GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » Onan (4K) Priming / Fuel Pump Questions...
Re: Onan (4K) Priming / Fuel Pump Questions... [message #328480 is a reply to message #328478] Sun, 21 January 2018 22:08 Go to previous messageGo to previous message
Rick Staples is currently offline  Rick Staples   United States
Messages: 126
Registered: May 2014
Location: Johnstown, Colorado, USA
Karma:
Senior Member
SteveW wrote:

shouldn't the pump slow down after the carburetor bowl gets filled ?? Is seems that mine continues to pump - no changes in the sound it makes...

This is just a SWAG, but it sounds like it might be sucking air. I'd double check all the fuel lines back to the tank.
Other possibilities that come to mind include a defective fuel shut off valve or wiring thereto. (If you're still using the cut-off valve.) Or possibly leaking check valves (dirt/rust) in the pump. Just some places to start....
HTH
Rick Staples


Rick Staples, '75 Eleganza, Johnstown, CO "Advice is a dangerous gift, even from the Wise to the Wise, and all paths may run ill." -Tolkien
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: How Do I..??
Next Topic: [GMCnet] Ken. Came we have new windshields installed in Amana Iowa in September?
Goto Forum:
  


Current Time: Mon May 13 03:59:17 CDT 2024

Total time taken to generate the page: 0.01256 seconds