Hpop is dry!
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Fleet Mechanic
Joined: Sep 2011
Posts: 1,613
Likes: 106
From: Albuquerque
Hpop is dry!
After sitting all night , i checked the Hpop reservior , no oil in it, guess this is why i takes so long to crank, it has gotten worse over the last week , so i better get to rebuilding the hpop and ipr! Was hoping it would hold off till i had time LOL
Tuned
Joined: Apr 2004
Posts: 428
Likes: 72
From: Aroostook County, Maine
I dealt with this problem for awhile. The work around is pretty easy - pour some oil into the rez and it should start and go. Problem is that you could overfill your pan if you do this too many times without draining some. I think my problem was a tired LPOP that couldn't refill a drained rez. But it would keep enough oil flowing so that it ran ok once I got it started. Replaced LPOP (and HPOP) and haven't had to refill since. Changing the HPOP wasn't a measure to solve the reservoir problem. At the end of the day, the new low pressure pump can stay ahead of the draining reservoir better than the old one. I didn't do anything to address the draining - unless somehow the HPOP plays a role, which I don't think it does.
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Fleet Mechanic
Joined: Sep 2011
Posts: 1,613
Likes: 106
From: Albuquerque
I dealt with this problem for awhile. The work around is pretty easy - pour some oil into the rez and it should start and go. Problem is that you could overfill your pan if you do this too many times without draining some. I think my problem was a tired LPOP that couldn't refill a drained rez. But it would keep enough oil flowing so that it ran ok once I got it started. Replaced LPOP (and HPOP) and haven't had to refill since. Changing the HPOP wasn't a measure to solve the reservoir problem. At the end of the day, the new low pressure pump can stay ahead of the draining reservoir better than the old one. I didn't do anything to address the draining - unless somehow the HPOP plays a role, which I don't think it does.
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Hotshot
Joined: Mar 2014
Posts: 10,750
Likes: 1,065
From: Douglassville, PA
I don't know if the IPR would do that or not but there is a check ball in the top of the block right behind the HPOP reservoir that's held in with a 3/8" plug. That will let your oil drain out of the HPOP reservoir if it's not working right. It's rare but it could happen.
Lead Driver
Joined: Sep 2010
Posts: 7,793
Likes: 50
I don't know if the IPR would do that or not but there is a check ball in the top of the block right behind the HPOP reservoir that's held in with a 3/8" plug. That will let your oil drain out of the HPOP reservoir if it's not working right. It's rare but it could happen.
Thread Starter
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Fleet Mechanic
Joined: Sep 2011
Posts: 1,613
Likes: 106
From: Albuquerque
I don't know if the IPR would do that or not but there is a check ball in the top of the block right behind the HPOP reservoir that's held in with a 3/8" plug. That will let your oil drain out of the HPOP reservoir if it's not working right. It's rare but it could happen.
OK you got my attention, i am planning rebuilding the hpop anyhow, Just need some time ! working for a living takes up all my free time!
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John7894
1999 - 2003 7.3L Power Stroke Diesel
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Jan 3, 2010 07:56 PM
