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Member postings for Dave Halford

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

Thread: RDG 30VSM-Parts Needed
20/03/2022 17:36:04

Have you tried RDG ?

Thread: Rolling a 5" gauge copper boiler barrel
20/03/2022 14:33:33

Blackgates do 5" copper tube in 10G.

Thread: Pressurised vs loft tank CH systems?
20/03/2022 14:27:20
Posted by SillyOldDuffer on 20/03/2022 14:16:53:

I asked this very question before my son's house was fitted last year. No mention of building regs, but pressurised boilers can be installed anywhere in the house because there's no need for a header tank high enough to provide hot water pressure, and hot water runs quickly because it's pretty close to mains pressure.

Couple of painful incidents in my parents house put me off loft tanks : first a dead pigeon, and then a major leak about ten years later which started while they were asleep!


UG! Tanks are plastic and have lids now for both those reasons. My father had Bees block the overflow on the hot tank back in 1960, then the washer went.

20/03/2022 14:23:54

You get more choice of mixer taps that work.

You only heat what water you need

You, um, er, give me time now ........

You need a bigger gas feed right back to the meter

You get enough hot to feed one tap only.

You get a condensate drain that freezes if the outside temp is lower than -8C for more than a day and stops the boiler. Particular fun when the boiler is in the roof space so that freezes as well

Thread: Stuart 10V - rust in valve chest
20/03/2022 14:12:31

You need one of these fairly greedy with thin air tool oil, but much better with thicker car engine oil. Or you could make a proper oil pump such as the on on Minnie.

Thread: Damp shed: what’s the best way to add ventilation?
20/03/2022 11:17:34
Posted by Simon Robinson 4 on 19/03/2022 15:12:46:
Posted by Dave Halford on 16/03/2022 18:41:57:

What did you 'seal' the roof with? It should have been heavy duty felt, the expensive stuff. 6x4 sheds tend to be made cheap with the thin felt and thin walls made from fencing panel timber.

Without gutters rain will run off the roof hit the patio and bounce up wetting the walls.

It’s tongue and groove panels but the felt is thin and poor and nailed on which I’ve had to paint tar over.

I think my big mistake was painting the inside of the shed in white emulsion because the moisture can’t absorb into the wood and evaporate to the outside due to the paint layer and so it just condenses. The outside is also painted but with Cuprinol.


There's nothing wrong with nailed on felt

Spend the £42 at B&Q and get some decent 15year felt, rip the old felt off, I think you will find a wet roof under it which will need to dry in the sun for several days. There's so much movement in a wooden building + the thin felt moves as well, it's impossible for that felt paint to work for more than a week.

16/03/2022 18:41:57

What did you 'seal' the roof with? It should have been heavy duty felt, the expensive stuff. 6x4 sheds tend to be made cheap with the thin felt and thin walls made from fencing panel timber.

Without gutters rain will run off the roof hit the patio and bounce up wetting the walls.

Thread: Suspension Bush material
15/03/2022 15:08:51

You'll find the brackets can deform enough to take out any slop when you tighten the bolts.

Having watched the RedBull soapbox races the major flaws are wheels collapsing under side load and nor enough steering and or brakes.

Oh and doing a rubbish dance at the start.

Thread: Is this distasteful
14/03/2022 15:11:00
Posted by Kiwi Bloke on 14/03/2022 07:40:41:

Better, surely, for us to decide for ourselves what we consider tasteful or otherwise, and to act accordingly, than to have others decide for us and legislate, or apply mob rule.

Edited By Kiwi Bloke on 14/03/2022 07:41:25

But 'us' left alone are the mob as we had on here last week.

Thread: My Minnie
11/03/2022 12:16:08

Looks like the brackets for the cable fairlead, goes horizontally above the towing bracket on the back of the tender

Thread: Pacemakers
10/03/2022 16:57:12
Posted by Dave Wootton on 10/03/2022 16:46:00:

Blimey, I hope they made the pacemakers better than some of the 60's motorcycle electrics!

( light hearted comment not intended to start a huge thread about motorcycle electrics, after all Joe Lucas was known as the prince of darkness!)


