HX Crossover Mod
This mod has a lot of bang for the buck. In tank and pre pump this weekend!
In tank and pre pump this weekend!
Last edited by Izzy351; Jan 15, 2008 at 08:40 AM.
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A caution about doing the in-tank mod. I don't know if they provide a pre-filter for the pump or not, but you will end up with a bunch of crud from the tank inside your fuel pump screen. From there you will have a severe loss of top end power due to loss of fuel volume.
Since you are installing a pre-pump, this may work:
Figure out a way to get a filter installed between the pre-pump and the main fuel pump.
What I would recommend is a filter similar to this:
Bosch part number: 71 028 or 0 450 905 030

It is a Bosch fuel filter that is widely used on a lot of gasoline powered cars that run fuel pressures of around 40 psi. You'll have to mount it on the frame rail somewhere to get it before the main pump. It is a fine enough filter to stop anything that would get stuck in the pump screen, but I wouldn't run it without a pre-pump between the filter and the tank. It would cause too much draw on the main pump. These filters are always mounted downstream of the fuel pump on the cars they are designed for.
As far as the pre-pump is concerned, I don't know if it has a screen or not. If it does, it needs to be serviceable or it will quickly fill with sediment as well and create a bottleneck.
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For the record, I have my pump migrated to the end of the pickup in the fuel tank and the only filter that it has is the mushroom head screen that is on the end of the pickup itself. All it does is stop the chunks. Everything else goes right through the pump and is stopped at the main filter on the engine. So far the pump has done just fine. It doesn't make any unusual noises at all and it's been more than a year.
Sorry for the really long post, but I wanted to get you thinking about this before you start in on the job. If you don't stop the crud from entering the pump in the first place, you'll end up going back under the truck to deal with that issue within a few weeks.
.
A caution about doing the in-tank mod. I don't know if they provide a pre-filter for the pump or not, but you will end up with a bunch of crud from the tank inside your fuel pump screen. From there you will have a severe loss of top end power due to loss of fuel volume.
Since you are installing a pre-pump, this may work:
Figure out a way to get a filter installed between the pre-pump and the main fuel pump.
What I would recommend is a filter similar to this:
Bosch part number: 71 028 or 0 450 905 030

It is a Bosch fuel filter that is widely used on a lot of gasoline powered cars that run fuel pressures of around 40 psi. You'll have to mount it on the frame rail somewhere to get it before the main pump. It is a fine enough filter to stop anything that would get stuck in the pump screen, but I wouldn't run it without a pre-pump between the filter and the tank. It would cause too much draw on the main pump. These filters are always mounted downstream of the fuel pump on the cars they are designed for.
As far as the pre-pump is concerned, I don't know if it has a screen or not. If it does, it needs to be serviceable or it will quickly fill with sediment as well and create a bottleneck.
.
For the record, I have my pump migrated to the end of the pickup in the fuel tank and the only filter that it has is the mushroom head screen that is on the end of the pickup itself. All it does is stop the chunks. Everything else goes right through the pump and is stopped at the main filter on the engine. So far the pump has done just fine. It doesn't make any unusual noises at all and it's been more than a year.
Sorry for the really long post, but I wanted to get you thinking about this before you start in on the job. If you don't stop the crud from entering the pump in the first place, you'll end up going back under the truck to deal with that issue within a few weeks.
http://www.dieselinnovations.com/di....cts&product=28
The kit includes a see thru filter that mounts between the tank and pump to accomplish exactly what you were talking about. I need to pick up the tube cutter you suggested for hacking the quick connects. Other than that I think I am ready.
Any other suggestions?
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Last edited by ron's power stoke; Jan 15, 2008 at 08:42 AM.
Ford Trucks for Ford Truck Enthusiasts
http://www.dieselinnovations.com/techfiles/hx-kit.pdf
Couldn't have been any easier. One tip, put a rag in the space between the head and the turbo so when you drop the fitting while trying to thread it into the block it does not fall into the abyss. I lost one under the turbo somewhere that has yet to be found.
http://www.dieselinnovations.com/di.php?page=products&product=28
The kit includes a see thru filter that mounts between the tank and pump to accomplish exactly what you were talking about. I need to pick up the tube cutter you suggested for hacking the quick connects. Other than that I think I am ready.
Any other suggestions?
http://www.adiesel.com/baldwinfilters/BF7736.html
And looking at the Baldwin specs, it's also good for diesel apps. It definitely works and already saved my butt with some dirty fuel. My only question now is how they compare in flow rates.









