series 3 lambretta

[henri]

after 7 years the sweaty panic attacks an screaming nightmares had stopped , so i thought it was time to own another lambretta.bought on tuesday an havent slept since .
seems if you run a bretta with a clogged exhaust/full advanced timing/an no air filter with clogged barrel fins up an down a italian farm track they seize , mucho surpriso. 
then in your attempts to "fix" you use a oxy-aceteline torch to heat piston , further melting it ,then hide in the barn for 40 years so mamma dont find out youve been a naughty boy this is what you get .                                                                    3 days of heat n soaking in diesel n penetrating oil ,then loose patience an "get medieval" on it . a de-constructed barrel an gudgeon pin cut out from piston to free barrel from cases .
but cranks totally seized , mag housing bearing must of lost its inner seal at some point ,cut away outer seal to get penetrating oil in to find no grease just a sandy paste of old 2 stroke oil an farm track dust . an webs seized to cases with same paste +rust an melted ali .

so any ideas lads on how to get mag housing off without smashing it , oh forgot to say the 2 bolt/puller threaded holes have both got ,yes you guessed it ,damaged threads . thinkin drill n re-tap to m7 an put some pressure on with heat an drive crank from drive side .cranks scrap an mag housings got damaged threads+snapped cowling bolt +snapped lectrics plate screw . all i really want to save now is the main case . H    

[henri]

just for giggles .
when you run a over-heating 2 stroke on bad petrol an full advance timing ,it can eat ya piston crown an melt the head . looks like a lunar surface ,an some of those craters i could fit my thumb end into . an ive got fat thumbs from hitting em with hammers .H

[hobbyhorse]

You are a masochist Henri.

[robd]

I'd be tempted to cut away the mag flange first. If you can cut a trough in it front to back, as close to the mating service with the main case its grip on the case will be reduced

[henri]

finally after 14 days of heat/hammer/soak an swearing ,it came apart undamaged , took a crank puller/pusher on the primary side an a roofers tar burning torch . an heres what was in the cases , dont run a 2 stroke up a farm track with no filter . H

[dazzz]

I'd clean that before you put it back together lol.