Print

Please login or register.
1 Hour 1 Day 1 Week 1 Month Forever
Login with username, password and session length.

[Klunk]

while running the plant up yesterday something happened. The gas had been on for about 10 mins and the pressure was coming up nicely when the gas seemed to flare. After that there seemed to be no pressure in the flame. upon looking it seemed to be burning green!
I dossed the flame and let cool. I took the jet out then took the shroud off. Where the jet nozzle was there was a liquid drop covering it. Any ideas what this was??
I cleaned the jet, dismantled it and pulled a fine wire through it. upon completion it was reassembled, and run ok.
next question...........
how far into the boiler should the jet be placed?
what is the best gas to use ?
can i convert this to a ceramic burner for better efficiently?

[HS93 (RIP)]

have you got a picture of the back end of the boiler ? the liqid sonds like a leaking boiler, when was it last tested ?

TRY http://www.clevedonsteam.co.uk/products.html For a burner.

Peter

[Klunk]

it was not water, it was actually on the jet, inside the housing and was oily to touch with an amber colour. its reassemble now as its sailing today! will take pics later once I get back

[gondolier88]

Oily to touch, amber colour and green flame- sounds like copper ant-seize grease.

Greg

[mogogear]

Had it been a long while since you last used the boiler and burner? maybe condensation or old moisture in the burner line - once heated transported some anti seize compound from inside the line out through the jet.. ?????

[Klunk]

About 6 months. Now have other mechanical problems after a steam on Sunday.. My new pressure valve fitted last summer was inspected and the durng disintegrated . Also the valve was seized. And the pressure gauge went to the far right and stayed there. As that was while filling her up with water.   Not a good day in the end !

[ooyah/2]

About 6 months. Now have other mechanical problems after a steam on Sunday.. My new pressure valve fitted last summer was inspected and the durng disintegrated . Also the valve was seized. And the pressure gauge went to the far right and stayed there. As that was while filling her up with water.   Not a good day in the end !

Klunk,
Due to a spelling error I'm not sure what disintegrated.
How a do you fill your boiler ?
Do you fill it with a hand pump? if so with a stuck safety valve you will have pressurized the boiler beyond the limit of the pressure gauge which is now ruined.
If not filled with a hand pump how do you fill your boiler and how did you manage to ruin the pressure gauge ?

Have you ever had the boiler tested and a certificate issued ?

Going back to your fuel problem, have you ever cleaned out the inside of the L.P.G. tank by filling it with Citric acid or some other descaler.
If it has been lying for a long time with L.P.G.  gas in it ,it could be acting against flux that hasn't been properly cleaned out on the original tank build and this could be the cause of the green gunk coming thro' the jet. 

Let us know and will try to help.
George.

[Jerry C]

I have been experiencing similar problems. Recently after each steaming cycle I have found the burner jet  partially blocked. If I try another cycle it will eventually block completely. Pricking the jet solves the problem for a while but eventually the jet blocks again. I removed the gas tank to jet pipe, the jet holder and the jet. I boiled each component in detergent, flushed with clean water then soaked the parts in dilute H2SO4 and rinsed and dried them.  I will test at the lake in a fortnight ( there is a Triathlon being held in and around Llyn Padarn this weekend) and report the results. To see if I might be on the right track I googled copper pipe making and bingo, only special use copper pipe is thoroughly cleaned of lubricant used in the extrusion process.  If this does not cure the problem then I will do as George suggests and also clean the gas tank. If I was drawing liquid gas from the tank, then, as virtually every other  petroleum product is a good solvent, I would expect the gas tank to cause problems also. I believe, however, that when they are made they get pickled before use. Jerry. 

[Klunk]

Due to a spelling error I'm not sure what disintegrated.
the spring in the safety valve!
How a do you fill your boiler ?
hand pump over pressurised my own fault!!


Have you ever had the boiler tested and a certificate issued ?
all tested to SMEE STANDARDS!! was due new boiler check next month!!

Going back to your fuel problem, have you ever cleaned out the inside of the L.P.G. tank by filling it with Citric acid or some other descaler.
I dont use a tank. I use a direct connect can!!

new parts to be ordered, new pressure gauge, new safety valve!!
If it has been lying for a long time with L.P.G.  gas in it ,it could be acting against flux that hasn't been properly cleaned out on the original tank build and this could be the cause of the green gunk coming thro' the jet. 

Let us know and will try to help.
George.
[/quote]

[ooyah/2]

Hi Klunk,

I can't offer any ideas as to what the gunge  in the fuel system is, as you like me use cans of L.P.G. so that rules out the copper tank.
I can only suggest that you keep your eye on it and clean out the pipe and jet when required.

No doubt it's an expensive lesson in filling your boiler with a hand pump when the S/Valve is stuck, must confess it's the first time that I have heard of a Valve seizing, was it a commercial bought valve or one that you made.

At least it blew the gauge when filling rather than under steam pressure.

George.

[KNO3]

I have heard about this stuff blocking gas jets too, and I have also found a bit in one of my burners. I don't know what it is, but cleaning the jet cured the problem (for now). Some German modellers said it might be some kind of residue/impurity that's inside the gas when it gets filled at the factory. Of course it could also be from dirty pipes or fittings.