oil pressure question revised

Reply Subscribe

Thread Tools

Search this Thread

Nov 9, 2004 | 10:09 PM

gbickford

Thread Starter

Freshman User

Joined: Jun 2003

Posts: 29

Likes: 0

oil pressure question revised

lets say for instance you drain the entire engine of oil, hpop empty, resevoir empty etc. You fill the engine back up with oil. My question is will the engine start if oil is not being pumped to the motor, say for instance the pickup tube isn't sealed.

Nov 9, 2004 | 10:15 PM

realhp

Senior User

Joined: Dec 2003

Posts: 266

Likes: 0

From: Albuquerque NM

No it should not start because your low volume oil pump feeds your HPOP and if the HPOP resevoir is empty the injectors will not inject fuel into the cylinders.

Nov 9, 2004 | 10:39 PM

gbickford

Thread Starter

Freshman User

Joined: Jun 2003

Posts: 29

Likes: 0

thanks as i am reading the posts i am getting better understanding of diesels. Thats good news though because the engine started.I was the 6th person to work on this truck at my school. i have another quick question. can the hpop cannot build pressure if the oil pressure sensor is removed while trying to start it?

Nov 9, 2004 | 10:49 PM

Kwikkordead

Fleet Owner

Joined: Jun 2004

Posts: 25,090

Likes: 1,112

From: Rio Rico, AZ.

Quote:

Originally Posted by gbickford

Stop and think about what you are working with here. The HPOP is pumping oil and will continue to pump oil as long as it has a good supply. (Full reservoir) If the pressure sensor is removed from the head the oil will travel through the lines and out the hole. Lot's of oil flowing but no pressure. You must stop every leak to build pressure. (Put the pressure sensore back in it's hole.)
Trying to help you to understand hydraulic principles here.