How do I get the Crankshaft & Conrod Assy out of the Bottom Engine Case?


7 replies to this topic
  • Laserau77

Posted July 09, 2013 - 02:43 AM

#1

Hi Guys,

I am parting out a 1999 WR400 and are currently pulling the bottom end of the engine apart.
I got the Engine Case away from the Crankshaft on one side but on the other side it is real hard to get off.
It may be a pressure fit in to the bearing so before I destroy something I thought I should ask the experts.

Does anyone have any tricks for getting the Crankshaft out of the bottom engine case bearings?

Do I need a Press to push it out?

  • Do I Care?

Posted July 09, 2013 - 02:51 AM

#2

It is not hard to remove, just use a Pvc pipe or piece of dowel (wood) the same size as the crankshaft and lightly tap it out being careful not to damage it.

  • Do I Care?

Posted July 09, 2013 - 03:39 AM

#3

If that is not enough force, try using a brass or copper pipe, a thickish piece of hard wood dowel should do the trick though. If that fails use the correct puller.

  • Laserau77

Posted July 09, 2013 - 03:35 PM

#4

Thanks Barra, I have use a piece of dowel but its being stubborn so I think I will try a piece of brass and see how that goes.
At least I know I am on the right track now so will give it a better go this time.


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  • Do I Care?

Posted July 09, 2013 - 04:25 PM

#5

No problems,
Just don't damage the anything in the process. If it's being a prick- hold a piece of hard wood against the crankshaft whilst tapping it out with a hammer.

  • grayracer513

Posted July 09, 2013 - 05:43 PM

#6

If you're planning on having the crank replaced or at least realigned, then go ahead and hammer it out like that. If not, go at least rent a simple crow's foot or cross bridge universal puller and get a couple of bolts to screw into the puller holes so you won't cause more problems than you solve.

  • Laserau77

Posted July 12, 2013 - 05:44 AM

#7

I got I out

  • GHILL28

Posted July 12, 2013 - 04:15 PM

#8

If you're parting it out and the gears are in good shape, I'll probably take them. PM me!




 
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