Unknown Engine…

A special section just for steam engines and boilers, as without these you may as well fit a sail.
Post Reply
Bahtz
Just Starting Out
Just Starting Out
Posts: 5
Joined: Wed Jun 24, 2026 4:21 pm
Boat Name: No Boat Yet

Unknown Engine…

Post by Bahtz »

Hi there

New to the forum and recently picked up an engine which I had hoped may be able to run a smaller launch 15’ or so.

It has two 2” cylinders with a stroke about 1.5-1.75”. The head appears to maybe be bronze? With brass pistons?

It’s about 15” tall x 10” wide and 7 deep.

It’s missing a few parts (mostly bolts), and the piping.

My plan is to restore it, polish and clean it up and tidy up any areas that need attention.

Any thoughts on a make/designer would be appreciated. It has a cross head piston attachment for a water pump by the looks of it.


Cheers
Markus
Attachments
IMG_1415.jpeg
IMG_1415.jpeg (192.28 KiB) Viewed 3592 times
IMG_1414.jpeg
IMG_1414.jpeg (122.46 KiB) Viewed 3592 times
IMG_1413.jpeg
Bahtz
Just Starting Out
Just Starting Out
Posts: 5
Joined: Wed Jun 24, 2026 4:21 pm
Boat Name: No Boat Yet

Re: Unknown Engine…

Post by Bahtz »

Couple more pics
Attachments
IMG_5017.jpeg
IMG_1417.jpeg
IMG_1417.jpeg (142.01 KiB) Viewed 3591 times
IMG_1416.jpeg
IMG_1416.jpeg (121.51 KiB) Viewed 3591 times
Bahtz
Just Starting Out
Just Starting Out
Posts: 5
Joined: Wed Jun 24, 2026 4:21 pm
Boat Name: No Boat Yet

Re: Unknown Engine…

Post by Bahtz »

More
Attachments
IMG_1483.jpeg
IMG_1483.jpeg (173.69 KiB) Viewed 3591 times
IMG_5018.jpeg
IMG_5018.jpeg (185.34 KiB) Viewed 3591 times
User avatar
dampfspieler
Full Steam Ahead
Full Steam Ahead
Posts: 290
Joined: Wed Nov 18, 2009 6:59 am
Boat Name: No Boat Yet
Location: Neubrandenburg, Germany
Contact:

Re: Unknown Engine…

Post by dampfspieler »

Hi Markus,

a very interesting engine.

You can built a pump unit with a condensate pump in the middle and a boiler feed pump a the right an a circulating pump at the left side. Or you split it to every crosshead.

I have calculated the dimensions of the boiler feed pump as follows:
Bore 8 mm
Stroke 44 mm

The length of the boat should be a bit longer 17 - 20'.

Best Wishes
Dietrich
Bahtz
Just Starting Out
Just Starting Out
Posts: 5
Joined: Wed Jun 24, 2026 4:21 pm
Boat Name: No Boat Yet

Re: Unknown Engine…

Post by Bahtz »

Thnx!
Post Reply