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The St Lawrence - First Run

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miro
Senior Member
Username: miro

Post Number: 476
Registered: 11-2001


Posted on Friday, July 23, 2010 - 06:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Here's a video of the first run, after 40 years in the basement of a very old house.
Water leaks need to be attended to - gasoline leaks already fixed.
The 2 drain cocks on the side of each cylinder a a bit of a mystery. They connect to the cylinder, not the water jacket. They can be seen on the video quite clearly.
There is a water drain cock on the rear of the second cylinder. I used it to drain the water - works OK.

Here's the link.
http://www.youtube.com/watch?v=YCo745UWqQc

miro

ps - all the rotten planking on the boat hull has now been fixed. Next up will be the carving of the stern post and then sealing the hull.
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ernie
Senior Member
Username: ernie

Post Number: 1240
Registered: 01-2002


Posted on Friday, July 23, 2010 - 06:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Miro,
The pet/drain cock on the side of each cylinder is a compression release.
Neat to see it run
Ernie
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ernie
Senior Member
Username: ernie

Post Number: 1241
Registered: 01-2002


Posted on Friday, July 23, 2010 - 06:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

OOPS I mean relief cock as St Lawrence calls then in the operationg instructions
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rbprice
Senior Member
Username: rbprice

Post Number: 326
Registered: 11-2001


Posted on Friday, July 23, 2010 - 08:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

BRAVO - nicely done Miro. And interestingly the primer cups are 180 degrees from where they are "supposed" to be yet you have lots of water coming through the exhaust.

Also, you seem to be missing the stop switch on the timer handle - want a close-up photo and some sketches? It wouldn't be hard to make one.
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ernie
Senior Member
Username: ernie

Post Number: 1242
Registered: 01-2002


Posted on Friday, July 23, 2010 - 09:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Bob,
Having the heads possibly on wrong won't prevent water flow. What it will do is defeat the StL design have water flow from the very top of the water jacket which is also most likely the hottest part (around the spark plug)
Note I said possibly on wrong as I don't think Miro has had the heads off. It is possible StL made head castings with the location for the priming cup opposite. There is a core in the casting so it isn't just drill the hole and tap it on the other side.
Just my thoughts
Ernie
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miro
Senior Member
Username: miro

Post Number: 477
Registered: 11-2001


Posted on Sunday, July 25, 2010 - 11:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Thanks for the notes.
Yes Bob, I'd like to see the kill switch on the timer handle.
That would make it much easier to reverse the engine.
Miro

Work on the hull is continuing apace - expect to be applying sealer this coming week.

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