| Mechanical Fuel Pressure Gauges are OK in the Cockpit [message #367970] |
Sun, 12 December 2021 12:44  |
Tom Katzenberger
Messages: 399
Registered: June 2019
Location: Kingsville, MD
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Guys,
In researching my recent installation issues with the Howell EFI, I found many who warned of mechanical gauges in the driving station. I thought I would share something which may be over looked.
Any pressure gauge is acceptable in the dash. If using a mechanical gauge in the dash you must simply install an isolator just outside the cockpit. This will allow you to use all styles and sizes of pressure gauges
The isolator is simply where the fuel stops at a diaphragm and a non-flammable fluid pick up. I prefer a silicone base hydraulic fluid. On one side of the diaphragm is fuel under pressure and the other side is a nonflammable fluid which transfers the pressure through the diaphragm to the pressure gauge. Any rupture in the gauge or line within the vehicle will only yield nonflammable fluid.
Not much advise, but I thought it might be something helpful for someone who likes to monitor fuel pressure on their EFI and thinks that an electrical sender is the only option.
Take care all,
Tom K.
Tom & Oki Katzenberger,
Kingsville, Maryland,
1977 23' Birchaven, 455 C.I.D., Micro Level, Howell EBL-EFI Spark Control, Macerator, York Air Compressor, 6 Wheel Disc, Quadra Bag, Onan W/Bovee Ignition
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