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Old 02-13-2019, 09:18 PM   #1
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Default Anyone mount an Espar D2 External??

I have a fabed up box to mount my Espar D2 underneath the chasis, but I am concerned about it being below the doser fuel pump.

Anyone have any advise here?

I will connect via the K1 auxillary connection, and I know I need to mount the doser pump at ~14-30deg, but unless im running inside the cabin, there is no possible way to not have the line dip negative.

If i purge the line successfully at initial install would i have any reason to worry about air lock in the future?
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Old 02-13-2019, 09:24 PM   #2
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Default Re: Anyone mount an Espar D2 External??

What does the installation manual say about this?
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Old 02-13-2019, 09:32 PM   #3
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Default Re: Anyone mount an Espar D2 External??

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Originally Posted by OrioN View Post
What does the installation manual say about this?
Manual allows for external mounting, but its contradictory to the requirement to install fuel pump with constant rise.

At minimum an external mounted system will always be "level" with a traditional fuel tank location
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Old 02-13-2019, 10:00 PM   #4
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Default Re: Anyone mount an Espar D2 External??

The fuel after the pump is being pushed by force and will create pressure in the line. This pressure should be enough to over come gravity rise and a few low frequency peaks and valleys.
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Old 02-13-2019, 10:44 PM   #5
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Default Re: Anyone mount an Espar D2 External??

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Originally Posted by OrioN View Post
The fuel after the pump is being pushed by force and will create pressure in the line. This pressure should be enough to over come gravity rise and a few low frequency peaks and valleys.
Great thanks! So from tank to pump side (non-pressure), have a continuous rise to avoid air lock in any dips, etc...And on the pump to heater (pressure side) it should be ok (but avoid if possible?) because the pump will force any air out of the system.

I assume it may flame out during initial install but once cleared, I should have no issues

My plan right now is to put the pump above the tank direct from the K1N fitting at the prescribed angle, route over the driveshaft toward the sliding door area, and mount the heater externally there. This will require the fuel supply to dip from the "floor" of the van to the bottom of the heater. This is the negative dip below the tank that I am concerned with
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Old 02-13-2019, 11:01 PM   #6
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Default Re: Anyone mount an Espar D2 External??

Quote:
Originally Posted by GatorSprinter View Post
Great thanks! So from tank to pump side (non-pressure), have a continuous rise to avoid air lock in any dips, etc...And on the pump to heater (pressure side) it should be ok (but avoid if possible?) because the pump will force any air out of the system.

I assume it may flame out during initial install but once cleared, I should have no issues

My plan right now is to put the pump above the tank direct from the K1N fitting at the prescribed angle, route over the driveshaft toward the sliding door area, and mount the heater externally there. This will require the fuel supply to dip from the "floor" of the van to the bottom of the heater. This is the negative dip below the tank that I am concerned with
The worse case scenario may require you raise or lower the pump to resolve the lessor of the 'two evils'....
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Old 02-14-2019, 12:31 AM   #7
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Default Re: Anyone mount an Espar D2 External??

My Espar D2 is installed externally. I've had it there since I bought my van and it was 2014 . No air locks.
This winter I did have to replace screen ( I don't have high altitude kit )
Heater works

Sent from my LM-V350 using Tapatalk
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Old 02-14-2019, 01:14 AM   #8
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Default Re: Anyone mount an Espar D2 External??

Quote:
Originally Posted by 4wheels View Post
My Espar D2 is installed externally. I've had it there since I bought my van and it was 2014 . No air locks.
This winter I did have to replace screen ( I don't have high altitude kit )
Heater works

Sent from my LM-V350 using Tapatalk
Any Pics of you install 4wheels?
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