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Member postings for vintage engineer

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

Thread: Ally Pally Exhibition
19/01/2020 10:59:57

Very disappointing, won't be going next year. Seems to get smaller every year and real pain to get to!

Thread: Converting guillotine from manual to air power.
12/01/2020 20:51:15

The formula is simple. Area of piston times pressure gives you force.

Thread: Does a particular thread hold better into brass
12/01/2020 20:47:14

You could use other thread forms, acme, square, buttress or truncated.

Thread: Best charts to find rod max / min diameters for BSW and Metric and BA
12/01/2020 16:56:03

How much?? I paid 50p for my copy!

Posted by martin cross 1 on 12/01/2020 16:48:22:

Hi, buy a Zeus Data Charts and Reference Tables book around £3-7.00 amazon have loads. Got all you need in it.

Thread: Colchester rescue.
11/01/2020 21:39:13

I worked on many Clochesters. I think the gear change levers are the same on all models just speeds will vary.

Thread: magic 127 TOOTH ?
11/01/2020 21:31:21

The American and Scottish inch were longer and the French pouce was even longer at 27mm!

Thread: Co2 emissions.. Steam or diesel best?
10/01/2020 19:46:13

Steam lorries are exempt from the London LEZ.

Thread: Sent lathe back
10/01/2020 19:44:59

Perhaps someone in their workshop was not doing what they should have done. They obviously tried to resolve the problem and they did the honorable thing and took it back and refunded you.

Thread: Opening a Port
01/01/2020 18:33:47

Yes that's the one, a typing error on my part. I ran a single 1 3/4" SU carb and 1 3/4" 3 branch stainless exhaust with this set up.

Posted by Phil P on 01/01/2020 10:54:53:

Hi Vintage Engineer.

I think you might be referring to the 12G295 head, I used to run one of those on my Mini van when I was a lad in the 70's. If I used one now I would need a bigger carb and exhaust to take advantage of it as well.

To be honest I am not trying to make the Traveller go a lot faster, I am just taking the opportunity to build the engine to a better standard than they were when mass produced, I am static balancing all the moving parts and being careful with the cam timing, fitting duplex timing set up etc etc. I am after a smoother running reliable engine that I dont need to be spannering in years to come.

Phil

01/01/2020 10:44:07

If you want to make your Minor go better. Try and get a 1295g head. These were fitted to Austin Princess 1100's. They have bigger valve and better ports. But you have to skim .125" of the head to get the comp ratio back up as these engines used flat topped pistons. I built a genuine 100 mph Minor Pick Up using all BMC parts except the exhaust manifold.

Posted by Phil P on 31/12/2019 12:20:34:

I have just done a port matching exercise on a spare 1098 A series engine for my Morris Minor.

It was surprising just how bad they were when I took templates form each part.

I used a solid carbide burr in a die grinder on mine, and it was very effective and quick to do the job.

**LINK**

minor manifold 005 09-10-19.jpg

minor manifold 002 12-10-19.jpg

Phil

31/12/2019 20:33:22

Try to not take too much material from the inlet ports as they way too big as standard to get optimum gas flow. If you are not competing in VSCC events, dividing the ports into four makes a big improvement.

Thread: Any real risks corrosion etc combining aluminium and steel
29/12/2019 10:56:42

The tape Aston Martin used was a disaster as the cotton tape would dry out in the summer and absorb water in the winter which would cause the aluminium to rot like hell!

Posted by Phil Whitley on 28/12/2019 16:28:52:

Astom Martin used to use aluminium skins rolled and folded onto a steel tub chassis, wherever steel and aluminium touch, they use a cotton cloth soaked in what appears to be something like Waxoyl or Anchor wax, wrapped around the edge, and then the aluminium is clenched onto the steel like the edges of a door skin. Something like Sylglass tape would also work, if you can still get it. Steel bolts into aluminium can be treated with waxoyl, Densogrease or the silver version of Coppaslip grease, which is not, as far as I can remember called Allyslip! The whole purpose of seperating dissimilar metals in this way is to stop the ingress of water, which becomes an electrolyte between the dissimilar metals, and thus creates a battery, with the resultant electrolytic corrosion. Regardless of the materials, if they are dissimilar, a moisture resistant barrier will minimise the problem. It is like putting vaseline on battery terminals!

Phil

Thread: Soldering with tin
13/12/2019 20:17:01

Pewter mugs are made from tin.

Thread: Why mostly manual cars in UK
08/12/2019 10:27:25

Any clues to what you drive?

Posted by Vic on 08/12/2019 10:06:44:
Posted by vintage engineer on 07/12/2019 21:54:52:

The only reason modern cars have dual mass flywheels is they can cut costs by using weaker crankshafts and gearboxes. It's cheaper to make a dual mass flywheel than stronger cranks and gearboxes.

If you fit a solid flywheel to most modern cars you will snap the crank!

I repeat, my car doesn’t have a dual mass flywheel and it’s not yet three years old.

07/12/2019 21:54:52

The only reason modern cars have dual mass flywheels is they can cut costs by using weaker crankshafts and gearboxes. It's cheaper to make a dual mass flywheel than stronger cranks and gearboxes.

If you fit a solid flywheel to most modern cars you will snap the crank!

07/12/2019 12:26:34

Jaguar autobox fluid is £100 a litre!

Thread: More evidence that the world has gone mad!
07/12/2019 10:22:23

They have a problem in Spain as they are starting to get PC. The Spanish word for the colour black is Negra and Negro!

Don't confuse coño and cono!

Edited By vintage engineer on 07/12/2019 10:25:56

Thread: Why mostly manual cars in UK
07/12/2019 10:18:37

That's OK until one of the ABS sensor fails and then you are up to you neck in the brown sticky stuff! I will stick to my Jeep with manual diff locks rather than rely on dubious electronics!

Posted by old mart on 06/12/2019 20:04:31:

I got a chance to drive a Land Rover Freelander at a test track near Honiton in Devon. It was automatic, and had a number of push button options for driving on slippery surfaces. I was impressed at the difference gained just by pushing a button. I drove it down a 1:3 slope covered in loose pebbles and dirt, completely safely and commented to the instructor that I would not have been happy riding my Beamish Suzuki down there.

Edited By old mart on 06/12/2019 20:06:21

Thread: Nuts
04/12/2019 13:03:12

I was taught that 1 1/2 times diameter was the maximum thread needed any longer thread wouldn't be any stronger.

Thread: Cracking a bolt
04/12/2019 11:02:14

Not all bolts are in tension. Sadly the RAF Red Arrows had one of their pilots killed because a bolt had been incorrectly fitted. The fitters had over tightened the bolt that held the parachute and ejection seat together rendering the parachute inoperable. The bolt was supposed to loose in the pivot but no one told the fitters.RAF Crash

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