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BOILER BUILDING + Other Projects by STEAMHEATON
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   BOILER BUILDING + Other Projects by STEAMHEATON
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   Author  Topic: BOILER BUILDING + Other Projects by STEAMHEATON  (Read 31418 times)
ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston11.jpg - 57401 Bytes
« Reply #1020 on: Dec 21st, 2011, 3:08pm »
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Threading the piston.

http://Forums.Railfan.net/Images/LiveSteam/Piston11.jpg
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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston12.jpg - 56655 Bytes
« Reply #1021 on: Dec 21st, 2011, 3:10pm »
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Cutting threads on the mandrel.

http://Forums.Railfan.net/Images/LiveSteam/Piston12.jpg
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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston13.jpg - 63927 Bytes
« Reply #1022 on: Dec 21st, 2011, 3:12pm »
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Turning down the step for the ring retainer.

http://Forums.Railfan.net/Images/LiveSteam/Piston13.jpg
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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston14.jpg - 50821 Bytes
« Reply #1023 on: Dec 21st, 2011, 3:14pm »
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Pistons and ring retainers.

http://Forums.Railfan.net/Images/LiveSteam/Piston14.jpg
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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston15.jpg - 40820 Bytes
« Reply #1024 on: Dec 21st, 2011, 3:15pm »
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Piston assembly ready for the screws.

http://Forums.Railfan.net/Images/LiveSteam/Piston15.jpg
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SteamHeaton
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Posts: 1120
Re: BOILER BUILDING + Other Projects by STEAMHEATON
 
« Reply #1025 on: Dec 21st, 2011, 8:43pm »
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Wow Bill, the new pistons are looking great.  I can't thank you enough for your help with this  project. Ray III
 


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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston20.jpg - 59804 Bytes
« Reply #1026 on: Dec 23rd, 2011, 8:02am »
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Ray,
I'm really happy the way the new pistons are turning out.  I should have the flat head screws and the viton o-rings by the middle of next week.  Once I get them it will only take a couple of hours to finish up the project.
Bill
 
This picture shows me getting ready to find the center of the ring retainer.


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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston21.jpg - 56908 Bytes
« Reply #1027 on: Dec 23rd, 2011, 8:04am »
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Transferring  the screw holes to the piston.

http://Forums.Railfan.net/Images/LiveSteam/Piston21.jpg
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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston22.jpg - 55879 Bytes
« Reply #1028 on: Dec 23rd, 2011, 8:17am »
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Tapping the screw holes in the piston using the tapping head.  It takes longer to set up the tapping head than it does to tap the holes.  Once set up it only takes about 10 seconds to tap each hole.

http://Forums.Railfan.net/Images/LiveSteam/Piston22.jpg
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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston23.jpg - 60920 Bytes
« Reply #1029 on: Dec 23rd, 2011, 8:18am »
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Turning down the piston to 2.490".

http://Forums.Railfan.net/Images/LiveSteam/Piston23.jpg
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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston24.jpg - 28747 Bytes
« Reply #1030 on: Dec 23rd, 2011, 8:20am »
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Pistons finished to the final diameter.

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ErieAtlantic7597
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Re: BOILER BUILDING + Other Projects by STEAMHEATON
 
« Reply #1031 on: Dec 23rd, 2011, 9:30am »
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   Bill, thats some nice work. Thanks again for posting the interesting pics of the process of making segmented pistons. Don't see this too often.
 
   Thanks,  
 
   Bruce


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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston25.jpg - 65443 Bytes
« Reply #1032 on: Dec 28th, 2011, 10:21am »
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Bruce,
As you know, Ray and I go back a long way.  My first locomotive was/is Ray's first locomotive.  I sold the Raritan to Ray when he was a teenager.  I hope these new pistons with the teflon rings solves his problem.
Bill
 
This picture shows me cutting the groove for the ring.


http://Forums.Railfan.net/Images/LiveSteam/Piston25.jpg
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« Last Edit: Dec 28th, 2011, 6:54pm by ng_2-4-2 » Logged

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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston26.jpg - 48776 Bytes
« Reply #1033 on: Dec 28th, 2011, 10:23am »
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Ring and backing o-ring in the groove.

http://Forums.Railfan.net/Images/LiveSteam/Piston26.jpg
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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston27.jpg - 49602 Bytes
« Reply #1034 on: Dec 28th, 2011, 10:25am »
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Retaining ring in place.

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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston28.jpg - 36783 Bytes
« Reply #1035 on: Dec 28th, 2011, 10:27am »
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The pistons are finished except for replacing the socket head screws with flat head screws.

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SteamHeaton
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Re: BOILER BUILDING + Other Projects by STEAMHEATON
 
« Reply #1036 on: Dec 28th, 2011, 8:58pm »
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Thats fantastic Bill, thank you  so much.   We will give them a work out in about 8 weeks.  Ray III


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ng_2-4-2
Chaser
Posts: 70
Re: BOILER BUILDING + Other Projects by STEAMHEATON
  Piston29.jpg - 42283 Bytes
« Reply #1037 on: Dec 30th, 2011, 7:49am »
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UPS delivered the flat head screws yesterday.  The pistons are finished.  Off to the post office this morning and in a few days we'll know if my efforts were worth it or not.

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tomc
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Re: BOILER BUILDING + Other Projects by STEAMHEATON
 
« Reply #1038 on: Dec 30th, 2011, 8:05am »
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Bill, that is nice workmanship there. Ray should love it!
 
My question is, what holds the nut on tight on the piston end?  
 
Tom C.


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Later;

tom_srclry_com
Lost somewhere in Michigan!
SteamHeaton
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Posts: 1120
Re: BOILER BUILDING + Other Projects by STEAMHEATON
 
« Reply #1039 on: Dec 30th, 2011, 10:27am »
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Tom, The piston threads onto the rod, and the nut jams against it.   I believe there was also a thread locker [ loctite] used , but not sure.  I bought the chassis running on air ,  so I am debugging as I go.   The original aluminum pistons , were too big and when they grew  after coming up to temp. They scored the bronze liner.  I turned them down  a little and it seemed to be ok for  1 1/2 years.  While at eagle point the problem  showed up again.  I pulled the heads off when I got home.  The engineers side was scored/ scratched on the bottom of the bore from mid point to the front.  The firemans side was scored worse , it was different . The scoring on the firemans side was from top to bottom towards the outside . The entire length of the bore.   My first thought was I needed to turn the pistons down a little more.  After alot of measuring and talking to many of my live steam friends. I decided it was time to get rid of the aluminum pistons, as they were already too small, and  turning them down more was not going to solve the problem. Of the many offers to help,  Bills  offer to make  a new set of  cast iron pistons and try  a set of teflon rings , was the quickest fix, and  I liked the idea of the teflon rings.  As for the real problem , which is the alignment of the guide bars, this will be addressed once I get the pistons back.  The engineers side is not parallel with the bore, and the firemans side is  off center to the outside.  Its not off much but enough to put the aluminum piston in a position to rubb and gall causing  the scoring.  I think if a cast piston was used, this  might have never been a problem .  A long winded answer Tom, but wanted to let everybody know  why we are doing this . Bill they look great and thanks again for your help.  Ray III

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