I am new to this forum so sorry if I haven't posted correctly.

I have a new force .46 engine that I need to fit into my GV Cage 1/8 buggy but I am worried I damaged the crankshaft as it has about 3-4mm of horizontal play. My previous force .32 doesn't.

My main question is: Is this a problem??

I haven't got the collet or flywheel on yet because Im not sure how.... Haha
Tried hitting it lightly with a hammer to get it on.. YouTube wasn't Too helpful though I haven't researched much yet.