If you want to make a bypass pressure tester, the idea is a pressure gauge hooked up to the test port with the gauge on a Tee fitting, on the output side of the Tee you have a valve with a .047" orifice restrictor, from the valve you run clear hose back to the fuel tank. Engine at idle, open the valve, fuel flows past the gauge, through the restrictor to the tank, you can look for air bubbles, and the pressure must stay above 50 psi. The bypass simulates the amount of fuel used by the engine at full power.
VintageRacer wrote: Just to finally put this to bed, the truck is now finished and is being road tested. I told them to use it for their parts runner for a few days, put some miles on, the boss has a big horse trailer so tow somewhere with it... I'll be back out there in a week or so to pick it up.
Main problem was low fuel pressure under load killing the injectors. Truck got 8 new injectors, fuel pump and the upgrade pressure spring. Pressure went from 42 psi to 65 psi with the full load bypass test. Dealer is picking up the tab, and I will be buying Fords from him for a long time, I think...
Dumping it for a gas SD, then? Good call!
John and Elizabeth (Liz), with 3 nutty cats
My beloved St. Bernard, Marm, lost him 1/2/12
Current rig:
1992 International Genesis school bus conversion
VintageRacer wrote: If you want to make a bypass pressure tester, the idea is a pressure gauge hooked up to the test port with the gauge on a Tee fitting, on the output side of the Tee you have a valve with a .047" orifice restrictor, from the valve you run clear hose back to the fuel tank. Engine at idle, open the valve, fuel flows past the gauge, through the restrictor to the tank, you can look for air bubbles, and the pressure must stay above 50 psi. The bypass simulates the amount of fuel used by the engine at full power.
Brian
Would you mind posting some drawings.
This need to go in my files as a very good reliability mod.
Do have a chat with your Ford contact about the use of software to monitor fuel pressure.
VintageRacer wrote: Just to finally put this to bed, the truck is now finished and is being road tested. I told them to use it for their parts runner for a few days, put some miles on, the boss has a big horse trailer so tow somewhere with it... I'll be back out there in a week or so to pick it up.
Main problem was low fuel pressure under load killing the injectors. Truck got 8 new injectors, fuel pump and the upgrade pressure spring. Pressure went from 42 psi to 65 psi with the full load bypass test. Dealer is picking up the tab, and I will be buying Fords from him for a long time, I think...
Noticed they replaced the fuel pump.
There is an upgraded part (the water drain plug).
Also --- ask if the replacement has a fuel heater or it is just disconnected.
The fuel heater was eventually (2006?) discontinued.
Quote: They just can't understand when people can get 500hp reliably (over 100,000 miles) out of this engine, when properly modded.
Or when unmodded, it works fine as long as certain things are done right.
I guess the real question is why put lipstick on a pig?
500 hp reliably is asking a lot for a 6.0h PoSD. They are doing really good to get 100,000 miles reliably at 300 hp.
Oh, and you need to give us some documentation to back up that claim.
And 500 hp is nothing to be bragging about unless you like sucking hind tit. Just compare it to what the Duramax and Cummins do, reliably.
I guess you think if you just keep repeating this 6.0h is so good BS you will finally convince us that know better that we are wrong. NOT. That only works on ford blue bleeders.
They just can't understand when people can get 500hp reliably (over 100,000 miles) out of this engine, when properly modded.
Or when unmodded, it works fine as long as certain things are done right.
What a snake oil salesman you are.
The Ford 6.0 is easily the worst diesel engine sold in a pickup in America in the last 20 years.
How many posts from Ford own web posts admit that the engine is badly flawed. Record setting warranty costs - low trade in values - ruined vacations - the list just goes on and on documented on this forum and many others.
But wait - not to long ago you adviced us to not but any diesel (Ford) model after 2003 - you forgot your own advice - then smuggly try and tell us you have the secret to trans form this pig into a prince.
They just can't understand when people can get 500hp reliably (over 100,000 miles) out of this engine, when properly modded.
Or when unmodded, it works fine as long as certain things are done right.
What a snake oil salesman you are.
The Ford 6.0 is easily the worst diesel engine sold in a pickup in America in the last 20 years.
How many posts from Ford own web posts admit that the engine is badly flawed. Record setting warranty costs - low trade in values - ruined vacations - the list just goes on and on documented on this forum and many others.
But wait - not to long ago you adviced us to not but any diesel (Ford) model after 2003 - you forgot your own advice - then smuggly try and tell us you have the secret to trans form this pig into a prince.
You are inconsistant and misleading.
Well in NewW's defense he does say:
NewsW wrote: Posts are for entertainment purposes and may not be constituted as scientific, technical, engineering, or practical advice.
This is pretty much on the money!
~ Too many freaks & not enough circuses ~
"Life is not tried ~ it is merely survived ~ if you're standing
outside the fire"
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