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Author Topic: ARD Magneto  (Read 120692 times)

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Offline Jim F

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Re: ARD Magneto
« Reply #175 on: March 18, 2007, 07:56:16 PM »
Hope this is what you need Rich

Jim
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Offline puppytrax

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Re: ARD Magneto
« Reply #176 on: March 18, 2007, 08:08:18 PM »
Quote from: big-jim on March 18, 2007, 07:56:16 PM
Hope this is what you need Rich

Thanks, Jim! That's quite good!  ;)

It looks like your aluminum belt-box has holes to allow the mag to mount standing up *or* lying down...Is that right??
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Offline Jim F

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Re: ARD Magneto
« Reply #177 on: March 18, 2007, 08:17:57 PM »
Yes the hole,s are positioned 45 degrees apart from the center line of the shaft so you could
position the mag at 4 differant locations if clearance allowed

J
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Offline puppytrax

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Re: ARD Magneto
« Reply #178 on: March 19, 2007, 03:29:13 PM »
Quote from: big-jim on March 18, 2007, 08:17:57 PM
Yes the hole,s are positioned 45 degrees apart from the center line of the shaft so you could
position the mag at 4 differant locations if clearance allowed

big_jim - Is your magneto housing only drilled & tapped for two bolts?? Mine has 4 holes/4 bolts...

cafe75-550 - The belt is on its way!   ;)
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Offline cafe75-550

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Re: ARD Magneto
« Reply #179 on: March 19, 2007, 06:50:22 PM »
Quote from: puppytrax on March 19, 2007, 03:29:13 PM
Quote from: big-jim on March 18, 2007, 08:17:57 PM
Yes the hole,s are positioned 45 degrees apart from the center line of the shaft so you could
position the mag at 4 differant locations if clearance allowed

big_jim - Is your magneto housing only drilled & tapped for two bolts?? Mine has 4 holes/4 bolts...

cafe75-550 - The belt is on its way!   ;)

Thanks Rich!   ;D
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Offline Jim F

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Re: ARD Magneto
« Reply #180 on: March 20, 2007, 08:45:36 PM »
Not sure rich but will check it out tomorrow

might need to put the other bolts in huh?

Jim
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Offline Jim F

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Re: ARD Magneto
« Reply #181 on: March 26, 2007, 05:04:29 AM »
Good morning
This is Jim's easy timing of the ARD
hope it works rich
 
real fast
I have mounted the ARD on the bike
and I am ready to set up the degree wheel
 
1. Find TDC on #1 then turn motor so degree wheel is 34 to 36 degrees BTC
 
2 Is this where the points start to open?
 
3 If so then I assume that this is when the number 1 piston fires
 
4 bolt up housing, slip rotor into place, install cap and plug wires
 
then go riding
 
hope its that easy
 
Jim
 
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Offline MRieck

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Re: ARD Magneto
« Reply #182 on: March 26, 2007, 05:15:30 AM »
Quote from: big-jim on March 26, 2007, 05:04:29 AM

 
I hope its that easy
 
Jim
 

Now you've gone and jinxed yourself. ;) ;D
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Offline puppytrax

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Re: ARD Magneto
« Reply #183 on: March 26, 2007, 05:23:47 AM »
Let me see if I can paraphrase the ARD/Triumph instructions...   ::)

Turn the pulleys...until the points of the magneto are just beginning to open...set the piston...36 degrees before top dead center on the degree wheel...

My reading is that the points open at 36* on compression stroke...does that sound right???   :P

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Offline Jim F

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Re: ARD Magneto
« Reply #184 on: March 26, 2007, 11:36:22 AM »
ahhhhhhhhhh rich, thats the ticket.

but if the cap is marked #1 and thats where you want the rotor to fire first
you still have to have the points open at 36 degrees and at that point the rotor should be in the
position to send the charge to the plug

I think I am making this too complected

I just need to go and set in front the bike and take a long hard look at it and figure the damn thing out

sigh

Jim
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Offline Jim F

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Re: ARD Magneto
« Reply #185 on: March 26, 2007, 11:42:51 AM »
Gee i am starting to answer my own thread...............help me

So you get the engine at 36 degrees before TDC on the compresion stroke

then rotate the pulleys until the just open?

humm
sounds right

but what about the position of the rotor?

dang

lol.........J
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Offline puppytrax

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Re: ARD Magneto
« Reply #186 on: March 26, 2007, 12:51:47 PM »
Quote from: big-jim on March 26, 2007, 11:42:51 AM
So you get the engine at 36 degrees before TDC on the compresion stroke
then rotate the pulleys until the just open?
but what about the position of the rotor?

Been a few years, but...

You want the degree wheel to be set at TDC = 0*...I use a dial indicator with a long stem down the spark plug hole...you need a pointer attached to the case so you can bend it to point at the degree wheel...0* at TDC...

The rotor should be pointing at # 1 lead/plug wire...You leave the pulley (it is the crank pulley on mine) just snug until you get the #1 piston at 36* BTDC and the rotor is pointing at #1 lead...a continuity tester/light helps here...I have a vest pocket job with two alligator clips...as you rotate the crank and look at the light, it should go out just as the degree wheel passes 36* BTDC...if it's off, un-snug the crank pulley and rotate it slightly one way or the other...the bigger the degree wheel, the more accurate the timing...keep snugging down & unsnugging the grub screws until you get it right on...then snug them down good...

