There's been a little bit of talk on this lately and I'd like to make a thread for future use. Not sure if some has or hasn't made one with banjo bolts on our trucks but I'll make one and yall can just delete it if it's already a thread.

To start, a "Banjo Bolt" is a bolt that is threaded at the outside end of the shaft, with a gasket, or oring at the base/head, with a hollow shaft and holes on the outside of the shafts at the top that allow fluid to flow through them, while sealing themselves off. They also have a driveable head the stock smaller ones are a recessed 1/4" drive square holes, that can be removed with a 1/4" drive ratchet. The aftermarket ones tend to have a hex head of different sizes, so u can attach to them and screw them in and out of place. The larger stock one can be removed with a 32mm socket, or a Cresent Wrench.

The more common "Banjo Bolt" people refer to on our trucks, is the Large one on the back of the lift pump that manifolds the fuel lines to the back of the heads.This one screws into the back of the lift pump. It also has a collar that goes over the shaft, and two carbon fiber gaskets. One goes in between the collar and the lift pump and one goes in between the bolt head and the collar to seal in the fluid.















The second type and less common of "Banjo Bolts" on our trucks are the ones located on both the driver and passenger side front and rear of the fuel rails. Right above the freeze plugs. There are 4 total. They normally don't get mentioned because they rarely wear out/get plugged/leak. There are upgraded high flow versions for our trucks but are rarely needed. The only need for higher flow ones are in MUCH larger injector applications, where much more fuel is necessary.











Pic of them side by side for comparison. There's only 2 of the 4 small ones pictured but all 4 are the same size as the two shown.

 

Awesome write up! Thanks

 

Thanks man. Yall have given me so much help in the past year I'm just trying to contribute what I can back.

 

Repped ya. Nice write up man.

 

Great info. I tried to rep you but it says I have to spread the love some first...

 

So that's where those go.
So the fittings where we hook the fuel line's is just a passageway to the banjo bolt, then into the fuel galley?
Do I have that right?

 

Depending on the kit you have, yes I belive so. Im still a little fuzzy on the specifics of the routing of the internal fueling systems. But I do know your plugging those fittings into the very inlet and outlet of the internal fuelling system. With the ones at the very front of the truck being the inlets and the rears being the outlets.