Casings won't split

[jellerby]

Motovespa casings won't split, removed all the bolts and clutch and tapped with hammer and nothing. Is okay to use a bit of heat around the crank bearings too loosen the grip of them? 

Any ideas?

[ironsloth]

Rubber (Timmy) mallet, gently t**t it all the way around.

[jellerby]

Gently tapped the top above carb box with a rubber mallet and didn't shift, its stubborn 

[gillie]

im guessing your rebuilding it anyway so lots and lots of heat and a rubber or hide hammer

[henri]

heat round the main bearing on fly side an locating dowel at bottom of gearbox ,nxt to filler hole .on really stubborn cases you can use a punch on end of dowel to break the gasket seal ,but only til cases just crack apart a pencil line width .an also put clutch an flywheel nuts back on flush to end of crank an using a soft hammer wallop end of crank to move it side to side an crack gasket seal .it helps to hold kickstart 1/4 turn down aswell to stop quadrant catching on cases an run heat along gasket line to encourage it to give up its grip.
its just patience , heat ,wallop , more heat ,wallop ,etc ,they will split . H

[jellerby]

Just tried again, tapped all around the casings where they meet with a rubber mallet, heated up the flywheel bearing and still won't split! How much heat can you use on the casings? I don't want to damage the casings or crank if possible. 

[jellerby]

Does the clutch have to be in the engine still on a P series? Opposite to the smallframe where the clutch is removed?
What part of the engine is the 'dowel? 

Cheers

[mijapxman]

www.ebay.co.uk/itm/Vespa-Crankcase-Splitter-Tool-T5-LML-5-Port-/202006270968?hash=item2f088313f8

One of the above, some heat on the cases and tapping with a mallet may work?

Can't say I've used the tool but someone may be able to say if it's worth buying?



Good luck.


Mij☺

[me]

1stly Are you sure you have removed all the nuts - heat will be ok but not excessive - the crank bearings shouldn't hold onto the crank too hard so can't see it being that.

Which Motovespa block is it ?