2017 9:28 am

Yesterday was one of those nice days in the house were the yard got cut and I caught up on all the things that are running behind here. With everyone gone for the day after the work was finished I made it down to the shop. Of course I should have been at the club track day, so there is some guilt. Forgive me Scott.

I managed to start painting the brake hanger and brake shoe parts.

As I am starting the brake linkage parts I am concerned that the brake rod will be low on the track. I would like some advice here on how low this can be.

DSC_4955.jpg


Due to the extended swing link rods the bolster is lower to the ground than originally drawn by Mr. Young. So I removed a little from the bottom of the block. I realize now the rod will still impact the hinge points if I get it too high.

DSC_4961.jpg


I will be making a variation on some of the parts drawing for the Lucky 7 for the Linkage. Primarily these parts

Brake Lever Guide.JPG


Brake Beam Strut.JPG


Brake Lever Rod.JPG
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

User avatar
Pipescs
Posts: 1741
Joined: Wed Feb 03, 2010 10:16 pm
Location: Lester Alabama

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

Postby Pipescs » Sun Oct 15, 2017 4:31 pm

I drew this up in solid works as it is the next piece of the puzzle

Brake Lever Guide - Copy.JPG


I made this piece longer than the original as I want to bolt it to a ledge at each end to make it more rigid.

I had to lengthen it out to 5.5 inches

DSC_4964.jpg


The brake hanger may be a little too long and have to be shortened

DSC_4971.jpg
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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makinsmoke
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Location: Texas Hill Country

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

Postby makinsmoke » Sun Oct 15, 2017 10:23 pm

Charlie,
Great work! Thanks for posting.

Some trucks have the actuating rod running over
the top of the truck bolster. I guess you just
lengthen the top portion of the levers?

Take care,
Brian

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

Postby Pipescs » Mon Oct 16, 2017 4:25 am

I had not thought of this. Let me look at it...
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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makinsmoke
Posts: 1677
Joined: Thu Jul 10, 2003 12:56 pm
Location: Texas Hill Country

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

Postby makinsmoke » Wed Oct 18, 2017 8:32 am

Hi Charlie,
One of the arrangements (modern?) has the actuating lever connector running through the bolster. The main rod runs over the bolster.
I believe this is the arrangement on the Santa Fe
caboose 2259 in Bartlesville, Oklahoma with ASF
A-3 Ride Control trucks.

Here's a very informative site:
http://techinfo.wabtec.com/DataFiles/Le ... P-2008.pdf

Take care,
Brian


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