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Member postings for Brian Abbott

Here is a list of all the postings Brian Abbott has made in our forums. Click on a thread name to jump to the thread.

Thread: Brian's 1" Minnie Traction Engine
23/09/2019 16:07:00

Thanks for the replies chaps, does look offset but as there is no dimension i would imagine it’s just how it was drawn, anyway i’m going with equal about just to keep the wheel jig the same for both sides, thanks again

Nigel, see your point regarding having a clearance hole, i am not brave enough to key the eccentric, i have found an article in the model engineer that explains how to set the timing using a DTI so am going to try that method if i live long enough....

22/09/2019 19:14:18

Hello all.

Bit stuck and i need a little help.
Just starting making the parts for the front wheels, looking at the drawing the hub looks to be offset to the center of the wheel but i cannot see a size on the drawing, anyone any idea ?

front wheel.jpg

Thread: Injector help
03/07/2019 23:15:30

Hello Paul.

What size injector is that one ?

02/07/2019 22:49:40

Since found out the following, not sure if its correct but..

Steam inlet and outlet are normally the flat type, water feed can be coned or flat, depends on the injector..

Regards the performance of the injector i don't think it makes any differance.


30/06/2019 23:07:09

Hello all.

Need some help if possible.

Are the union nuts and nipples used for normal fitting the same as you would use to connect an injector?


are both horizontal and vertical injectors the same in terms of performance?



Edited By Brian Abbott on 30/06/2019 23:27:48

Thread: Drawing for a miniature quarter turn valve
24/06/2019 08:18:28

Thanks guys,

Duncan, will drop you my email address.


23/06/2019 21:41:37


I need to make a replacement injector isolation valve, many of the comercial places make them but i need one with a flane mount, what i am after is a design i can adapt.




Edited By Brian Abbott on 23/06/2019 21:42:36

23/06/2019 20:53:12


Does anyone know where i can find a drawings for a miniature quarter turn isolation valve ?


Edited By Brian Abbott on 23/06/2019 20:55:51

Thread: Injector issue.
16/06/2019 21:19:42

Can anyone offer any advice on a injector issue i am having.

I turn on the water supply to the injector and water flows from the overflow.

I then turn the steam on, with some carefull balancing i can get a flow of water to the boiler but more often than not it end in a plume of steam from the overflow.

There is a slight waterleak from the shut off valve, both past the o rings and past the body into the injector, i have replaced the o rings in the shut off valve but its still leaking which is down to the wear, does anyone know of a supplier of this part or should i set about making my own ?



Edited By Brian Abbott on 16/06/2019 21:23:54

Thread: Steel boiler storage.
11/05/2019 23:29:05

Thanks for all the reply's, appreciate you taking the time.

Martin Johnson, whats the process to blow down ?

Do i just let the boiler pressure drop down to about 10 psi then open the valve and let it all out ?


Edited By Brian Abbott on 11/05/2019 23:36:04

10/05/2019 12:30:26

Hello all.

Appreciate there will possibly be no right or wrong answer so am just after some opinions.

How should you store a 3" steel boiler.

Full to the brim with an additive, when do you know is properly full ?
Half full with an additive.


Thread: Looking for Mr M. E. Robinson
07/05/2019 20:28:01

Hello all, i know this is a long shot but..

I am trying to contact a model engineer by the name of Mr Michael Robinson.

Formally of Jericho Road, Cumbria.

If anyone knows or has any way of contacting him would you be able to let me know.

Thanks in advance for any help or info.

Thread: Brunell Steam Model Engineering
24/04/2019 16:20:29

Ok, thank you.

23/04/2019 15:32:25

Hello all.

I notice that their website is off line, does anyone know if its just a technical glitch ?

Thread: Brian's 1" Minnie Traction Engine
02/04/2019 16:40:03

Thanks for the feed back,

Raymond, nice to see it progressing, not heard from you in a while.
Jason, you say 3 pin method but Paul only mentions 2 ?

Is this right ?


Edited By Brian Abbott on 02/04/2019 16:52:29

02/04/2019 08:49:49

Morning Jason, thanks for replying,

Its this bit I'm not sure about, should i try and find / borrow a set of rolling bars or should i just form it round a bar ?

perch bracket.jpg

01/04/2019 23:15:35

Hello guys, after some more advice.

Whats the best way to form the curved piece of the perch bracket to match the smoke box ?

Thread: Myford 30M ?
21/03/2019 22:27:26

Pratt Burnerd chuck labeled myford 30m mount.
Anyone know what the 30m stands for,

I have had a look and from what i can make out its the model number for a 4"

Someone said is stood for 30mm but as far as i am aware myfords standard spindle was only imperial.

Anyone know ?


Thread: Hole tolerance help needed.
19/03/2019 23:14:07

Thanks Phil, Thanks Jeff.

I have just been through the suppliers info and i think i have wasted your time, sorry.

Bush size is 65mm +0.019 + 0.030,

Hole size should be 65mm +0.00 + 0.019 (H6)

Thanks for your time both.


19/03/2019 22:44:55


yes, 63mm not 6.3mm


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