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Magnetos, Ignition Coils and Spark Plugs Discussion about magnetos, buzz coils, spark plugs, ignitors and low tension coils.

Magnetos, Ignition Coils and Spark Plugs

Ronaldson and Tippett Type N Magneto Coupling and Timing


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  #41  
Old 01-26-2019, 12:40:14 AM
cobbadog cobbadog is offline
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Default Re: Ronaldson and Tippett Type N Magneto Coupling and Timing

Great news about it now working and it is a shock that you don't want to get too often but it is a pleasing result.
It usually is something simple that goes wrong and a bad connection is just one of them. Look forward to the fuel system being sorted.
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  #42  
Old 01-26-2019, 01:08:43 AM
Pollardd Pollardd is offline
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Default Re: Ronaldson and Tippett Type N Magneto Coupling and Timing

Here is a picture of what the Magneto looks like inside.
Just in case you were wondering
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  #43  
Old 02-24-2019, 07:23:35 PM
Pollardd Pollardd is offline
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Default Re: Ronaldson and Tippett Type N Magneto Coupling and Timing

Hi Guys,
I managed to clean out the fuel tank. There was all manner of rust in there.
Cleaned out the carby and put it all back together.
Fuel in, Oil in, I gave it two cranks and it started. i couldn't believe it.
The little knob to adjust the mixture is missing a little friction thing so it moves around with the vibration but other than that I think it is a goer

Here is a picture of where I put the timing marks.
I'll stamp them in the flywheel later.
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Here it is all together
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And of course the mandatory video
https://www.youtube.com/watch?v=muRO1hUx4iA

Now I just have to think up something for it to do.
Thanks again for all your comments and assistance.
David
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  #44  
Old 02-24-2019, 08:15:40 PM
AussieIron AussieIron is offline
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Default Re: Ronaldson and Tippett Type N Magneto Coupling and Timing

I don't have an N type anymore,so I can't look, but I think there was a short coil spring under mixture screw head to stop it turning. Hope my memory is ok on that. Good to see you got it going. Good feeling isn't it? -Neil.
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  #45  
Old 02-24-2019, 08:52:34 PM
Pollardd Pollardd is offline
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Default Re: Ronaldson and Tippett Type N Magneto Coupling and Timing

I did find the little hole and there is a half a spring still in there.
So your memory is still good!

I thought it may have a pin on top of the spring that contacts the underside of the knob and gets fired out when you remove the knob. I have a repo manual and it has an exploded view and a parts list and that spring/hole is not shown. It actually has a larger spring around the shaft of the fuel mixture knob.

There is like a row of ratchet groves on the underneath of the knob for something to contact. If there is enough travel on what is left of the spring and enough clear section on the hole I'll make a little pin. with a domed head.

I thought I would be dicking with stuff for weeks trying to get it to start. I couldn't believe when it started first go with only two cranks of the handle.

Once I get the mixture know sorted I'll fill the cooling tank with water and let it run for a while then check the compression again.
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  #46  
Old 02-24-2019, 09:03:18 PM
eddie bedwell eddie bedwell is offline
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Default Re: Ronaldson and Tippett Type N Magneto Coupling and Timing

Hi Team,
Aussieiron is correct in that there is a small coil spring, R&T Part No (V-304) under the needle valve wheel to stop movement during operation.
Hope this helps.
Cheers,
Eddie B.
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  #47  
Old 03-03-2019, 06:46:25 AM
Pollardd Pollardd is offline
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Default Re: Ronaldson and Tippett Type N Magneto Coupling and Timing

My engine has another blind hole next to the hole the mixture screw goes in.
There was a little spring down the hole that I have subsequently lost.
I made a little pin that fits in the hole and found a spring that sits nicely around the pin.
Now when I screw the mixture screw down the head of the pin rubs against the creations under the head of the mixture knob. It holds it in place nicely. If it wasn’t made this way originally perhaps it should have been

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