056mag ignition issues

[Boomer 87]

Just rebuilt a 056 mag, split cases new bearings etc etc. Got it back together, have no spark. It has the Bosch ignition system. The ignition plate is slotted, not knowing any different i centered it and tightened it there. Could that have any bearing on the no spark? I assume the slots are.simply for advance adjustments but idk. Im goin to double check the kill wire and switch but im not hopeful. I bought non running for a mechanical issue. So coil condition was unknown.

 

[rupedoggy]

056 are famous for ignitions going bad

 

[Mad Professor]

When mine went bad it would spark/start cold but lost spark when it warmed up. I think this is typical for the Bosch ign.

Check over all your wiring if the saw (might have) had spark before rebuild.

Look up foggysail fix for the Bosch coil

 

[Boomer 87]

I rechecked everything this morning, been through every scenario. The coils simply dead. At this point i think id rather switch to a SEM setup

 

[Yotaismygame]

It should of had a SEM setup on it already. The mags have a specific ignition and flywheel setup compared to the rest of the of the 056 family. Not saying a whole other ignition won’t work though. Someone swap it out already?

 

[Boomer 87]

Idk its weird my 056av had an SEM setup on it already but this 056mag was a bosch style. Ive read i can convert it back to a 041 points style ignition since the used crank i put in had points cam ground in.

 

[Yotaismygame]

I don't see why not. But like I said before the Mag ignition is different from the rest. The ignition module is similar to the 2100 and the flywheel is one piece instead of two. Could use a points ignition but replace the points with a module too.

 

[Brushwacker]

Does your flywheel and ignition match. 1of the 1st ignitions i got for an 056 would not work cause it took a different flywheel.

 

[Kanscruzer]

I don't see why not. But like I said before the Mag ignition is different from the rest. The ignition module is similar to the 2100 and the flywheel is one piece instead of two. Could use a points ignition but replace the points with a module too.

If you use a 2100 SEM you will need a longer spark plug lead.... I vote go SEM

 

[Kanscruzer]

Just rebuilt a 056 mag, split cases new bearings etc etc. Got it back together, have no spark. It has the Bosch ignition system. The ignition plate is slotted, not knowing any different i centered it and tightened it there. Could that have any bearing on the no spark? I assume the slots are.simply for advance adjustments but idk. Im goin to double check the kill wire and switch but im not hopeful. I bought non running for a mechanical issue. So coil condition was unknown.

It ran BEFORE you took it apart?

 

[Boomer 87]

I got it non running bc the keyway in the crank was busted, so it needed a flywheel and crankshaft. So i cant confirm it had spark prior to tear down. All i know is its a bosch stator plate, and a two piece flywheel/fan assembly. If theres different flywheels for the bosch unit i dont know anything about that. I know the used flywheel i got matched the damaged one i got with saw, the damage to the crank matched the damage on the flywheel so they were mated at one point.

 

[Yotaismygame]

Wait so you replaced the crank because the key way was damaged? Or was it more of a might as well do it while its apart kind of fix?

 

[Boomer 87]

I replaced th crank because the keyway was damaged, it was also leaking bar oil into the crankcase, it had a myriad of issue warranting the case split.

 

[Boomer 87]

 

[hotshot]

View attachment 821087

WOW, man made damage no doubt!

Do you think that the hack mechanic couldn't get the original key out?

I had one 045 come in with half the key still buried in the crank, but it was absolutely hidden if you didn't know where it should be. I was able to save that one.

They had ground a “keyway” up through the FW threads, pioneering a new method w/ a thin key & keyway to get the FW to stay put, lol.

 

[TheTone]

The 056, as mentioned above, has serious ignition problems, as well as parts changes during production. Probably the best source for this information would be @HarleyT .

 

[Kanscruzer]

WOW, man made damage no doubt!

Do you think that the hack mechanic couldn't get the original key out?

I had one 045 come in with half the key still buried in the crank, but it was absolutely hidden if you didn't know where it should be. I was able to save that one.

They had ground a “keyway” up through the FW threads, pioneering a new method w/ a thin key & keyway to get the FW to stay put, lol.

I second that WOW

 

[Kanscruzer]

If you're set up with a good Bosch setup do the foggysail shuffle ,er conversion repair it works, cheap, almost fun . Replace kill wire if it is frayed, starting to get hard ( we're still talking about chainsaw , right)

 

[HarleyT]

View attachment 821087

Looks like the work of a real mean miniature beaver!!

 

[HarleyT]

Nah, I would not be a good source of help. I just focused on fixing them back to the factory's setup.