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General Discussion / Re: Farm Pumper
« Last post by cobbadog on 16 April, 2021, 09:18:11 pm »
When did Southern Cross start their models?
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General Discussion / Re: Farm Pumper
« Last post by Eric Schulz on 16 April, 2021, 06:38:12 pm »
As we know, Rosebery only started in November 1921. Langwill Brothers & Davies, who were Fuller & Johnson agents, probably go back to 1915. Certainly by 1916.

Eric
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General Discussion / Farm Pumper
« Last post by rustyengines on 16 April, 2021, 10:46:29 am »
Who was the first to copy the F&J Farm Pump engine in Australia
Rosebery or Langwill or ?
Ian
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Stationary Engines / Re: Alfa Laval alias Ronaldson Tippett 3 Hp model N
« Last post by Grasshopper on 15 April, 2021, 08:33:21 pm »
Hi folks,
Rudy you are right with rotation term ology, looking at the drive end my Engine rotates the magneto clockwise so that clears things up a little.
I haven't had a chance to check the base out yet on the magneto, hopefully as you say Rudy the plate will only be a spacer.

I have had a few urgent things pop up today that needed attention so hopefully can get at it on the weekend.
Cheers
Grasshopper Max
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Stationary Engines / Re: Alfa Laval alias Ronaldson Tippett 3 Hp model N
« Last post by AUSDOK on 15 April, 2021, 02:43:53 pm »
I don't think that the base plate requires helicoils as the magneto has threade holes in the base. The holes in the base are locating holes. Re magneto direction to save any further cinfusion may I suggest that we use the stardard that the rotation of a magneto is always taken from the drive end. If this is used the magneto in a r and t is clockwise thanks Rudy
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Stationary Engines / Re: Alfa Laval alias Ronaldson Tippett 3 Hp model N
« Last post by cobbadog on 15 April, 2021, 02:27:36 pm »
Yep that's a good way of testing the condensor so that seems to be good.
Reversing the direction can be done on some but not all maggies like the Lucas RS1 & SR1 not sure about your Wico but the description is correct for doing so when it can be done.

Once you have it together you can bench test it for rotation as it will make a spark one way better than the opposite. Ensure that the spark can jump to ground.
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Stationary Engines / Re: Alfa Laval alias Ronaldson Tippett 3 Hp model N
« Last post by Grasshopper on 14 April, 2021, 10:15:04 pm »
Hello John,
To test condenser, have condenser lying free on a flat surface, set multi meter to 10 Meg olms and put positive probe to positive of condenser and earth to earth.
If the condenser is good a low value should show and gradually increase in value to a cut off point, this is the condenser charging itself.
Do this test a few times, if the values do not rise and readings are staggered then condenser is faulty.
Switch multi meter to dc volts select 20v or 3 decimal points on multi meter screen and observe reading from capacitor positive to positive, negative to negative end, voltage say .525v may appear and slowly decrease as condenser winds down.
That's a good condenser.
When you rotate the  armature you can feel the flux starting to build so magnet is good.
Yes checking all the wires should be done.
When I get it assembled again I will be checking if rotation is correct. I always thought the actual armature rotation was changed somehow within the magneto but this is not the case.
The actual driven input is changed by placing the magneto on a different motor running output the other way.
This is compensated by turning armature to a new flux field at maximum strength, then loosening the cam and finding new point position starting to open points. tighten cam holding screw down and recheck opening and maximum flux force.
Fit magneto and time magneto to engine timing marks.
Quite a bit of messing about but worth it in the end.
See how i go as just starting to get ready to put magneto back together, bearings are good, rotor is clean.
John your idea of Helicoils a good Idea, have never used them before but worth a try, will give it a go.
Cheers
Grasshopper Max
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Stationary Engines / Re: Alfa Laval alias Ronaldson Tippett 3 Hp model N
« Last post by cobbadog on 14 April, 2021, 04:18:37 pm »
How are you testing your condensor? What do the magnets feel like as you rotate the maggie? Yes, double check all earths. As for the base why don't you use helicoils, far simpler than making a new base? Ensure you are rotating the maggie the correct way and that it does rotate the correct way when installed.
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Stationary Engines / Re: Alfa Laval alias Ronaldson Tippett 3 Hp model N
« Last post by Grasshopper on 14 April, 2021, 09:50:11 am »
I have removed Wico magneto from the motor and tested the coil with a reading of 5.2 on 20K ohms setting on my multi meter for secondary windings, this is apparently ok.
Primary all ok.
Removed condenser/capacitor at first I thought was dead but on test this is perfectly ok.
Next job check all ground points and wiring in magneto and reassemble, check rotation status and get a new plate made up for base and see where we are with it.
Have sources a Lucas SR1 Magneto, but think I might have stuffed up not realizing it is most likely an impulse magneto, find out when Mr postman delivers.
The life and times in getting a little engine to run.
Cheers
Grasshopper Max
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Stationary Engines / Re: Impulse mechanism on Southern Cross Small P
« Last post by allisb on 13 April, 2021, 08:01:47 pm »
That?s ok. We will be camping there, so it may knock the mossies back a bit for us!
Rx
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