Author Topic: The National Has traded Hands Again.  (Read 2810 times)

Jake65mm

  • Jr. Member
  • **
  • Posts: 77
    • View Profile
The National Has traded Hands Again.
« on: September 28, 2016, 10:38:21 PM »
So I worked out a deal dangling an older 10/2 lister under Butch's nose and left with his National, not without adding a little to the pot of course. It is such a beautiful and well built engine I just feel if I passed it up I would seriously be kicking myself in the butt later on. Once I got it home I decided I was going to go through it and tighten some things up on. I ended up getting a new wrist pin made for it out of 4140 hardened ground and polished, I made a new small end bronze bushing. Im getting the crank mains polished and the con rod journal ground round. I also put new rings in it and the first ring grove was a tad out of spec so I trued and widened the grove so I could run a .030 spacer. All in all the engine is in excellent condition but it had just been ran a little thats all. One thing I felt was interesting is I took the fuel pump apart to review the internals for signs of wear and it looked new, but hear is the the interesting part it has a 8mm fuel element. So in perspective Dads Ruston 1xHR has the same as my Listers 6.5mm, the displacement on the Ruston is 186CI and the National is 213CI. So its not that much larger of a engine to have that much more fuel going to it, maybe that explains whys its rated at 13Hp vs the Ruston which is only 8hp.  
http://i.imgur.com/ObD4LBnl.jpg
http://i.imgur.com/PBWOo17.jpg
http://i.imgur.com/niC6KkZl.jpg
http://i.imgur.com/mMQ3T3ql.jpg
http://i.imgur.com/FQFoV3dl.jpg
« Last Edit: September 28, 2016, 10:39:52 PM by Jake65mm »

dieselgman

  • Hero Member
  • *****
  • Posts: 3141
    • View Profile
    • Lister Parts
Re: The National Has traded Hands Again.
« Reply #1 on: September 28, 2016, 11:46:54 PM »
I see that your piston has a steel top ring land insert... some of the Lister HR industrial models have that feature as well. The mark of a beefed up machine for heavy-duty long-running. I am surprised that you have that much wear in that part.

She's a beauty!

dieselgman
Ford Powerstroke, Caterpillar 3304, Cummins M11, Too many Listers to count...

Jake65mm

  • Jr. Member
  • **
  • Posts: 77
    • View Profile
Re: The National Has traded Hands Again.
« Reply #2 on: September 29, 2016, 12:02:17 AM »
Truthfully it wasn't that bad it measured .194 and the rings are .1875 wide.

dieselgman

  • Hero Member
  • *****
  • Posts: 3141
    • View Profile
    • Lister Parts
Re: The National Has traded Hands Again.
« Reply #3 on: September 29, 2016, 01:55:47 AM »
Does your fire ring have parallel top and bottom sides? I do not know about National, but have seen some fire rings shaped like a keystone, (to better accommodate carbon buildup etc.). They are meant to be fairly loose. Did you check book specs for yours regarding that clearance?

dieselgman
Ford Powerstroke, Caterpillar 3304, Cummins M11, Too many Listers to count...

Jake65mm

  • Jr. Member
  • **
  • Posts: 77
    • View Profile
Re: The National Has traded Hands Again.
« Reply #4 on: September 29, 2016, 03:55:40 AM »
It doesn't have a keystone style top ring, the ring and grove are square just like the other 3.
« Last Edit: September 29, 2016, 03:09:23 PM by Jake65mm »

38ac

  • Hero Member
  • *****
  • Posts: 1777
    • View Profile
Re: The National Has traded Hands Again.
« Reply #5 on: October 03, 2016, 01:57:35 PM »
Those top ring lands really take a beating in a slow speed diesel. I have yet to take one down that had a good top ring groove. Unless it is a Lister parts are pretty much unavailable. Measuring worn Lister pistons against new has taught me that the wear is pretty much towards the crankshaft Thus when I re cut the grooves the top side is cut only enough to true it. Then the bottom is cut until true plus enough to get the spacer, or sometimes a wider ring is used.  I always place the spacer under the ring and this keeps the the top of the ring as close to OEM as can be done and still square things up ;)

I lost another one this week as the MP Blackstone is going to a new home where it will earn a living once again.  I thought for a short time that I needed to find another project engine to replace it but a quick count showed 12  project engines currently in stock. Guess Ill hold off a while. I am sure the National will be a pure jewel when Jake is done with it.
Butch
Collector and horder of about anything diesel