Page 1 of 1

Continental fuel pressure

Posted: Sat May 21, 2022 6:39 pm
by Djcoul
New express owner. Has a Continental 550 on it. Anyone know what my fuel pressure should be?

Re: Continental fuel pressure

Posted: Sun Aug 07, 2022 4:10 pm
by kevin
depends on the model. Look at the data plate and see what version it is- 550 B, N, or what. Search for SID97G, its a Continental service bulletin that gives the fuel pressure settings for most of their engines, if you can't find it there email me and I can pull it from the manual.

Re: Continental fuel pressure

Posted: Sun Sep 18, 2022 6:45 pm
by dondday
Who want to take a stab at it?

I too have issues with oil, fuel pressures and oil temp indication for the IO-550 N1.

Airplane is one built in 2004 as a factory builder assist system. Panel equipped with Slimline JPI instrument and seems to be having bad signals from engine to panel gauges.

Engine was started and pressures for fuel and oil seem somewhat normal.
Fuel pressure 12psi
Oil pressure 30 psi
Oil temp 130

After 15 minutes run, fuel dropped to 2 psi, oil still at 30 psi, temp up to 130 degree. Flight aborted

After work on fuel inject system, again engine started with oil pressure and fuel as before. Oil temp up to 130 degree. All seem somewhat normal. Five minutes in flight, fuel pressure began to descend ultimately to zero, but continued to respond to throttle input. Oil pressure began a gradual drop from 30 psi, oil temperature still 130 degree on a 105 degree day.

At landing, fuel pressure - zero, Oil pressure - zero, Oil temp still 130.

Fuel pressure sensor was isolated, air pressure applied, with stem gage showing 14 psi, while JPI displayed 2 psi.

Can anyone offer ideas?

Don D-Day

Re: Continental fuel pressure

Posted: Sat Oct 15, 2022 5:00 pm
by LouisCarre
Same ground on engine and jpi?