On 3/26/2020 10:35 AM, Samuel Spanovich via KRnet wrote:
The downside to the RevFlow, however, is that it is designed for gravity fed
systems only, does not contain a bowl/float and thus, does not perform well
when hooked up to a fuel pump.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
I run electric fuel pumps only (2) on my 0-200, no gravity feed, no
engine driven pump. I was concerned that the pressure reads I was
getting on my low pressure pumps would overpower the float on the Marvel
Schebler carb so I installed the adjustable fuel pressure regulator
between the pumps and the carb. 700+ hours and no problems.
https://www.oreillyauto.com/detail/b/mr--gasket-4367/performance-16477/engine-16841/fuel-system-16571/fuel-pressure-regulators-17798/37354b4805ef/mr-gasket-fuel-pressure-regulator/9710/4514726?q=adjustable+fuel+pressure+regulator&pos=1
( Adjusts from 1 to 6 pounds)
A friend had the same regulator on his Harley Davidson engine (Zenith
601) and it developed an internal problem that appeared to be a problem
of manufacturing. The problem showed up almost from first run. I
opened up my regulator and that part was fine.
I have never tested using this regulator in a combo gravity / pump
system so do some test before flight if you install one.
Larry Flesner
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