yankee-flyer
Well Known Member
I installed the new fuel pump (P/N 893110, S/N 13/1939) in my RV-12 S/N 120241 on 5 Nov. 2013, Tach time 209.9, to comply with Rotax SB 912-0630L. Tach time is now 268.7. Everything has been fine until this morning when I got a low fuel pressure warning on takeoff (17 gallons of fuel on board). Post landing check showed that the electric pump was running and providing 3.1 psi with engine off. With engine running at 2500 rpm pressure was in mid-4 range. Advancing throttle to WOT dropped pressure back to low 3 values, returning to 2500 brought pressure up. I have consistently been seeing fuel pressure 4.5-4.9 range since installing the new pump.
This no evidence of leakage, no fuel stains, no drips, no fuel at pump drain, and no fuel on carb drip trays. Indications seem to me that the new mechanical pump is failing.
Open for suggestions-- if problem re-occurs I'll check wiring to sensor but that has not been a problem before.
Thanks
Wayne 120241 N143WM
This no evidence of leakage, no fuel stains, no drips, no fuel at pump drain, and no fuel on carb drip trays. Indications seem to me that the new mechanical pump is failing.
Open for suggestions-- if problem re-occurs I'll check wiring to sensor but that has not been a problem before.
Thanks
Wayne 120241 N143WM