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Member postings for Arthur Goodwin

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

Thread: Trunch Trojan
13/05/2020 19:12:57

Hi All

Been making good use of the lockdown to crack on with my engine (every Cloud.......)

Now at the stage where I am ready to do a test build of the cylnder and its constituent parts.

It is made up of 6 seperate components all 2.25 diameter (or thereabouts)

What I would like to know is, what is the preferred gasket material for a steam cylinder and what thickness should I be looking to use.

I have scanned other forums and the variety spans from using a dollar bill to brown paper and oil

I will be including some pictures on my next post of the parts and completeed cylinder,


Thread: Rabone machine level
29/04/2020 09:46:56

Thank you guys

28/04/2020 19:45:46

img_20200428_171823.jpgHi all

Over the moon when I won this on ebay.

Got it for a tenner, bargain I thought till it arrived today.

The glass phial is cracked and the bubble has escaped.

Tried to source a replacement but everybody seems only to have up to 11mm in diameter.

The Rabone tube has an i. D of 14mm.

Does anybody a, have one theycansell or b, have any idea where to get one from

Thanks in advanceimg_20200428_191319420.jpg

Thread: Odd tool
28/04/2020 19:36:11

img_20200428_171804.jpgimg_20200428_171724.jpgHi can anybody tell me what/where would I use this.

Its obviously a drill fixture but its use eludes me.

Thanks in advanceimg_20200428_171712.jpg

Thread: Old steam boiler
26/04/2020 20:07:29

Hi thanks to all for your input.

The safety valve has been soldered on so I will be getting a new valve for it and re soldering it.

thank you

26/04/2020 16:52:04

26/04/2020 16:42:16


Aquired this boiler some while back and have only just got round to having a good look at it.

First thing I noticed was thete didn't appear to be any whete to put the wster in.

The only thing I could find was on the end of the tank (see pic 2) where it looked like something has sheared off.

Any ideas please. img_20200426_143733.jpg

Thread: New member
26/04/2020 15:26:13


Could anybody tell me how to upload a photo.

When I click the camera icon it opens another window which says browse albums and underneath it days no albums found.

Any advice please.

26/04/2020 15:23:21


Being new to the forum I am here on an intro basis.

Not sure if this is the right place but here goes.

I worked all my life in production engineering with a few years on maintenance in the food industry.

Now retired I have set up my own workshop comprising of a Denford viceroy lathe 5", a clarke mini mill cmd10 a clarke drill press and grinding wheel.

Well tooled up and embarking on my first project which is the Trunch Trojan by Bob Williams.

Thread: Trunch Trojan by Bob Middleton and J de Waal
21/04/2020 19:15:24

Sorry that last comment should be 3/4 centers

21/04/2020 19:11:58

In the cad drawing by J de Waal he puts a dimension of 2 and 1/16" from the center line of the cylinder to the first 2 of 4 holes for the locating pins for the support frame.

This dimension should 2" as per Bob's drawing. The 2 and 1/16 is to the first pair of tapped holes which are on 1" center's and are for the support frame brackets.

Thread: Trunch Trojan
19/04/2020 16:51:32

Thanks for that.

Your help is greatly appreciated.


17/04/2020 19:21:28

Hi all

Just to let you know I completed my deep hole drilling successfully thanks to Jason, s sage advice.

I am now into element "a" the cylinder head component. Neither Bob M, s version or the cad version show the piston rod gland threaded on the 3/8 dia (1-08.4) and only Bob M shows its mating hole threaded.

I lean towards J. D. W's version as he as elongated the 3/8 dia and included the seal material, relying on the 2 studs to hold the gland down and compress the seal.

Am I correct in this assumption.

Regards Arthur

15/04/2020 17:54:34

Thats a gteat idea thanks for that.

Have got some silver steel on order.

Will let you know the result.

Thanks once again Arthur

14/04/2020 20:16:23

Forgot to say will be doing this on my mini mill with the drill in a chuck as I have no collet small enough

Cheers Arthur

14/04/2020 20:13:32

Hi all

Have today successfully completed element E of the T. T 1.06 IN The cad drawing.

Tomorrow will be my biggest test since starting this project.

I need to deep drill a 3/32 hole 2.25 inches deep, passing through the pocket to the far side and carrying on for a further9/16.

I need to maintain accuracy along the center line and also to be parallel with the face.

This is so when the valve rod and slide valve are fitted that the top of the slide valve is a snug fit on thr underside of element D (106-3) which contains the steam portsm

Any advice would be greatly appreciated.


12/04/2020 22:27:22

Very clever. Would never have worked that out.

Thanks for that

12/04/2020 18:00:20

Hi all

Further to the slide valve on the T. T engine I have today made this valve and along with the other components now have a better idea of how it works.

One thing puzzles me though, with ref to J. A. M. De waal, s excellent cad drawing the slide valve sits on top of the valve rod (2-09.4) and presses up against the underside of 1-06.3.

When the valve slides it will expose one slot and cover up the other. This I understand as it will stroke the piston up and down. What I fail to see is what function does the pocket on the top side of the slide valve do?

Any ideas?

11/04/2020 19:41:16

Thanks that explains a lot.


10/04/2020 22:37:40

Hi I am just setting out on my first project the Trunch Trojan by Bob Middleton

If there are any members who have completed this or part way through PI would love to hear from youm

For instance he says 2 of for the slide valve when only 1 will fit.

Sticking with the slide valve, the way it is drawn it would have to go upside down which would be silly.

I, m not knocking Bob, far from it he's done a great job designing it but it's frustrating having to 2nd guess his drawings.

Any help would be much appreciated.


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