Pacemakers never went anywhere near a Lucas factory, they came out of a proper lab and the only thing that Lucas were allowed to manufacture on the site

I always thought that was when the battery fell out (after the headlight flashed very bright for 1/2 second)

10/03/2022 16:20:19

Talking of pacemakers, the originals were made in the 60's at Joseph Lucas Research in Shirley, they tore the building down this week I believe to add more capacity to the local care home ghetto

Thread: First Lathe - Colchester Triumph (1960s roundhead) vs Warco WM250v
10/03/2022 16:09:01

Did he turn something parallel and measure each end for you?

Thread: Boiler making torch
10/03/2022 10:38:18
Posted by Durhambuilder on 10/03/2022 09:49:29:

Calor gas cylinders can be found quite cheaply at car boot sales and the like, don’t worry about size or condition once you have the cylinder you just swap it with the size you prefer at your local calor dealer.

Those were the days, now you need to check the Calor web site.

Some torches need a particular size of bottle to work properly.

Thread: Spindle Play in Sieg SC4 Lathe
09/03/2022 15:12:38

Are you cutting brass now? That will grab.

Too much stick out on thin bar stock.

Is the chuck still holding within 3thou runout? If not it may be chips stuck in the chuck scroll.

Check the saddle rear gib has not come loose. Also try locking the saddle and use the top slide to take the sliding cut.

Thread: Plasma cutter at lidl
09/03/2022 12:07:26
Posted by SillyOldDuffer on 08/03/2022 17:19:47:
Posted by Frances IoM on 08/03/2022 14:59:29:
ring mains being 2 x 2.5mm^2 cabled are generally protected these days with a 32A RCB - the 13A fuse is only there to protect the cable from the socket to the device (only the UK has such a scheme - its utility has often been questioned)...

True, but unwise to assume that. My home, which isn't ancient, has an old-fashioned consumer unit with fuses. I suspect many sheds and home workshops have downright dubious electrics. Much depends on who installed it and when...


Your ring is fed through a 30A fuse as Mark says, you probably have a fuse wire card somewhere in your house to confirm it.

Your house is probably the only non-ancient one in the country that risks burning down when you run a kettle at the same time as the toaster in the kitchen. There is absolutely no need to keep taking the kettle upstairs to boil it.

Thread: Firing a 1" Minnie
08/03/2022 12:23:19

try this thread model enginering clearing house note the water pump issues

Thread: Plasma cutter at lidl
08/03/2022 12:10:59
Posted by not done it yet on 08/03/2022 10:56:53:


When I bought mine, I noted that the tape across the box had been ‘reinforced/overlaid’. I assumed this was a ‘factory mod’ to hurriedly replace the plug with a 16A one - likely after comments on here, or elsewhere.

I have just getting around to trying it out - not had chance, really, since buying it.

HOWEVER, I thought I would check a little closer this morning and guess what!?

The power lead is only of 1.5mm ^2 cross section! Cheap s*ds replaced a 13A plug with a 16A rated plug on a 10A rated flex.

Should we be requesting a suitably rated flex? I think so.devil

That was probably a return by someone who wanted a 13A plug.

The previous release of '30A' machines (I have one) were Euro 40A /16A plug versions with the current limiting pot turned down and a 13A plug fitted. The lead is still 1.5sqmm.

Current ratings depend on how much heat you are prepared to accept in the cable. Companies like BT in the 90's were only happy with no heat rise above ambient due to PVC plasticizer migration at 60degC, their buildings have windows and the sun can cause that much heat on it's own. So cables were sized more generously than some of the cable tv firms.

In this case the shortness of the lead mitigates the issue and I doubt for DIY use you will notice much heat in the 5 minutes that you will have it cutting.

Thread: Centec 2B
07/03/2022 19:03:59

Hi Neil, there's a guy on Ebay who occasionally breaks Centecs.

Thread: Help please with inherited items
07/03/2022 18:50:06
Posted by Rich Head on 03/01/2022 15:22:15:

My wife has inherited a few items from her late mother, which were her late father’s work. The Allchin is love steam and used to be certified, but as he passed some 25 years ago we’re assuming the certificate is long since expired. In addition to the engine and the other models she has inherited plans, books, some tooling (lathe chuck?) etc.

I have lots of pictures, but am not sure how to include them in this post.

Could anyone advise of possible value and how she is best selling these (neither she nor I have any interest in showing and don’t have the room to keep these items)?

Thanks in advance,

There's not many who can produce work of that quality, your wife should be very proud of her dads work.

Missed your reply Bill, I guess they only wanted to know what they had 'aquired'.

Edited By Dave Halford on 07/03/2022 18:52:20

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