oil in high pressure oil pump - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 17 (permalink) Old 02-15-2007, 02:05 AM Thread Starter
 
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oil in high pressure oil pump

when I change the engine oil, does all the oil in the hpop drain out.
how much oil is suppose to be in the pump when you remove the plug on the top?:shrug:
How do I repair the pick up line for the hpop?

Thanks
Frank:thanks:
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post #2 of 17 (permalink) Old 02-15-2007, 02:58 AM
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when you change your oil it should stay in the high pressure oil pump. It should be within about 1/2in of the hole on the top of the resivore when its full.
what is your truck doing?

Ross
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post #3 of 17 (permalink) Old 02-15-2007, 03:46 AM
 
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I think about 20oz in the reservoir from the bottom to the bottom of the plug.
Shouldn't drain out at all when you change the oil.
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post #4 of 17 (permalink) Old 02-15-2007, 04:13 AM
 
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So are you saying its the same oil from when the truck was new, or does it cycle it into the crankcase when the engine is running?
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post #5 of 17 (permalink) Old 02-15-2007, 04:19 AM
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after it goes through the injectors it drains into the pan, and the lower oil pump feeds the high pressure oil pump, so it just keeps cycling through

Ross
Show-ME Smokers 2.6 modified street pulling truck "The Lone Stroke" My Videos
1996 f350, powerstroke, 4x4, 5-speed, 4.56 gears, Swamps 450/600 injectors, Swamps BFH turbo, Swamps Idm, Swamps tunes, BTS oil, SBC clutch, studs, springs, tubes, air to water intercooler, fuel system, factory rods!


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1997 f350, srw, reg cab, 4x4, 5 speed, 4.10 gears, 3in down pipe, straight pipe, mystery chip.

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post #6 of 17 (permalink) Old 02-15-2007, 04:30 AM
 
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Ahhhhhh, i see i see.
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post #7 of 17 (permalink) Old 02-16-2007, 12:04 AM Thread Starter
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Thanks, My truck runs rough at Idle, 300-1000 rpms.
only does it when it is up to operating temp, starts up fine, idles good when cold.

Frank
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post #8 of 17 (permalink) Old 02-16-2007, 11:19 PM
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Quote:
Originally Posted by f_stahl
Thanks, My truck runs rough at Idle, 300-1000 rpms.
only does it when it is up to operating temp, starts up fine, idles good when cold.

Frank
While many things can cause this, the MOST common is aereated oil. One way to verify this diagnosys is to run the engine under LOAD until at operating temperature. Allow it to idle for a short time (15-20 seconds), shut it off then pull the dip-stick. If there are bubbles on the dipstick, CHANGE THE OIL.

All PSD engines REQUIRE an oil with an API rating of "CI-4" or better. Sure, early engines could not use CI-4 because it did not exist, but they run LOTS better with it than with say "CG" oils.

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post #9 of 17 (permalink) Old 02-17-2007, 03:37 AM
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Quote:
Originally Posted by John_G
All PSD engines REQUIRE an oil with an API rating of "CI-4" or better. Sure, early engines could not use CI-4 because it did not exist, but they run LOTS better with it than with say "CG" oils.
Which oils fit this criteria???
For that matter, what is the best oil to use in the 7.3???

Alex C.

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post #10 of 17 (permalink) Old 02-17-2007, 03:49 AM
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Since you guys are on the subject of the Hi output pump. Me and the son just got through pulling his off tonight. Wasn't too bad. Had a leaking o ring on the little port next to the pressure adjustment. Bought the o ring kit from ford and it only came wh the 3 o rings for the hose fittings and the other larger port plug. headed ti Int tomorrow to see if they have what we need.

I assume when we get it back together we should fill the resevoir with oil before we fire it off. Thansks for any advice. New guy on the boards!!
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