How much oil pressure does a DT466 need?

How much oil pressure does a DT466 need?

The spec for oil pressure is 15-30 psi when running 675 to 800 rpm and high idle 45 to 65 psi.

How do you prime a DT466E engine?


  1. Disconnect the injector harness at the valve cover.
  2. Pump the hand primer to fill the fuel system until hard to depress.
  3. Crank the engine for 15 seconds.
  4. Repeat step 2.
  5. Repeat step 3.
  6. Repeat step 2.
  7. Repeat step 3.
  8. Repeat step 2.

Who makes DT466?

Navistar DT466E
Electronic injection Variants

Navistar DT466E
Dry weight 1,425 lbs dry
Predecessor DT466

Does a DT466 have a lift pump?

DT530 / DT466 Fuel Lift Pump (1994-2010) | Accurate Diesel. This fuel lift pump bolts to the high pressure oil pump or HPOP (see pictures). This lift pump (also known as a diesel transfer pump, supply pump, or feed pump) is for trucks with the HEUI (oil operated) injection system.

Is the DT466 truck getting hard to start?

I have had a small problem with it before, usually first thing in the AM. But now it doesn’t want to start no matter what time of the day it is. If its been sitting for any length of time it cranks and will finally start after about 45 seconds. There is nothing else wrong with this truck, this is the only problem it is giving me now.

What should fuel psi be on dt466e International diesel?

Usually when we get no start cold but fires and runs after using ether it might be injectors, but you need to do the fuel checks I posted and let me know. If you don’t have a fuel psi gauge, autozone loans them out. I like to have around 60psi I have seen them run ok above 45psi.

Why does my 466 pump have a hard time starting?

You probably have a leak on your high pressure oil rail. More than likely, needs a new o-ring set. The 466 uses oil to hydraulicly actuate your injectors. Once the o-rings start to leak, the high pressure pump has a hard time building pressure to actuate the injectors. Sometimes it takes 30 seconds to finally build enough pressure to start.

What should off hand rpm be on DT466?

If it cranks don’t rev it unless you have a gauge to handle about 3000psi. Off hand should take close to 600psi to start. also you can pull the valve cover and apply shop air pressure into the rail and look for air bypassing the injectors.