Mikuni super bn 44 square body carb fuel pump question

robcarync

Petty Officer 3rd Class
Joined
Aug 19, 2010
Messages
82
So I have rebuilt my carb and i was still having trouble so I rebuilt my rebuild to double check my work. I ran into an interesting question: o-rings

I took apart the fuel pump side and noticed something odd. The 44 SBN does not have the two o rings listed in the parts diagram (see attached photos). The o rings are listed for the 36 round body carb....but the square body still has a recessed trench for where an o ring would sit.

So the question is for the 2 rubber rings...do I need them or are the gaskets designed to replace the rings? If they aren't for the square body, why does it still have the recessed trench for them?

Also note that the o rings are cut...they did not fit quite right so I had to trim them and hope the compression of the fuel block and gaskets completed the seal. I have since rebuilt the fuel pump as per the diagram and completely removed the o rings.



http://db.tt/z3devNQ
http://db.tt/YS5Rwo2
http://db.tt/cVi8qa1
http://db.tt/paa47rZ
http://db.tt/Tjv3rfi
 
Top