[vhgmcbuddy]

Where is it that you live? Sorry for some reason my page has only just updated I thought my previous response had not been listed. JC

[vhgmcbuddy]

Iain
I had a very similar experience with my MG2 137 the magneto had a label on it stating that it had been rebuilt, fat spark when driven by a drill but fitted to the engine bang bang was all I could get I persisted for days trying everything I could think of and then eventually I fitted a later mag and the engine started first pull and has continued to run perfectly ever since. Do you have a friend or member nearby that has an MG5/6/40 that would lend you a running magneto to test on your engine?

[vhgmcbuddy]

Iain, here’s a link to Sean’s excellent restoration of a 56 which you might find useful if you haven’t already seen it.
There’s a lot of information on magnetos and where he got parts from. Or, just a thought, there’s a few cheap series A’s on that auction website at the moment with good sparks which you could get the coil from.
Peter

Simar 56A Rototiller – Serial No. 561621

[vhgmcbuddy]

No. The only one I know of is not available for a borrow.
I have asked. But no chance.

[vhgmcbuddy]

Iain
I had exactly the same scenario with the magneto on my MG2 137 eventually I fitted a replacement magneto and it has never been an issue since but I worked for days trying to get it to run on the original which gave every semblance of being serviceable. Have you a machine nearby you could borrow a mag off?

[vhgmcbuddy]

Thanks Charlie
I took the barrel and piston to the machine shop today. He said he can resleeve the bore no problem however the piston will be a challenge but can be done. Note on my photo the large groove io the side of the piston, caused by a wayward gudgeon pin clip. Is there meant to be any sort of groove on the piston? I am not sure if I am looking at pure damage or if there is some kind of port arrangement among the damage. I found a photo of a similar Simar (55?) that shows the piston without any groove.
It is worth mentioning at this point that your assistance is invaluable Charlie, I am indeed very grateful for all your input.

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[vhgmcbuddy]

The condenser is new. As for testing the coil, can anyone tell me how to test it.
Will an electric motor insulation tester be sufficient? I think they produce about 5,000volts.
Or is a special test rig required?

Thanks.

Iain.

[vhgmcbuddy]

I fitted the Magnito today. I have a “fat” spark. I have removed the cylinder head and set the timing to TDC.
FlusHed the fuel system and refilled with fresh Petrol.
It s still will not start!
The best I managed was Bang,Bang!
I am running out of ideas.

[vhgmcbuddy]

Thanks Charlie, I will upload again tomorrow. Do you know where I could get a piston and barrel from? I’m hoping my amazing engineer friend can do something with them. Thanks for the drawings, very interesting!

[vhgmcbuddy]

Sorry, the photos didn’t upload but here is a pic of the piston. A very sad sight!

[vhgmcbuddy]

Hello everyone. I have just saved a Simar 56 from scrap and have found it to have no compression. A quick strip down found severe damage to the piston and cylinder from a dislocated piston pin clip. I am going to try The engineer tomorrow to see if he can reuse it but I’m not holding my breath! I am in NZ and have not been able to find any parts here for it! If anyone has any spares please let me know! Thanks heaps.
Regards Alastair

[vhgmcbuddy]

Hi Gregg, so sorry for the late reply!! Haha 3 kids and my life is busy! It is nearly complete now and looking great! Thanks to Charlie I have the original decal in place on the mill shroud and I have had new nameplates made. I managed to source new tyres as well which was the most difficult part! The original wheels were past it so I have had new aluminium ones cast up. I just have the cables to go and it’s all done!

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[vhgmcbuddy]

Well, I have completed a strip and rebuild of the Magnito. I have a good spark, 10mm as per Trusty220’s method.
However, I am a bit confused about the spark advance.
I have found no evidence of bob weights to advance the spark.
Can someone shine a light into my darkness.

[vhgmcbuddy]

Strip down coming along nicely, so much original paint underneath, it would be a crying shame to paint it.

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[vhgmcbuddy]

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