Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Webby the Bear on 05 July 2015, 17:44:33

Title: Fuel pump question
Post by: Webby the Bear on 05 July 2015, 17:44:33

What is it in the omega's fuel system that maintains fuel pressure after you've switched the car off?

I'm aware that some have a one-way ''check'' valve in but I think someone mentioned a while ago that the omega pump doesn't have one...so what does it have to maintain fuel pressure?

Title: Re: Fuel pump question
Post by: Webby the Bear on 06 July 2015, 17:23:21

anyone? lol

Title: Re: Fuel pump question
Post by: 05omegav6 on 07 July 2015, 07:32:41

The pump... ::)

Oh and the fuel pressure regulator ;)

Title: Re: Fuel pump question
Post by: Webby the Bear on 07 July 2015, 17:55:29

Thanks taxi.

what is it in the fuel pump that achieves that? I.e. A check valve?

And how does it achieve this with the fpr as I thought that just controlled pressure during running?

Title: Re: Fuel pump question
Post by: 05omegav6 on 08 July 2015, 16:05:56

Quote from: Webby the Bear on 07 July 2015, 17:55:29

Thanks taxi.

what is it in the fuel pump that achieves that? I.e. A check valve?

And how does it achieve this with the fpr as I thought that just controlled pressure during running?

Why overcomplicte things... pump on and fuel flows, pump off and it doesn't... ::) typically runs at 5-6 bar.

The FPR knocks it down to a consistent, useable level where it is needed, ie at the fuel rail ;)

Title: Re: Fuel pump question
Post by: Marks DTM Calib on 08 July 2015, 16:50:29

But that does not explain why fuel pressure remains after turn off  :y

To answer your question Webby, most fuel pumps have a one way check valve after the pump motor.  :y

Title: Re: Fuel pump question
Post by: Webby the Bear on 08 July 2015, 17:41:55

Quote from: Marks DTM Calib on 08 July 2015, 16:50:29

But that does not explain why fuel pressure remains after turn off  :y

To answer your question Webby, most fuel pumps have a one way check valve after the pump motor.  :y

Exactly  ::) (I'm copying Taxi with rolling eyes there  :P ;D)

Thanks Mark, much appreciated  :y