Author Topic: Another vintage project from Great Britain, target Speed Week 2011  (Read 133753 times)

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Offline thefrenchowl

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #180 on: May 30, 2011, 11:33:33 AM »
Thanks for the link, Octane, I'll give them a go later...

So, looked again at my pile of DC Linkert bits and the scheme took shape...

The tee bit is the bottom part of the DC iddle air bleed, external, just cut down, drilled and tapped 1/4 UNF it to fit the needle bit which is the DC high speed adjustable jet. Smaller tap on the other end to screw in a brass screw with a 1.9mm hole in it where the needle gonna sit and give me some adjustment.





Slightly underdrilled the carb body and pressed the assembly in, right in the middle of the venturi:



I even found a drag racing spacer for the float chambers, that made it easy to join them...



Suspended from the seat cowl, not just pipes, there're rods in there, set the level so it's just below the end of the little brass tube on the tee piece. I will need a jet in the clear pipe, another Patrick's speciality, bit of brass rod with a hole in it!!!



That's all for now, back in the garage, it's only 4.30pm here!!! Patrick
Flat Head Forever

...What exactly are we trying to do here?...

Offline octane

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #181 on: May 31, 2011, 05:38:57 AM »
Octane,
  Man that sounds easy peasey.

Yep.....that was the easy part.
LOTS of paperwork before I finally got to that point.
Here's a screen-shot of my paperwork files
involved in getting there



Quote
  Hope to see you this year..
Thanks...and likewise !
"A designer knows he has achieved perfection
not when there is nothing left to add
but when there is nothing left to take away"

Antoine de Saint-Exupery

Offline thefrenchowl

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #182 on: June 05, 2011, 06:58:38 PM »
Hi Everybody,

!!! I'm getting dangerously close to finishing now!!! Another fruitful weekend...

What I hope will be the last bits from Brian, shafts, washers and screws for the 2 iddlers:









Also did 2 brackets for the exhaust pipes:





Bit of engine turning on the belt cover...



Spent quite a bit of time on the lanyard that gonna close the fuel valve and kill the ignition, works very well. 1st one was not quite right, so did the second one better...



Oil lines and tacho rubber mounting:





And now, Sunday, late, a nearly finished bike!!!







Just need to bring the pipe benders from work tomorrow to do the fuel and the pressure gauge lines...

Next bit should be fun  :wink:, starting and tuning...

All the best from Patrick
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Offline k.h.

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #183 on: June 05, 2011, 07:59:11 PM »
Je sacrer my favorite K model!
In theory, there is no difference between theory and practice.  But in practice, there is.--Jan L. A. Van de Snepscheut

Offline Rex Schimmer

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #184 on: June 06, 2011, 01:27:17 AM »
Patrick,
I have done the .040 lock wire hose clamp a number of times but I am not sure that tech will let them through inspection. (other comments?) Do the tubes have beads on their ends? You may be ahead to go with standard hose clamps. As Mike Donovan always said, "Never a drip with a Jubilee clip" I think that has a British meaning.

Beautiful build.


Rex
Rex

Not much matters and the rest doesn't matter at all.

bubuche

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #185 on: June 08, 2011, 04:41:10 AM »
salut patrick

ca sent la mise en route c est super
bon après il y a la mise au point mais déjà quand ca démarre et que ca tien le ralenti c est bon signe

j attend la petite vidéo qui va bien
ps:encore bravo pour ton project

a+eric

Offline thefrenchowl

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #186 on: June 10, 2011, 02:11:19 AM »
Quote
Rex: You may be ahead to go with standard hose clamps.

OK  :-D







Also finished the fuel and pressure gauge lines...









Will bring the stop watch from work to do a "drop test" and see how much fuel I can pass unassisted through this 3/8th line...

Patrick
« Last Edit: June 10, 2011, 02:22:53 AM by thefrenchowl »
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Offline octane

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #187 on: June 10, 2011, 11:01:38 AM »
Congratiulations !!!! Patrick for a brilliant job !

One thing though:
I'm terribly worried about this

.... I've got less than a 1/4" clearance between the plenum and the rear cylinder, hence the need for a dead thin hose!!!




A "dead thin" water-hose running at a distance of "..less than 1/4".." to the cylinder.
Naaaaaaaaaaaaaaaaa.
It's a flathead , it's blown , it's running at full RPM...it will get seeeriously hot.
OK, the alchohol will cool things somewhat, but still....
and the minute you stop the engine I'd bet the hose will melt in an instant.
With all the rules about "..fire sleves must cover all fuel lines to include un-valved fuel and gas lines.."
I think you'd have a hard time passing tech. inspection with this.
I know the rule isn't strictly for this but I would hate to see you
"all dressed up and no-where to go" at Bonneville.

Please check with tech. before you go.

Best of luck to you !!!
"A designer knows he has achieved perfection
not when there is nothing left to add
but when there is nothing left to take away"

Antoine de Saint-Exupery

Offline thefrenchowl

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #188 on: June 10, 2011, 06:04:33 PM »
Thanks, Bubuche and Octane for the compliments...

Lars, I see where you're coming from about the hose!!!

It's not a standard water hose... I haven't actually checked what's it's made of, but it's not rubber or PVC based... We use it in the petro-chemical industry as chemical containment for other pipes that run inside it, in case the inner pipes break or leak... Same sort of pipe the fire brigade uses, so it must be OK with heat!!!

