I have no idea what's going on?
About 2 months ago, upon start up, the fuel pressure reading was unusually high. Like 45 psi. As the engine warmed and I headed to the run up area, the pressure suddenly dropped to the normal value of 23. Flights have been fine. No issues. Boost pump on or off makes no difference.
Every time I start up the same thing occurs. High fuel pressure for 5 min., as things warm it suddenly drops. Yesterday it was up to 65 psi for 5 min, then the sudden drop to 23.
I've had the -7 for 5 years. Been through 5 winters, it's a Superior IO-360 fuel injected engine. 1100 hours.
It only concerns me because its somethings "different" than before.
Any ideas what to check? Is something blocked? Ice that melts? Ideas??
Thanks
Darren
About 2 months ago, upon start up, the fuel pressure reading was unusually high. Like 45 psi. As the engine warmed and I headed to the run up area, the pressure suddenly dropped to the normal value of 23. Flights have been fine. No issues. Boost pump on or off makes no difference.
Every time I start up the same thing occurs. High fuel pressure for 5 min., as things warm it suddenly drops. Yesterday it was up to 65 psi for 5 min, then the sudden drop to 23.
I've had the -7 for 5 years. Been through 5 winters, it's a Superior IO-360 fuel injected engine. 1100 hours.
It only concerns me because its somethings "different" than before.
Any ideas what to check? Is something blocked? Ice that melts? Ideas??
Thanks
Darren