In my 1966 Cherokee 140, when I turn off the electric fuel pump, the fuel pressure as measured by the gage drops to zero for a few seconds, then rises back to 5 psi. I have seen this a couple times in the air during cruise and I was able to reproduce it on the ground during a run-up. The engine never hesitates and continues to run just fine on the mechanical pump. I am fairly new to the plane and never noticed this before, probably because I had other things on my mind and wasn't looking at the fuel pressure gage. Is this normal?
-
Become a Subscribing Member today!
PiperForum.com is a vibrant community of Piper owners and pilots with over 1,500+ active members.
Access to PiperForum.com is subscription based. Subscriptions are only $49.99/year or $6.99/month to gain access to this great community and unmatched library of Piper knowledge.
Why become a Subscribing Member?
- Swap technical knowledge, plan meetups and sell planes/parts.
- We host technical knowledge of general aviation topics and specific topics on J3-Cubs, Cherokees, Comanches, Pacers and more.
- In addition to an instant community of pilots for you, PiperForum.com is a library of technical topics, airplane builds, images, technical manuals, technical documents and more.
Become a Subscribing Member and access PiperForum.com in full!
Momentary fuel pressure drop?
- Thread starter Meat
- Start date
cherokee34w
Member
- Joined
- Mar 8, 2011
- Messages
- 11
- Reaction score
- 0
- Joined
- Nov 5, 2015
- Messages
- 1,602
- Reaction score
- 434
- Joined
- Nov 5, 2015
- Messages
- 1,602
- Reaction score
- 434
- Joined
- Nov 5, 2015
- Messages
- 1,602
- Reaction score
- 434
