Member postings for paul rushmer

Keith

3/16 16swg copper tube is available from Blackgates in short lengths delivery normally by return.

Hope this helps

Paul

Just looked at my eBay history, Minerals-water Ltd 800g £12 inc postage.

Hope this helps Paul

Try eBay I bought some from a chemical company (south Essex I believe ) last year to remove a 10 BA from Dads new copper boiler. It worked well but took a week.

Paul

Hi Michael

I think Grandfather finished it in 1974 ,I have driven it a lot we used to take it to local fates to give the children rides on our portable track and raise funds for charities and the like. The valve gear is as LBSC designed, I know he had to file bits out to get full travel, as to performance reluctant to pull away slowly and does not like drifting slowly or notching up but open her up and she keeps up with her name. Sorry this is not of great help. Personably I would try and find Don Astons article in the M.E. before machining any parts. From memory He reckoned most parts needed changing, there is not really enough room between the cylinder and crank pin so a compromise has to be made. The Americans got it right on the USA tank on the southern they drove the rear axle! I have no plans to run the engine in the near future you would have been a good reason! Slowly trying to improve some 3 1/2 wagons at the moment.

Paul

Hi Michael

It would help if we knew roughly were you are I am Cambridge club based and have my grandfathers Speedy quietly slumbering in the back of the garage, last run 4 years ago. You would be welcome to come and view and she may be persuaded to run! I think it is built exactly as LBSC intended.

Paul

Is it the adapter supplied with a large Colchester (Triumph 2000) a long time since I used one.

Paul

Hi Phil

The regulator in Robroy is screw down and mine works a treat, seals well for boiler tests. Just do not leave it tight shut as the boiler cools down you may not be able to move it until the boiler is hot again.

hope this helps Paul

I hand tool mine using a file ground smooth on the end and sharpened like a wide parting tool, the tool rest being a round rod held in the tool post. Check the profile by eye and feel polish with emery to finish. This method is quick simple and easy. Just be carful.

Paul

There is an error in this table if using metric units the 3 1/2 back to back is given as 83mm, this should be 83.35mm. Not a lot I know but worth knowing.

Paul

Coning the tread should help centre the wheels on the track, the root radius is just as important. These two help stop the flange banging in to the side of the rail and improve ride. The root radius should be 0.050 inch but I use a broken No1 centre drill in a tangential holder sharpened to the appropriate angle to cut as a form tool (0.062 radius) this works fine on our multi gauge track. Both wheels on an axle should be the same diameter or they will try to go round in circles.

Hope this helps Paul

Hi Andrew,

The club in St. Neots is known as the Riverside Railway, from what club members have told me about it, it is more of a community miniature railway and not a model engineering club as we know it.

I find these conversations intriguing as very few people mention the Cambridge Model Engineers we have been at our present site fore about 60 years ( are we black listed!!).

Please visit us, this year we holding the southern fed rally on Saturday the 8th September.

Paul

If my memory is correct that was made by Cambridge Instruments cam in a bridge !!

Paul

Jeff I have 2 part builds (not by my self) and other bits and some information you may find useful

LMS Journal No2 pub wild swan has a 20 page article on the prototype including drawings and photos

Model engineers laser do a body kit (Ivan Laws design)

Ian Bradly did some mods ME 2 nov 1944 larger flywheel 24 sept 1942 pressure relief for the oil pump and eccentric idler gear in valve train

I had A friend NC some coupling rods for me in steel, I do not like the look of the original ones in aluminium (wrong colour)

Paul

Hi John

Where are you in the country? I have several 2 foot square sheets in the garage you are welcome to some. Nearest major town Cambridge.

Paul

Just to up date you all the Brocken tap came out yesterday as black mush, the long time is probably due to the size (10BA) very little room for the alum to flow round and clear debris and the fact it was left in the conservatory very cold this weather! Just got to modify fire hole door hinge to fit new bolt holes.

Thanks again Paul

I have one of the tools pictured and find it useful, when Dave Noble was trading he us to make a modified jaw for a pair of mole grips. Some one in GL5 modified a pair of parallel closing gas plyers. The wagon boys use them a lot for riveting steel chassis together.

Paul

Thanks all.

I have just bought some brick cleaner for removing mill scale as recommended by Jason and others, I will try that.

Paul

Ideas please

We have managed to break a 10ba tap in the back head of a new 31/2 gauge loco boiler, is this dissolvable with some acid ? I am shore this has been covered before but I can not find it on the forum. the tap is in a blind bronze bush which is proving very tough.

Thanks Paul

Several of our club members use these people**LINK**

Hi Neil

I have all the equipment to do what you want for my class O8 but not done it yet! Most of it came from flying tech, it will use 5.6 MHz to transmit the picture back to a Lilliput monitor which has picture in picture capability so I can see in front and behind at the same time.**LINK**

hope this helps Paul