Here is a list of all the postings Windy has made in our forums. Click on a thread name to jump to the thread.
Thread: Align Power Feed Zytel Gear Assembly |
04/02/2012 18:41:14 |
Is the Zytel reduction gear meant to be solid the the ally hub or should it rotate on the hub with the load of the beveled washer and circlip making it a failsafe clutch?
The one on mine is a very tight fit.
Windy |
Thread: Cast Iron vices |
12/01/2012 13:38:23 |
I had a Parkinson 6" a lovely vice but pressing some car wheel bearings with it and using an extension on the handle broke it.
Then bought a new 6" Record without the quick release.
I very rarely use an extension on the handle now as a good 6" vice is not cheap.
A friend who is restoring his old car and tractor has a trick? when using a vice for pressing car wheel bearigs out of there housings.
He tightens the vice as hard as he can just using the normal handle without extension.
Then using a 2lb hammer he gives the vice jaw a firm clout then tightens a bit more and repeats hitting it.
The shock moves most stubborn bearings.
Apart from bruising the vice body I have lost count of the number of wheel bearings he has removed with this method when we worked together at a garage.
Windy |
Thread: Angle Grinder Cut Off Saw Attachments any good? |
10/01/2012 23:48:39 |
Chassi repairs with gas welding could be a bit of a pain if there was underseal about and that melted and dripped on you.
the modern underboy coatings are a slightly better than the old bitumen underseal but there is also wax injection that can be messy with heat?
Windyl |
07/01/2012 01:14:45 |
Having been in the car body repair trade for many years I have seen the effects of grinding sparks and spatters off mig welding especially when doing chassis repairs. Hair on fire, sparks in ear holes and that makes you jump. I use flame retardant overalls, they can be a bit pricey depending where you get them from but they are worth it. Burning flesh does not smell nice.
Windy
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05/01/2012 18:53:32 |
Thanks all for your comments it is what I thought.
Another question regarding diamond cutting discs.
Are they suitable for hardened steel.
On one advert it says you can use them on iron.
Windy
Edited By Windy on 05/01/2012 18:54:37 Edited By Windy on 05/01/2012 19:00:42 |
05/01/2012 17:51:18 |
I have an 115mm angle grinder and wondered if a cut off stand for it would be useful for cutting off hardened steel.
Or should I just use it free hand and save money?
Windy
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Thread: Permanently bonding Aluminium |
19/12/2011 02:25:10 |
I have used Techno Weld to build up and repair damage on my early flash steamer crankcases and pumps.
The downside it becamet a dark colour after a while which in my case did not matter.
There was also some large pieces of ally that I tinned with it and sweated them together.
It will probably anneal the ally as well.
There is another similar product I have used (Swedish I think) that is a better colour match.
I was after some high temp epoxy myself and a friend gave me an old cataloque with many differant high temp adhesives some with ceramics in it but the firm no longer trades.
The aerospace industry no doubt will have something but at a price.
Windy |
Thread: Solar Flux |
15/12/2011 00:45:12 |
I wondered if anyone who does tig or mig welding of very thin stainless have used a product called Solar Flux to stop sugaring instead of purging or heat sinks.
It is an American product developed years ago for weld repairs of jet engines.
Have read good and bad reports on the net.
It leaves a ceramic coat on the back of the weld and can be hard to get rid of.
Is there any similar products on the UK market that are not as pricey 1lb £75.
As a newby to tig (Brief time 25years ago on car bodywork) its an enjoyable learning curve.
Jody on an American Website has been very helpful link in how to do the many types of electric welding.
Windy |
Thread: Effect of red heat on 316 and 321 stainless tube. |
10/11/2011 21:28:09 |
Spot on Niel but it is very interesting to hear all the various comments.
I have had 2 seasons with no bursts but after a certain length of time the generator pops.
Maybe the tubing degrades with the constant changes in hot and cold at the furnace end
I have some spare short generators from previous bursts and would like to reclaim them.
One popped when testing a De-Laval nozzel on a test for my turbine.
It keeps the gray matter active.
The Hydro section is very active in the Midlands and South with a number of competitors up North as well.
Windy |
10/11/2011 13:31:55 |
Thanks all it is not the welded joint that fails when the tubing bursts.
The joint is at the cool end it is the 12" where it goes into the engine that bursts like a balloon, a very hot part under a lot of pressure.
The generator is like a spring, water in at one end and steam out of the other end fed by a pump.
If I do what some of the full size steam cars do and feed water into the hot of the generator I do not get the power for the engine.
It would probably do 100mph all day set up like that.
To get 115mph to 120mph you are pushing the limits.
Like my old motor bike days with Nitro burning supercharged Triumphs reliabilty came second as long as it lasted the distance then explodes.
Windy
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10/11/2011 08:32:19 |
Thanks ady for your reply please remember this is an experimental high speed piston engined power unit. running between 11,000rpm to 15,000rpm.
There has only to be a slight or major mechanical fault on the engine or fuel and water pumps plus extra loading on the prop through design changes or variations on the boats position on the water and the pressure can go sky high then pop.
Rules are strict regards weight otherwise I could fit sensors and various control systems.
