Hpop ?
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Hpop ?
O.K. I've learned a lot on here so far but have a long way to go. I was searching old threads and saw where someone posted asking if your HPOP was full? What exactly is the HPOP and where do I fill it and what with?
Playing in the Dirt
Joined: Oct 2005
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From: Southwest Georgia
HPOP (High Pressure Oil Pump) reservoir. Located in the front of the valley (under the cover) rectangular aluminum with the oil pressure sending unit screwed into the top right (passengers) side and a plug in the top left (drivers) side. To check the oil level, remove the plug and look inside.
The HPOP system is supplied with engine oil from the low pressure engine oil pump which fills the HPOP reservoir. The HPOP then pumps the oil under high pressure (around 3000 psi) through the oil passages in the heads to the injectors. This is a simple explanation, for a detail write up on the operation of the injections system look here: http://www.intellidog.com/dieselmann/injector.htm and for other things on our trucks check out the home page for Dieselman's site : http://www.intellidog.com/dieselmann/home.html
The HPOP system is supplied with engine oil from the low pressure engine oil pump which fills the HPOP reservoir. The HPOP then pumps the oil under high pressure (around 3000 psi) through the oil passages in the heads to the injectors. This is a simple explanation, for a detail write up on the operation of the injections system look here: http://www.intellidog.com/dieselmann/injector.htm and for other things on our trucks check out the home page for Dieselman's site : http://www.intellidog.com/dieselmann/home.html
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
yes on what Plowhand said and I will add that the HPOP reservior should not need to be topped off unless you have a drain down issue or have done HPOP,IPR, or injector work as well as oil galley plugs. It continuously refilled by the lube oil system during normal operation. here is a picture to show the reservior and fill plug
(click to enlarge)
(click to enlarge)
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Originally Posted by tjbeggs
yes on what Plowhand said and I will add that the HPOP reservior should not need to be topped off unless you have a drain down issue or have done HPOP,IPR, or injector work as well as oil galley plugs. It continuously refilled by the lube oil system during normal operation. here is a picture to show the reservior and fill plug
(click to enlarge)
(click to enlarge)
Posting Guru
Joined: Feb 2007
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From: Las Vegas, NV
is that engine pic a 95 or 97
I was checking out your gallery Tim and saw you have two PSD a 95 and 97, Your 95 has a cover is the HPOP resvoir the same location on the 95 and do you have to remove the cover to check the oil resvoir level
Thanks dan
Thanks dan
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From: hillsborough nj
i believe they are all exactly the same, the cover comes off with thsoe 3 rubber-coated nuts or whatever they are
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
Yes you need to remove the cover to check the HPOP. The location is the same just under the cover. The red truck is my old truck that I sold to get my black truck. I wish I had 2! One for play one for driving. Course then I would have two trucks to mod and I would never be able to fill them up with fuel!
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