Keep in mind my memory of these is some 35 years old...   ;D

It would not surprise me to find my method was back-asswards...   :P
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Offline Jim F

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Re: ARD Magneto
« Reply #187 on: March 27, 2007, 11:21:58 AM »
well you cant do the pulley thats attached to the mag as this is keyed I believe

I was just wondering how to orientate the rotor to where the mag fires on #1

it has to be where the cap is marked #1 (duh) and if you hit 36Degrees and the light goes out and you are on #1 then

BINGO

lets go riding.................Or in my case I need to make brackets for the fairing and the rear sets, new tail section, weld collector up, ETC ETC ETC ETC ETC

dang. should be finished in the middle of winter lol

thanks Rich

Jim
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Offline puppytrax

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Re: ARD Magneto
« Reply #188 on: March 27, 2007, 12:49:05 PM »
Quote from: big-jim on March 27, 2007, 11:21:58 AM
well you cant do the pulley thats attached to the mag as this is keyed I believe

The shaft has a keyway, but the pulley doesn't...so no key...on mine, anyway...

If you've noticed, the mag pulley is the only one with a tapered bore...and two threaded holes so you can make up a "pulley puller" to get it off; the crank pulley is straight-bored and held in place by set-screws...I don't like them setscrews...   >:(

Quote
it has to be where the cap is marked #1 (duh) and if you hit 36Degrees and the light goes out and you are on #1 then

BINGO

...???...Bingo??...The farmers dog??...your new hobby??...Your jet is out of fuel??... ???
« Last Edit: March 27, 2007, 12:52:46 PM by puppytrax »
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Offline Jim F

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Re: ARD Magneto
« Reply #189 on: March 28, 2007, 05:02:10 AM »
If there is a way to machine a flat on the straight shaft to give the set screws more areas to hold
is the way to go but oh well

will take pictures of timing and video when its running

to bad we don't have a way to send the smell of race gas over the internet

ahhhhhhh race gas in the morning.......its better than..............well......maybe

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Offline cafe75-550

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Re: ARD Magneto
« Reply #190 on: March 30, 2007, 04:47:37 PM »
Just in for all of us MkII owners!

The distributor cap and rotor on the ARD MkII for the 750 are off of an early Fiat 600 (early to mid sixties).



Note this is not the same cap as a Fiat 600D (later model), and seems somewhat hard to find .I got mine off of ebay, but could only find one place online to get the cap, and it was in Germany for $50. The rotor is the same as the ones for the later Fiat 1100's, but the 1100 cap doesn't have the 90 degree angle on it. The cap is probably the right size, but looks like a standard auto dist. cap. They're easy to find, and I don't think they would interfere with the engine when mounted, so it might be a solution also.

I bought 2 of the earlier caps though (and not for 50 bucks either  ;)), so hopefully I should be ok for awhile... ;D
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Offline Jim F

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Re: ARD Magneto
« Reply #191 on: March 31, 2007, 02:32:02 PM »
thanks for the info cafe75-550

If Terry and Rich see this and I know they will they will be appreciative too

Jim
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Offline Jim F

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Re: ARD Magneto
« Reply #192 on: April 01, 2007, 08:03:17 AM »
Where gettin there
pulled the carbs and bolted up the housing
need to mount the degree wheel and get it timed

more to follow

Jim
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Offline puppytrax

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Re: ARD Magneto
« Reply #193 on: April 04, 2007, 05:36:26 PM »
While Big-Jim is catching his breath from kicking that big Four over...   ::)

Here's the beltbox for my home brewed magneto...Square section aluminum tubing + round aluminum tubing...needs to be welded, of course...   ;D

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Offline Terry in Australia

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Re: ARD Magneto
« Reply #194 on: April 05, 2007, 05:03:15 AM »
G'Day Rich, that looks really good mate, and I reckon I could weld that with my mig! Cheers, Terry. ;D
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Offline Jim F

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Re: ARD Magneto
« Reply #195 on: April 12, 2007, 08:18:13 PM »
thats been welded and already sent to Mr. Rich

And where the hell have you been Terry? ;D

bee riding I hope

Jim
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Offline Terry in Australia

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Re: ARD Magneto
« Reply #196 on: April 13, 2007, 05:21:43 PM »
G'Day Jim, how are you mate? Yeah, I finally got my K0 that I bought from Andy in Long Island and the weathers still great for riding, so you can guess what I've been doing, ha ha! Cheers, Terry. ;D
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Offline puppytrax

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Re: ARD Magneto
« Reply #197 on: April 13, 2007, 05:52:03 PM »
Haven't received the custom-welded beltbox from big_jim yet, but I did get in some square aluminum tubing and the new Fairbanks-Morse magneto from MainelyMagnetos today...Here's a couple of comparison pics, the new Maine Mag is the darker one with the red kill button; the other is the rebuilt ARD mag from the ARD CB550 magneto conversion...you can see there is a difference in the mounting bolt circle...the rest is the same...
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Offline Jim F

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Re: ARD Magneto
« Reply #198 on: April 15, 2007, 12:31:53 PM »
Just to keep the thread current Rich

you will receive the housing on Moonday

call me if any questions

Jim
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Offline puppytrax

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Re: ARD Magneto
« Reply #199 on: April 16, 2007, 09:03:46 AM »
Hey Terry - big_jim welded up my beltbox for me...Whatdya think??   ;D
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