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EuropaOwners N914XL - Bob Borger, N.Texas, USA: 99.0 hrs - Subsequent Flights Album has been updated as of 2016 05 16. Mods and other hardware things. Billet Mechanical Fuel Pump
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Mods and other hardware things.

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Keywords: Mechanical Fuel Pump

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Billet Mechanical Fuel Pump

Good idea that didn't work. Replacing one of the electric fuel pumps with a mechanical fuel pump to eliminate electrical dependence for the Rotax 914 has not worked. The regulator developed a leak after 25 hrs but was repairable. At 50t he pump developed a leak around the drive. Leaked fuel into the crankcase. The sellers/developers are non-responsive.

Date: 03/15/2010
Owner: rlborger
Size: 25 items
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IMG_7430post

IMG_7430post

This is the way the new fuel pump and fuel pressure regulator arrived.

Date: 03/15/2010
Views: 6022
IMG_7431post

IMG_7431post

The new fuel pump on the right and fuel pressure regulator on the left.

Date: 03/15/2010
Views: 4382
IMG_7432post

IMG_7432post

The fuel pump is supposed to be capable of 100 GPH @ 50 PSI. The fuel pressure regulator will drop that to 10 PSI for the existing Rotax fuel pressure regulator.

Date: 03/15/2010
Views: 5045
IMG_1086ann

IMG_1086ann

Back in early April I attempted to bolt the new Billet Pump onto the gearbox. Problem #1 - It didn't fit the boss on the gearbox. It hit a raised area at the edge of the boss.

Date: 04/03/2010
Views: 5041
IMG_1087ann

IMG_1087ann

Then problem #2 - bolts that held the cover plate in place wouldn't fit into the space provided on the pump.

Date: 04/03/2010
Views: 4859
IMG_1093ann

IMG_1093ann

Finally, problem #3 - 3/8" hose barb input and 1/4" hose barb output. There is an issue locating a 1/4" hose barb banjo to attach to the Rotax fuel pressure regulator.

Date: 04/03/2010
Views: 5020
IMG_7532ann

IMG_7532ann

A phone call to Dan at CorbiAir resolved the first two problems. The pump is designed to REPLACE an existing pump which would have a 950 226 or 950 227 spacer/gasket in place. This would hold the pump off that edge. And if there were a pump in place, t

Date: 04/18/2010
Views: 5244
IMG_7560Ann

IMG_7560Ann

Dan at Billet sent a couple AN-6 adaptors to replace the hose barbs.

Date: 04/30/2010
Views: 4644
IMG_7558post

IMG_7558post

I located a couple AN-6 adaptors to replace the hose barbs on the regulator. The adaptors are from Earl's (anplumbing.com), part #AT985006ERL for the black one and 995006ERL for the blue one. They are called AN "O" Ring Port Adaptors, AN-6 to

Date: 04/30/2010
Views: 5164
IMG_7559ann

IMG_7559ann

This is the Billet regulator with the two new adaptors. When I return from India, I shall get back to work on both the brake modifications and the installation of the Billet pump and regulator.

Date: 04/30/2010
Views: 5171
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