Trouble splitting Vespa vbb engine cases

[antvespa]

Hi,

Having trouble splitting the cases on my Vespa vbb engine! There seems to be a pin at the bottom of the engine just above the selector!
It can't be screwed out of hammered out and it's the only part of the casing that isn't coming apart!

The engine wasn't in a Great state to begin with a few seized parts so I'm assuming this is the same!

Any tips on what to do?

[henri]

its a locating dowel ,they can be removed but dont usually need too , lots of heat on the dowel an around the flyside bearing n clutch bearing an turn the kickstart a 1/4 turn .an cases will split ,are you sure all case bolts are undone an removed ,they often seize on the long one thru swingin arm .when you say "above" the selector ,the dowels at the lowest point of cases ,below selector . . H

[antvespa]

Hi Henri,
You right sorry I didn't have it in front me but yes the dowel just below the selector.

Ok so lots of heat and WD40!
I'm worried it's seized right in there as it looks to of been sitting for a while in dirt! All the other bolts came out easily and the rest of the engine is splitting nicely apart