Search found 4376 matches

by Fred_V
Mon Sep 30, 2019 7:38 am
Forum: Live Steam
Topic: sweet william cylinder head clearances
Replies: 6
Views: 698

Re: sweet william cylinder head clearances

Get rid of the automatic cocks.
by Fred_V
Wed Sep 25, 2019 4:58 pm
Forum: Live Steam
Topic: Unexpected Injector Failure Cause
Replies: 22
Views: 2623

Re: Unexpected Injector Failure Cause

Some people argue against that too. I have no complaints about what I use.
by Fred_V
Wed Sep 25, 2019 8:03 am
Forum: Live Steam
Topic: Unexpected Injector Failure Cause
Replies: 22
Views: 2623

Re: Unexpected Injector Failure Cause

Buna N
by Fred_V
Mon Sep 23, 2019 7:28 am
Forum: Live Steam
Topic: Unexpected Injector Failure Cause
Replies: 22
Views: 2623

Re: Unexpected Injector Failure Cause

I have had home made inj steam valves with orings on the stem and never had that problem. In 25 years of running I had one crack and leak. I replace them every 2 or 3 years.
What kind of oring are you using? I just used the black ones.
by Fred_V
Wed Sep 11, 2019 7:53 am
Forum: Live Steam
Topic: Throttle valve -again
Replies: 2
Views: 953

Re: Throttle valve -again

Are you actually getting real superheat? I get a small blast after the engine sits for awhile but otherwise it just drys the steam.
That is a smokebox throttle as I remember it. You may have too much smokebox heat for a ball valve. Maybe too much draft.
by Fred_V
Fri Aug 23, 2019 7:40 am
Forum: Live Steam
Topic: Walschaert Eccentric Key
Replies: 9
Views: 1858

Re: Walschaert Eccentric Key

Taper pins work nicely too. Whatever you do, don't drive a pin into a blind hole. I had to fix that for someone that did and it was a real pain to get it apart.
Fred
by Fred_V
Wed Aug 21, 2019 7:52 am
Forum: Live Steam
Topic: injector problem
Replies: 16
Views: 2307

Re: injector problem

try using a garden hose and flood water all over the the water connections from the tender. If you have an air leak this will usually plug the leak with water and make the injector pick up.
Fred
by Fred_V
Sat Aug 03, 2019 7:44 am
Forum: Live Steam
Topic: Lever-operated Gate Throttle Valve
Replies: 4
Views: 1489

Re: Lever-operated Gate Throttle Valve

I don't think it matters.
by Fred_V
Fri Aug 02, 2019 6:53 am
Forum: Live Steam
Topic: Recommendation needed for copper boiler repairs
Replies: 15
Views: 2498

Re: Recommendation needed for copper boiler repairs

A friend with this same engine had firebox leaks and could not raise steam due to pressure building and spraying on the fire.
by Fred_V
Mon Jul 29, 2019 7:05 am
Forum: Live Steam
Topic: cylinder block.
Replies: 21
Views: 3350

Re: cylinder block.

One thing to be careful about: Make sure the assembly is made with a known (and suitable) steel alloy. I knew a guy who used some steel from a scrapyard to build a set of cylinders, and the resulting fabrication was completely un-machinable when he finished! It became a doorstop. The second try wor...
by Fred_V
Sat Jul 27, 2019 12:13 pm
Forum: Live Steam
Topic: Dimensioning Valves and Ports using the Bilgram Diagram
Replies: 3
Views: 950

Re: Dimensioning Valves and Ports using the Bilgram Diagram

VALVE GEAR

Slide Valves - (Ports) dimensions in inches, as prescribed by Henry Greenly

D = diameter of cylinder
L = Piston stroke
W = Width of ports
P = Length of ports
E = Length of exhaust port
B = Thickness of port bar

W = 1/2D + 1/16
P = L/16
B = 5L/64
E = L/8
by Fred_V
Tue Jul 23, 2019 8:04 am
Forum: Live Steam
Topic: Cylinder Cocks Issue (Video)- Any Suggestions?
Replies: 14
Views: 2241

Re: Cylinder Cocks Issue (Video)- Any Suggestions?

It is getting a tiny bit of steam to the right side. It is as though the valve never gets off neutral so it cracks open and then shuts.