Anyway, after reading your concerns, I borrowed my wife's hair drier and went in the garage, heated a piece of it for about 10mn at about 1/4" distance, it got very hot, couldn't touch it, but it stayed the same, it does look tough!!! I'll check at work tomorrow the markings on it, before, I was only interested in its pressure rating, it's 4 bar, approx 64 psi...

See you around, Patrick
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Offline grumm441

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #189 on: June 10, 2011, 09:05:04 PM »
Patrick,
I have done the .040 lock wire hose clamp a number of times but I am not sure that tech will let them through inspection. (other comments?) Do the tubes have beads on their ends? You may be ahead to go with standard hose clamps. As Mike Donovan always said, "Never a drip with a Jubilee clip" I think that has a British meaning.

Beautiful build.

Rex

Patrick
I was about to pipe in with a similar comment
Download the tech inspection form
http://www.scta-bni.org/pdf/2011%20Inspection%20Motorcycle%20back.pdf
Go thru the listed items on the first page
It's either yes or no, there are no grey areas
This will make it easier when you get to tech and you should have no surprises

Nice build
G

Chief Motorcycle Steward Dry Lakes Racers Australia Inc
Spirit of Sunshine Bellytank Lakester
https://www.dlra.org.au/rulebook.htm

Offline thefrenchowl

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #190 on: June 14, 2011, 03:48:01 PM »
Hi All,

Finally put some methanol in the tank 2 days ago and did a "flow test"... It flowed about 6 liters in just over 5mn through the 4mm ID drain hose on the bottom of the S&S carburettor... Then dismantled the front wheel to have it balanced and finished/redone small items and soldered a few wires for the kill switches.

So it just need the oil tank filling and that's about it...

Now looking for a van to start it somewhere quiet, can't really do it at home, too many elderly neighbours!!!

So today, after too long in the dark garage, the bike saw the light of day for a few photos and I can now concentrate on the paperwork, getting a crate etc...









Hopefully, a starting update this coming Saturday...

All the best from Patrick

PS... Also received today my 2 spare sprockets for the rear wheel AND the entry confirmation from the SCTA Whooppeee!!!



« Last Edit: June 14, 2011, 03:50:08 PM by thefrenchowl »
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Offline thefrenchowl

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #191 on: June 25, 2011, 08:31:29 PM »
Hi everybody,

Nearly two weeks since the last post in which I went from near dispair to elation...

It started last Saturday!!! Brian came to my home to pick up the bike and go to his factory... Gordon was there as well...

The bike did sputter and cough but not much else...

http://www.youtube.com/watch?v=l83FVr7wlVo

Then major mathanol leak on the carb, about an hour to fix that!!! Then no more sparks on the front cylinder and we noticed the belt just about to jump off the Ansin pulley, so called it a day!!!

On the plus side on that day, the engine turned over OK, no strange noises and nothing came loose to land on the floor...

Back at base... Remeasured everything around the ansin for a day and discovered the Ansin bracket was no more square, so dismantled everything to have it milled a bit at Brian's in the week. Followed 3 nights of hard graft to set it all up again.

My S&S MGAL did not have the choke fitted cause I broke it some years back. Luckily, I still had the bits so repaired it, thinking a bit of choke might help starting...

Sorted the magnetos, looked like a case of NOS dead condensers, so just fitted old ones I had in the draws, hurray, big blue sparks straight across the collector springs... reassemble, retime... More hours...

So this Saturday, back at Brian's for another go... The bike started straightaway, but a badly set clutch meant neutral was VERY elusive!!! More tuning on the spot... We managed about 6 or 7 starts and the bike now sound dead crisp, RESULT!!!

http://www.youtube.com/watch?v=lI7luKzeojs

Gordon was on camera duty and seems to think the camera will focus automatically on the subject from any angles...

I'll upload the rest tomorrow, or rather later today, it's 1.30am here right now!!!

A very happy and elated Patrick!!!
« Last Edit: June 25, 2011, 08:40:05 PM by thefrenchowl »
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bubuche

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #192 on: June 26, 2011, 05:11:15 AM »
salut

c est cool patrick elle a toussé  je suis ton projet avec attention car j adore tous ce qui a un compresseur

c est maintenant qu une longue mise au point commence

a titre d info pour une pression de 500 gramme sur mon compresseur j ai augmenter mon ralentit de 2.5 point a 5 point
et pour le principal j ai augmenter de 60 a 70 point pour que ca fonctionne a peu prés j ai regler avec un mano air fuel meter et une sonde lamda
 cet automne je la passe au banc dyno pour peaufiner les réglages

encore bravo

a+ bubuche

Offline thefrenchowl

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #193 on: June 26, 2011, 06:22:22 AM »
« Last Edit: June 26, 2011, 06:58:27 AM by thefrenchowl »
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Offline octane

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Re: Another vintage project from Great Britain, target Speed Week 2011
« Reply #194 on: June 26, 2011, 08:31:06 AM »

encore bravo

Moi, je dit BRAVO aussi !
"A designer knows he has achieved perfection
not when there is nothing left to add
but when there is nothing left to take away"

Antoine de Saint-Exupery