injector problems still

[Ron HancockParticipant @ronhancock63652]

[Ron HancockParticipant @ronhancock63652]

**LINK**

hi can anyone help i keep having dreadfull injector problems i have two brand new ones again that will not work.

i have tried opening slowly so letting steam build up shutting water down to half the trying again. i have tried from 50 psi to 90 psi at every 10 more pressure. took pipe of from injector to boiler video shows that where steam should come out at force its not. any suggestions welcome i am at a loss.

Ron

[Ron HancockParticipant @ronhancock63652]

with pipe to boiler connected

[Andrew TinsleyParticipant @andrewtinsley63637]

Not sure about miniature injectors. For full size, I always opened the water and made sure that it drained onto the track (Quick look over cab side) , then opened the steam valve until it picked up and water ceased to flow onto the track. The only real problem I ever had with full sized ones was when they got too hot, then they would not pick up. Loads of cold water was the trick, usually from buckets (depending on the loco) I found ex industrial ones to be a bit temperamental, main line stuff always behaved in my experience.

Sounds as if you are not getting steam to the injector?

Andrew.

[ScrumpyParticipant @scrumpy]

Some months ago a friend was having problems along the same lines it was suggested the gap on the steam cone and combining cone was to large so making a set of shims and closing the cap by trial and error he got it to work could yours be the same

[JasonBModerator @jasonb]

What happened to the ones Julian tweaked for you that were working fine?

[Ron HancockParticipant @ronhancock63652]

Hi yes Julian Atkins found problems with new Injectors and will make me new cones correct size. Trouble is so busy helping so many already been waiting about 8 months. It will be well worth the wait just to know they are done properly

Ron

[Ron HancockParticipant @ronhancock63652]

Posted by JasonB on 05/07/2017 13:36:43:

What happened to the ones Julian tweaked for you that were working fine?

Julian has been so busy so difficult to make still waiting for Julian to make cones correctly for me when he has time

[Werner SchleidtParticipant @wernerschleidt45161]

Hallo Ron,

for my opinion and knowledge by making my own injectors,it is a copy of a commercial design, you have not enough steam to drive the water out of the nozzle. Your valve or your pipe to the injector is not sufficient in size.

Please take a look to the link **LINK**

John Baguley has a very good explanation on his side with pictures and explanation.

What I said above is correct if never an injector worked on this loco. On the otherhand it could be that the steam nozzle has to low penetration to the combining cone or has a slightly to much bore. All this give the same effect.

I am not an expert ,but I collect a lot of experience by copying the injectors. My friend copied my tools and reamers and he was able to build his own injectors too.

Werner

Edited By Werner Schleidt on 05/07/2017 16:27:18

[Ron HancockParticipant @ronhancock63652]

Hi if it's the case that not enough steam to ouch it not sure why it works on the borrowed one. I am using 3/16 pipe same with globe Valve.

When Ben Pavier of BP Steam changed the piping and fitted borrowed injector he had it working Lovely. I got these two new ones to try but no way will it put water into boiler.

Surely just closing water so it's slow would then work I just don't know

Ron

[Werner SchleidtParticipant @wernerschleidt45161]

Hello Ron,

I missed the information that it worked with a borrowed one. As I said after the link there can be other problems.

I looked your video ,but for me is not clear what you do. In second 28 to 32 your injector has small dribbeling and from the sound it worked. The same in second 42 to 43.

As I recognised in my steam loco s, at the beginning I had John Cashmore injectors,they worked very good. I opened the water full openend the steam full and the injector picked up !! And it was possible to pick up if I opened the steam first.

They have only one problem the steam nozzle was very thin and the waterjet destroys the inlet into the combining cone of the steam nozzle.

I tryed to reproduce such a steam nozzle, but I was not able to do so.

In Germany in the steam fair in Sinsheim I bought an unknow make of an UK suplier in a hexagon body. I bought the tap and die too to make my own connectors.

These injectors had an different start procedure. Open the water valve, wait until water came out constant and then open the steam valve full. The injector did not picked up, but water expire at the overflow more rapid. Then I have to reduce the water valve a little and the injector picked up. That is a roundabout way ,but these kind of injectors are not so sensitiv to small amounds of dirt. And these nozzle are much more mechanical stable. I tried to copy the steam nozzle and I get that to function. And one thing is clear the water have to be clean. I have in my water tank a special filter made from a women stocking or panty . It is spread over the inlet in a very loose fit.

So any dirt is in the filter. And you get this material everywhere.

Werner

[Ron HancockParticipant @ronhancock63652]

I used a very fine filter they use on pressure water pumps to keep clean. Most injectors here work with water first if you use steam first the injector will over heat and not work. No idea what can be wrong other than the injector itself. I have ordered a no 3 hope to get from Blackgates tomorrow will see if I can get that one working.

Ron

[Ady1Participant @ady1]

The injector gremlins are really out to get you Ron, GL

[Ron HancockParticipant @ronhancock63652]

Your not kidding tried everything just been out fitted paper fuel filter to Injector pipe no way anything will get past that. I have also changed all plastic piping and used petrol pipe clips. Will guarantee no air leaks or muck getting into injector. I have new Injector coming from Blackgates tomorrow to Try. I have also been given another supplier who comes highly recommended so hope after this all will be well. I have also washed clacks in white viniger blew out with air line fitted new balls in. Will steam again tomorrow toes fingers crossed now

Ron

[Ron HancockParticipant @ronhancock63652]

Well got my new injector from Blackgates this morning fitted as you can see on Video utube it picked up no problem so after buying 7 one works feel very elated as the only other one that would work was one of Julian Atkins thank you Julian. such a relief at last.

[Ron HancockParticipant @ronhancock63652]

Think i posted wrong video sorry

You cannot beleive how good it feels

[Howard LewisParticipant @howardlewis46836]

Suggest that you try to contact D A G Brown, and talk to him. He is very clued up on Injectors, makes his own, and speaks on the subject, as well having written a book on them..

S M E E could probably put you in contact

Howard

[Ron HancockParticipant @ronhancock63652]

Thank you will see if I can track him down.

At moment I now have a working injector.

I had thought it must be my Loco but fitted last one and it pics up Lovely.

Going to Run it Tomorrow see how it performs then.

Thank for advice

Ron

[Author]

Posts