Hello, I've just joined this group and may be re-inventing a topic, but I have acquired a Mainship 34 ('78)* with a Perkins engine.* I'm learning my way around it.* I am changing the secondary fuel filters and note that there are 3 gaskets and 2 O rings supplied in the new filter box.* I figured out the O rings and 2 gaskets.* One gasket on the bottom bowl, one on the top of the element.* Does the 3rd go inside the housing?
Thanks in advance
You should have a CAV fuel filter on your Perkins which is used in many applications. Some older Ford tractors are one application- and as I recall- they sometimes had the bottom housing, a gasket, another housing above it, a gasket, and then the filter sat on this and the final rubber gasket which tucks into the groove in the top housing. I hope this makes some sense. So it is a spare. As you mentioned, one o ring slips over the bolt and the other fits on the bottom of the top housing.