Possible Steam Leak > Forums > myLargescale.com

Subject: Possible Steam Leak

Forum Sponsored By: Quisenberry Station

Email me when someone replies to this thread.

You are not authorized to post a reply.

Author

Messages

jtutwiler

1st Class Member
Michigan City, IN

Brakeman
Posts:83

07/25/2008 8:13 AM
Hi All, I am curious about a couple of things. I have had my Accucraft Mogul for about 2 months now and I am noticing a couple of things. First there seems to be some "bubbling" (I am guessing from the steam oil) at the seam where the steam chest meets cylinders. Is this normal break in that will stop eventually or is this a problem? The other thing that I have noticed is that there seems to be steam coming into the cab from under the boiler jacket that is causing condensation on the roof of the cab. Is this evidence that there is a bigger problem with my engine? I have about 10 hours total run time on this, so any info that you can offer is most appreicated. Maybe I am just being worried about nothing... I hope

Tipton Union Timber Co. Railroad

Nick Jr

Brakeman
Posts:62

Send Message

07/25/2008 9:41 AM
I also found some condensate on the inside roof of my Mogul. I let it cool and carefully tightened up the fittings on the boiler, took out the steam valve and lubed up the shaft and seal with steam oil and it stopped. I lube up the throttle valve and seal about every third or fourth run even though I don't see the condensate any more. I may be over doing that but I have read bad things of them sticking if let cool with the valve closed tightly. Nick Jr

Kovacjr

1st Class Member
Lakewood NJ
Foreman

Foreman
Posts:367

07/25/2008 8:24 PM
The steam in the cab is just the safety venting into the boiler jacket due to small holes on the top of the steam dome. The leak on the cylinders are normal for pretty much all accucrafts. They dont use anything on the gaskets just oil. Eventually they all leak, you can fix it by applying a film of RTV but that involves a lot of disassembly.

Jason Kovac Lakewood, NJ

Pete Thornton User is Offline

1st Class Member
Annapolis, MD

Conductor
Posts:625

07/27/2008 2:46 PM
at the seam where the steam chest meets cylinders. My C-16 began to leak out of the steam cheat above the cylinders, so I tightened the four bolts holding the cylinders together. Seems to have cured it for now.

Taperpin

Brakeman
Posts:75

Send Message

07/28/2008 2:09 AM
a simple fix for the Condensate under the jacket.. Ώ] drill out the centre hole in the dome top to 1/8th diamteer, press fit ashort piece of 1.8th copper tube into it , with about 3/16th sticking down inside.. then fit asmall length of rubber tube to the safety valve top. ΐ] refit the dome top joining the safety to the copper vent tube with the rubber tube.. This solves the discharge under the jacket problem and looks much better when the safety valve is open.with a high plume of steam from the dome. Gordon.