Search found 1757 matches

by Lopez Mike
Sat Mar 28, 2020 3:10 pm
Forum: Technical - Engines and Boilers
Topic: separating a very reluctant flanged joint
Replies: 7
Views: 215

Re: separating a very reluctant flanged joint

It might be enough just to get it started. Another brain storm would be to tap one of the flanges finishing up with a bottoming tap (3/4" fine?) and force them apart with some cap screws. There is the old standby uncontrolled method of filling the whole thing up with water and freezing it but I'm pr...
by Lopez Mike
Fri Mar 27, 2020 11:22 pm
Forum: Technical - Engines and Boilers
Topic: separating a very reluctant flanged joint
Replies: 7
Views: 215

Re: separating a very reluctant flanged joint

Is there a way to re-assemble it without those 5/8" nuts and arrange for a deliberately "failed" hydro test?
by Lopez Mike
Fri Mar 20, 2020 3:48 am
Forum: Technical - Engines and Boilers
Topic: Cylinder machining
Replies: 2
Views: 292

Cylinder machining

I cannot find that this series of YouTube videos has been posted to the forum.

A welcome tutorial for those who cannot easily find suitable castings.

https://www.youtube.com/watch?v=vhvVQg19jgs
by Lopez Mike
Mon Mar 16, 2020 6:57 pm
Forum: Technical - Engines and Boilers
Topic: Quad versus twin compound
Replies: 12
Views: 1549

Re: Quad versus twin compound

For several reasons including efficiency, boiler cleanliness and that I steam mostly on salt water, exhausting up the stack isn't going to happen. The question for me is how to obtain an air blast in the most efficient way. Maybe the centrifugal automotive supercharger. Maybe an engine crank driven ...
by Lopez Mike
Sat Mar 14, 2020 3:14 am
Forum: Technical - Engines and Boilers
Topic: Quad versus twin compound
Replies: 12
Views: 1549

Re: Quad versus twin compound

Thanks Jack. A V-belt is quiet and easily slacked with an idler wheel. Or I could arrange some sort of mechanism whereby opening the fire door closes a damper in the duct from the fan to the ash pan. Or both. I've lost a couple of races (Race? Surely not us!) at gatherings. And by rather narrow marg...
by Lopez Mike
Fri Mar 13, 2020 4:30 am
Forum: Technical - Engines and Boilers
Topic: Quad versus twin compound
Replies: 12
Views: 1549

Re: Quad versus twin compound

I would be most interested to know more about the engine driven fan. Is it in the stack or blowing into the firebox? And if into the firebox, how do you shut it off for adding fuel? And how is it arranged mechanically? I mean the drive train from the engine to the fan.
by Lopez Mike
Thu Mar 12, 2020 3:34 pm
Forum: General Steamboat stuff
Topic: Steam yachts and launches 1887
Replies: 2
Views: 626

Re: Steam yachts and launches 1887

Fred,
My Strath Warrego 3 x 4 with piston valve rings runs fine with nothing beyond my feeding it saturated steam. In this size of engine the relative velocity between the rings and bore is rather low.

Mike
by Lopez Mike
Sun Jan 12, 2020 3:02 pm
Forum: General Steamboat stuff
Topic: Steamboat SOLD
Replies: 1
Views: 696

Re: Steamboat SOLD

Ah, yes. That works out to less than $100/inch! Very good.

On a less facetious note, there is still a 32 foot hull with a new boiler and a very nice engine sitting in Olympia, WA. It's been parked on its shipping pallet for over a year. I suspect that the first 10K would walk away with it.
by Lopez Mike
Sat Jan 11, 2020 1:32 am
Forum: Technical - Engines and Boilers
Topic: Re-using oil
Replies: 4
Views: 947

Re: Re-using oil

O.K., Wes. Tell Kelly how big the engine is.
by Lopez Mike
Fri Jan 10, 2020 12:10 pm
Forum: Technical - Engines and Boilers
Topic: Re-using oil
Replies: 4
Views: 947

Re: Re-using oil

Unless there is some bearing failure in progress, the only thing getting mixed into your used oil should be water. And I can't think of any reason that some water mixed in with the oil would be a problem. If you really want to reuse your oil then just letting it settle ought to do the trick. And may...