Can someone tell me what this steel wire mesh high pressure hose from the motor block going to the lower injection pump does? My is leaking oil, I took it off and I will get a new in sometime tommorrow. Anybody know a part # ??

Thanks

 

I think you are referring to the oil line that lubricates the vacuum pump and power steering pump shaft.

Are you sure it is the hose? The seals tend to go bad. About 4 hours time and $3.84 in parts and you will be as good, maybe even better, as new. If this is your problem be sure to get the viton o-rings in lieu of the buna-n. The viton holds up better under higher temperatures.

 

NO, Steel high pressure hose,(drivers side) from the motor block to bottom of the I thought the injection pump.

 

Do you see it here?



Fuel System Components - 24-valve Cummins Turbo Diesel engine.
1. Fuel Transfer (Lift) Pump
2. Fuel Return Line (to Fuel Tank)
3. Fuel Supply Line (Low Pressure, to Engine)
4. Fuel Heater
5. Water-in-Fuel (WIF) Sensor
6. Fuel FilterlWater Separator
7. IA T Sensor
8. Map (Boost) Sensor
9. Fuel Drain Manifold
10. CKP Sensor
11. CMP Sensor
12. Overflow Valve
13. Drain Valve
14. Fuel Pressure Test Potts
15. ECM
16. ECT Sensor
17. Fuel Injection Pump
18. Throttle Lever Bell Crank and Apps
19, High-Pressure Fuel Lines
20. Fuel Injectors
21. Fuel Heater Temperature Sensor (Thermostat)
22. Oil Pressure Sensor
23. Fuel Injector Connector
24. Drain Tube
25. Intake Manifold Air Heater/Elements

 

If you lay on your back and look up right behind the fan on the drivers side you will see it. I might be able to take a picture and send it.

 

Here's the part # 3942626, this is the number on the hose..........

 

As was already stated here and the diagram posted, the oil line comes from the block oil rail and goes to the bottom of the vacuum pump. It was also said that the line generally never leaks, but the seals in the vacuum pump almost always leak.

If you want to go and buy a teflon shielded high pressure oil feed line, go ahead, but I doubt that it will fix anything.

 

OK, Here's what I seen, new oil change, I knew their was some type of oil leak. With the motor running for several minutes I seen several oil drips coming from the "shielded high pressure oil feed line" lower part to the vacuum pump. I wiped off the entire area several times. Now it looks like to me the oil is coming from the hose.
So if the seals are leaking, would it appear like this??
Thanks

 

When my seals were leaking oil beaded on that hose, actually the fitting that screws into the bottom of the Vac Pump and would drip off of there, hot 15 W 40 does weird things when it's being blown around like crazy from the fan and such.