Office of Steam Logo_1

Author Topic: Tiny Power "W" Marine Engine  (Read 69 times)


  • Newbie
  • *
  • Posts: 12
Tiny Power "W" Marine Engine
« on: November 01, 2023, 07:56:26 am »
After owning this kit for years, I have started working on it.  I picked it up at an auction at least 12 years ago.  This is a Tiny Power "W" Marine engine.  It is quite large, a real working motor, not just a model.  It is designed to turn a 14" - 15" propeller on an 18' boat and will produce 3Hp at 100PSI.  I still have a long way to go.

The first picture is of the crankshaft throws.  This is on my 1940's mill.  I added DRO for X, Y and Z.  Works well, but is not really big enough for this kit, especially the cylinder blocks.

The second picture is machining the rough cylinder castings at my brothers on his Bridgeport.

The third picture is boring the cylinders on his Bridgeport.

The final picture is the completed crankshaft, base and connecting rods.

I am working on the lower cylinder heads that attach the cylinders to the vertical risers with the cross slide.  I will post more pictures as I make progress.

Gene Down

St Paul Steam

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 4577
  • Location: St. Paul Indiana
Re: Tiny Power "W" Marine Engine
« Reply #1 on: November 01, 2023, 09:20:34 am »
A mighty fine start on it Gene, you certainly have the shop/equipment for the job.
Bruce, St. Paul Indiana, USA
"Originality thrives in seclusion free of outside influences beating upon us to cripple the creative mind."
  Nikola Tesla


  • Global Moderator
  • Hero Member
  • *****
  • Posts: 3246
  • Wherever you go ......... there you are!
  • Location: Eastern Sierra
Re: Tiny Power "W" Marine Engine
« Reply #2 on: November 01, 2023, 10:12:59 am »
You may have a long way yet to go ..... but you have already come a long way with some really fine-looking work done that is now behind you!
"Information is not knowledge, Knowledge is not wisdom, Wisdom is not truth, Truth is not beauty, Beauty is not love, Love is not music: Music is THE BEST...   
Wisdom is the domain of the Wis (which is extinct). Beauty is a French phonetic corruption of a short cloth neck ornament currently in resurgence..."
F. Zappa ... by way of Mary, the girl from the bus.


Todd Kahill and Three of His Great Models 2017