2000 7.3 6speed burning oil - Ford Powerstroke Diesel Forum
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post #1 of 27 Old 08-28-2013, 12:11 PM Thread Starter
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2000 7.3 6speed burning oil

Ok, truck has a rebuilt engine in her with about 45k on engine. Has been using roughly 4 quarts of oil every 1200, to 1500 miles and smoke at idle a bluish whitish color and gets worse the longer it idles. When u take off after idling for a period of time truck will give out quit a bit of smoke till it clears up for the most part but still has a little bit all the time. I have been battling this issue for a long time and am sick and tired of it smoking all the time. Blow by seems very minimal to me no pressure and not a lot of steam. I can put a ping pong ball where oil filter cap goes and it just sits there and floats does not fly off. Oil filter cap same doesn't lift cap at all. Today I did a cold compression test. Truck has been sitting for about a week.

Driver side, front to back, 375, 375, 375, 375
Pass side , front to back, 380, 375, 370, 375

I just got done pulling all 8 of my hybrid 238% 100 injectors and. All look fine. Orings look good and in working order. All have copper washer and look good. I have check all injector bore and are clean. And no left over old copper washers. I had to such a lot of oil out of number 6 bore. All are clean now. What am I missing here. Does anyone have any ideas of why I am burning oil. Compression seems fine and blow by seems fine to me. What am I missing

I can add some pics of injectors if need to. Tired of buying oil and also oil seems very black and fuel like. Also o rings are Alliant brand.

I just took her on a 1400 mile trip to the keys of Florida and back and had to add a gallon of oil when got back home to get her back up to normal

2000 f250 crew cab 4x4 6sp manual, Jim Rosewood 238/100 hybrids, gtp 38r, srp1.1 hpop, DP-Tuner! Driven diesel fuel sys!
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post #2 of 27 Old 08-28-2013, 08:26 PM
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Just a guess but maybe getting by seal in the turbo? I have seen it happen on gassers before.
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post #3 of 27 Old 08-29-2013, 03:18 AM Thread Starter
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turbo is good and injectors are good.

2000 f250 crew cab 4x4 6sp manual, Jim Rosewood 238/100 hybrids, gtp 38r, srp1.1 hpop, DP-Tuner! Driven diesel fuel sys!
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post #4 of 27 Old 08-29-2013, 04:16 AM
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How do you know your injectors are good without sending them in for bench testing. They have internal O-rings too that can go bad and sometimes seize open on the oil intensifier and just pour it in the cylinder.

This happened to me on a new set of FullForce injector.

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post #5 of 27 Old 08-29-2013, 04:21 AM Thread Starter
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Quote:
Originally Posted by hucorey View Post
How do you know your injectors are good without sending them in for bench testing. They have internal O-rings too that can go bad and sometimes seize open on the oil intensifier and just pour it in the cylinder.

This happened to me on a new set of FullForce injector.

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Process of elimination. I have had this issue before these injectors went in. unless I have had to bad sets of injectors from the same builder then I guess I just have really good luck. Burning oil issue with the hybrids and my old stage 2's .

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post #6 of 27 Old 08-29-2013, 05:00 AM
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Then it may be your valve guides.

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post #7 of 27 Old 08-29-2013, 06:48 AM Thread Starter
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Quote:
Originally Posted by hucorey View Post
Then it may be your valve guides.

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Is there any way to test them to see if they are working correctly?

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post #8 of 27 Old 08-29-2013, 08:13 AM
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Personally I don't know how you could accurately pinpoint it. You may be able to pull the valve covers to see if you have it coming out the top of the stem too.

Gearhead2012 on here is the machinist at blackwater for the heads. He may be able to tell you.

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post #9 of 27 Old 08-29-2013, 10:23 AM Thread Starter
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10-4 This is why valve covers are still off and once Injectors go back in soon I will be running it with covers off to see if I can tell anything either. Plus I am wanting to do a warm compression test. Just sucks I take such good care of this rig and has never acted right for me.

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post #10 of 27 Old 08-29-2013, 11:13 AM
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IMO I think a warm comp test would be a waste of time. Your numbers look great.

Unfortunately we find all kinds of little things the PO did NOT do. And causes a lot of slow, down the road issues. Its frustrating to see so many vehicle owners not do their maintenance and then wonder why they have problems.

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EDGE,S&B,SCT,PHP Hydra,TS-Perf,OEM parts,Sam Wyse trans,VB's,LED's,MBRP,ISSPRO,ICON,FOX,KC TURBOs,SD 7.3 fuel kits, HPOP lines

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Last edited by Corey@CNCFAB; 08-29-2013 at 11:18 AM.
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