pressurizing fuel system

Reply Subscribe

Thread Tools

Search this Thread

Jan 26, 2012 | 04:18 PM

srqdiesel chef

Thread Starter

Senior User

Joined: Jan 2009

Posts: 426

Likes: 0

From: Southwest Florida Coast

pressurizing fuel system

probably a pretty cockamamie idea, but if I have an air leak I can't find, can I hook the schrader valve up to my compressor and pressurize the whole system and then try to find the leak with the old soapy water trick?

Jan 26, 2012 | 04:46 PM

turtlemann14

Elder User

Joined: Aug 2007

Posts: 589

Likes: 2

From: Nutter Fort,West Virginia

WAY TO MUCH PRESSURE. now that we've got that out of the way, i would put no more than 5-15 psi though the system

it's more than likely in the fuel returns caps or the pick up tube

Jan 26, 2012 | 05:17 PM

tjc transport

i ain't rite

Joined: Mar 2005

Posts: 65,448

Likes: 5,518

From: Marlboro Mental Hospital.

agreed. since the fuel pump pressure is only 7 lbs, i would not pressurize over 5 lbs.

Jan 27, 2012 | 08:39 AM

srqdiesel chef

Thread Starter

Senior User

Joined: Jan 2009

Posts: 426

Likes: 0

From: Southwest Florida Coast

told you it was a goofy idea, I don't have a leak...right now, but that just popped into one of the empty spaces between my ears

Jan 27, 2012 | 10:02 AM

tjc transport

i ain't rite

Joined: Mar 2005

Posts: 65,448

Likes: 5,518

From: Marlboro Mental Hospital.

ain't that goofy of an idear.
i have often thought of pressurizing the tank to help the fuel pump when my trucks suffer from air infiltration.

but they never do it near an air source.

Jan 27, 2012 | 12:25 PM

artfd

Elder User

Joined: May 2005

Posts: 567

Likes: 1

Some have installed electric fuel pumps and removed the mechanical fuel pumps to get around this issue. The electric pumps generally will prime (or come close to priming) the system rapidly, even without cranking the engine. Turning on the ignition key will start an electric pump.