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Darrell Morgan
Oct 17, 2019

Boost Pump Prefilter Connection

in S-21 TECH QUESTIONS

Can not connect the boost pump prefilter with fittings provided.

The figure page refers to the pump documentation. Did not receive any. Went to the pump manufacturer ‘s web site. No help.

Appears to be a missing fitting.



5 comments
0
0
Darrell Morgan
Oct 17, 2019

Or something else missing..

On a flat surface filter and pump not in-line. Looks like spacers are required under the pump.


0
Darrell Morgan
Oct 18, 2019

Figured it out.

The two blue fittings on the pump are not AN816. No ”AN” marking. AN816 fittings are pipe thread not straight thread.

Remove the AN look alike from the pump. Carefully transfer the “O” ring to the blue fitting on the prefilter. (No idea what the “DT” marking on the blue fitting means). Then everything fits well. All matching straight threads.

I’ll trim the mounting plate so everything lines up.

😎



0
Tony D.
Jan 28, 2020

A little late, but here is a link to assist with any future needs.

https://www.flyefii.com/products/boost-pump/installation-tips/

0
Darrell Morgan
Jan 29, 2020

Thanks Tony,

The more I thought about it I decided to go with a serviceable filter and not have to de-fuel the S-21 just to change the fuel filter.

Added a shut off valve from Russel and a filter from Sumit Racing.



0
Tony D.
Jan 29, 2020

Looks great Darrell!

5 comments

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