After Hutch Mod
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Yeah, with the half million mile engines still on the road around the world, it's easy to see this point of view. But you have to hear the difference that putting a fuel pump at the end of the fuel pickup makes to the sound of the engine while it's running to fully appreciate the effort that it takes to do that job.
It's a Van Gogh
Joined: Feb 2010
Posts: 7,809
Likes: 1,334
From: Elk Grove, CA
If you're dropping the tank I'd put in new diesel rated hose from tank to pump. With fuel injection clamps.
Your OEM parts are all old rubber, I'd go new.
The fuel bowl does remove air from the fuel, but that amount of air is asking a lot.
Your OEM parts are all old rubber, I'd go new.
The fuel bowl does remove air from the fuel, but that amount of air is asking a lot.
Tuned
Joined: Oct 2020
Posts: 418
Likes: 178
From: Piedmont of N.C.
Air is the enemy of any system moving fluid, whether it be a fuel or hydraulic system. I work with both every day and have for a vast part of my life. So in my eyes, nope, not an urban legend. Try running some aerated hydraulic fluid through a variable displacement piston pump and see how long it lasts! It’s really not arguable.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Air is the enemy of any system moving fluid, whether it be a fuel or hydraulic system. I work with both every day and have for a vast part of my life. So in my eyes, nope, not an urban legend. Try running some aerated hydraulic fluid through a variable displacement piston pump and see how long it lasts! It’s really not arguable.
Lead Driver
Joined: Oct 2005
Posts: 6,129
Likes: 1,919
From: Ponca City, OK
I'll give you that likely some people take it a little far in regards to aeration, but urban legend... Nah, it is important part of the equation for a well running diesel, hell any engine, and I would guess more important on any of the crazy high injection pressure engines. You ever seen a run of the mill water pump catch a slug of air? How they can hammer and some even quit moving fluid all together. Your average pump is good for 50-100 psi take that and multiple it about 200 times and that's what could be going down in the intensifiers. Maybe I'm way off but I've seen them run while sucking air and not, and everything is a lot happier when it's just clean and green.
Lead Driver
Joined: Jun 2004
Posts: 6,325
Likes: 585
From: Amarillo, TEXAS!
I did say a little air. If air makes it as far as the intensifiers, you've got bigger fish to fry. That's really pretty unlikely since the fuel pressure regulator vents air back to the tank and air would have to make it through the water coalescer screen and the filter element AND back down to the bottom of the filter housing to even be able to get into the fuel lines to the heads.
So yeah, I'll stand by it when I say urban legend.
So yeah, I'll stand by it when I say urban legend.
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