I would still like an answer to the question is the structure of the 316 or 321 steel altered with the constant red heat that makes a fresh Tig welded joint possably weak?
Windy |
09/11/2011 22:18:15 |
My flash steam generator is made of a 6 metre length of Ø0.1875" x 24swg and a 6 metre length of Ø 0.25" x 22swg tubing tig welded together.
I use 316 and also 321 stainless and they are at red heat most of the time.
The Ø 0.25" gets the most heat and sometimes bursts at the hottest end of the generator.
After a number of such bursts the tubing needs replacing as it gets too short.
I am intending to put in a new 6 metre length of Ø 0.25" tube and after cleaning the Ø 0.1875" tig weld them together.
My query is after the Ø 0.1875" stainless has been at red heat when running the engine will the metal structure be so altered so that when welding it would be weak?
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Thread: Thank you Hull Model Boat Club |
05/10/2011 11:08:54 |
Hi Ken
The engine is loosely based on Bobs design.
A 14cc two-stroke uniflow with poppet valve steam inlet. An en 24t crankshaft with cast iron piston running in a steel liner. Inlet valve made from a good quality car exhaust valve. The cam follower is stellite tipped. Scotch crank drive to fuel and water pumps. 12 metres of stainless tubing for the generator with 3 burners. There are other tweaks but everything must be made of quality material. Will gladly help any body that is serious but its not instant success as there are many problems to solve. Windy
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05/10/2011 10:25:52 |
Thank you for your kind comments. If you find http://www.onthewire.co.uk they will keep you up to date on car and hydroplane events, contacts and history. The tethered brigade has members from all walks of life some have been active participants in the full size competition scene. There are some pictures in my album but will update them with the latest bent hydroplane ones. Windy
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05/10/2011 09:00:55 |
Thanks to Hull Model Boat Club for arranging the Tethered Hydroplane Regatta at East Park Hull last Sunday. Having had a disastrous 2011 with my flash steam hydroplane it was with the help of Tom Clement, Dave Singleton and members of the Hull Club plus a future flash steam addict who became my chief mechanic for the day that made it possible for me to achieve my personal fastest recorded speed. On a perfect day with no ripples on the water the steamer shot off and recorded over 5 laps 114.91mph. Have to find another 8mph to catch record holder Bob Kirtley. My remark before the next run was how do I make it go faster? The flash steamer must have been listening because on the next run it was going faster until aerodynamics took over and it became a steam driven flying boat and crashed spectacularly. A new narrow Dykes piston ring had been fitted for the previous Kingsbury meeting in which I never got a run through not being able to launch the hydro. The ring must have got run in and released some more power? The boat looked a mess after the aerobatics but with Freds help and a bit of wire to hold the generator it was all systems go. An alteration to the prop angle to keep the front down at speed and we were ready for action. Hydroplane hooked on to the catapult (bungee) and Dave holding it while the burners heated the generator then pressure release valve closed, boiler pressurised with the hand pump then starter cord pulled. Everything roars into life, you feel the power building up and the prop fighting to be away. Its released with a shove hoping that it’s got on to its sponsons otherwise it will not get far. It’s going faster than my first run then aerodynamics takes over and its reach for the sky again. A Hull club member has 4 video clips of the action on You tube Hull model boat club. Like most speed sports and hobbies you watch it on film and it looks flat but see things in the flesh and it comes alive. Having a life long interest in speed records having marshalled when Alf Hagon with the big V twin Jap and Tony Densham with Commuter broke records at Elvington plus many more record breakers got me addicted to models where speed was the aim. Hope I haven’t bored you but I like people to know round the pole racing is alive and kicking and maybe get some new blood into the hobby. Windy Edited By Windy on 05/10/2011 09:08:31 |
Thread: Tig Welder |
30/09/2011 14:15:02 |
I am thinking about buying a Tig Welder for light stainless and mild steel use.
Would a Wolf 200A DC or similar be suitable or do I have to pay £1500 plus for an industrial type which is then not in my price range.
Any suggestions of a suitable Tig welder in the £200 to £300 range.
I can gas weld and had a go at tig welding so have a basic knowledge of how to use one.
Windy
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Thread: Contact with person who bought my Potts Mill Attachment |
27/09/2011 13:00:01 |
I sold my Potts attachment to a gentleman who makes and repairs watches?
Think he came from the Bridlington area His Email address has been lost and I would like to get in touch with him.
If he can reply I would be gratefull.
Windy
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Thread: photo |
21/09/2011 18:35:42 |
Had the same problem untill the size of photo was reduced.
Windy |
Thread: Only one digital MEW will print? |
19/09/2011 10:51:50 |
Thanks Keith,
Problem solved.
It's a pity the 4 icons are not showing on all the issues.
Windy |
19/09/2011 01:45:38 |
Only one digital MEW number 179 can be printed.
The other digital ME and MEW can not.
MEW 179 has the buttons Index,Print, Go to page and Search showing.
The other ME and MEW magazines have the Print button missing.
Any attempt to print using right side of the mouse just gives a black image on print preview.
The latest Adobe Flash is installed.
Am I missing somthing?
Windy
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