diesel fuel pump

[andyindy]

I have a yannmar powered 1 1/2'' fuel pump that leaks the fuel its pumping. It has a mechanical seal, the faces are good, not chipped or worn. However the spring that applies pressure to the halves is cocked. Is this normal? When assembled the faces do flatten against each other. Its a Scott pump. Ive looked on the net trying to find seals for it, but didnt find any thing. Any know of a source for seals and O rings for this pump? Thanks, Andy.

 

[uniquify]

Does it have a data plate? The model number, TM or NSN would make it easier to search.

 

[Guyfang]

A few pictures might also help.