I (your blog buddy Paul) second the advice not to use any sealant in the system.
Leaving the radiator cap loose is also a good idea, it won't allow pressure to build up in the system until you can get to a repair place.
There is plenty of room for the priming pump, it goes just above the filter. It isn't that big, maybe six inches high and bolts right on to a plate above the filter. It will have to be accessed from above, though.
It'll take longer to get the floor up than installing the pump, just two bolts and a new gasket. Well worth the effort to install it, makes fuel filter changes a breeze.
My MH has Michelin 255/80R22.5 size tires, a size not made by any other manufacturer. I ordered a new Michelin tire for a spare and it took 8 business days to arrive. I wrapped the unmounted tire in heavy plastic and mounted it in a bracket underneath the MH cinched up against the frame rails.
I didn't want to be stuck on the side of the road awaiting the location and pickup of a new tire, or have to settle for an overpriced odd sized tire that I'd have to replace immediately again.
My preference. Peace of mind. :c)
Of curiosity, since the generator also runs off the same fuel as the engine, what effect might BioDiesel have on the genset....???:h:h...anyone have a clue...??....Dennis
I have had problems with the biodiesel in my CAT C-7 engined motorhome and have had to change the two fuel filters on two different occasions. The Onan 8 QD generator had not had any issues with the biodiesel. Go figure...