Piston Replacement

[bolter15]

I've just got a hold of a 30HP Nissan with a blown top piston. No compression on that top cylindar at all.

Several questions about it... I'm wondering if I can get to the gudgion pin through the reed valve hole to remove the bad piston, or will it take a complete tear down to get at the piston?

What's a good source for parts for this motor?

 

[bolter15]

Re: Piston Replacement

There's a plate on the side of the cylinder... It's listed as the exaust plate.

Does that allow access to the pistons and pins?

 

[TOHATSU GURU]

Re: Piston Replacement

You have to take the block apart to get to either piston and parts are available from any Nissan or Tohatsu dealer.

 

[henrye718]

Re: Piston Replacement

Stuck rings? Might want to try the unseize procedure first before tearing it apart, its very cheap and easy. If you search all forums I think you can find that info here on this site.