Hey all,
I need some input on whats goin on with my truck.....
I have noticed its going through engine oil pretty fast, I have added 1 gallon in 5k. Also my ccv is smoking like crazy..... I stop at a light and take off to see a cloud of smoke from it and not the exhaust. The motor seems to be getting weaker as well but boost shoots up past 30 but it doesnt pull like it used to.

My injectors have about 30-40k on them and they were new ones with new orings.

Can my mystery oil loss be going through my turbo? causing both the power loss and oil consumption? I always think of turbo failure as it blows up and doesnt work anymore but mine still shows minimal movement in and out and some side to side. I can notice boost related noises when the motor is cold but not all the time.

I am praying its not the motor itself..... Thanks for any help you guys can throw my way

 

Oh and there are no leaks.....

 

According to Ford 1 quart per 1000 miles is normal. Its possible that your injector o-rings are bad even though they aren't very old.

 

To give you a solid idea the state your engine is in you will have to do a compression test on it. You have to pull out the glow plugs to do so. Unless you have a sticky glow plug or a glow plug that breaks, it should be a free and a easy afternoon beer drinking project.

 

Really? Hmm.. makes sense though, these engines are oil burners.

Foreman, do you see any oily residue building up anywhere?

What are boost related noises when the engine is cold? How cold is cold?

x2 on the buzz test.

 

its easier to do a crankcase pressure test first. that will tell you if you have a blowby concern, then if you do you can start pulling valve covers and glow plugs to find out which cylinder.

 

How does one do the crankcase pressure test? This is different fromt the buzz test right?

 

I've never read or heard of a cranck case pressure test.......what psi does one build the crank case to??? How does the front and main seals fair???

 

the crankcase pressure test is a typical test done on any powerstroke diesel when loss of power is a concern. it is measured in inches of water, not psi. the crankcase vent is plugged off and an adapter is screwed into the oil fill that runs to a gauge. ideal reading would be 0 but the ford acceptable limit is 6 inches of water or less.

 

not all of them are oil burners! I run 5 to 10,000 miles on oil changes and have never added oil to my engine, at 10,000 I am 1 quart low, still well in the hash marks.
p.s. 165,000 miles on truck

 

Nothing noticable with the oil residue...

Boost noise is with the windows down with it like 60 out but motor cold and starting off if kinda screeches up and down with boost. But not all the time and not when the motor is normal temp. (no in out play, just some side to side on turbo) Also i spun the shaft and got about 4-5 turns out of it spinning it pretty hard. (is that a test)

I have used delo 15-40 since new and I had the oil changed out of town and I told them delo but they put in some synthetic blend 15-40 and ever since its going through oil.

Now my not so great performance is making be think turbo. Stock at 270k. I read once oil can pass through worn bearings straight into the exhaust. That makes since with no leaks.

What causes more ccv gases? bad injector o rings?

It runs good and got 20mpg running down the highway at 70mph.

Thanks for all you help

 

This is still an issue with my truck and nothing has changed other than I no longer hear turbo noises (but it is 100* out). Oh the motor doesnt go through near as much oil anymore maybe 2-3 quarts in 5k. The ccv smoke is very noticable and Im concerned about adding more power from the adrenaline hpop and d66 to an already weak motor.

Should I run a compression test myself? Can you just buy guage at a parts store and have it work? any adapters to fit in gp hole?

Or have dealership run crankcase test?

 

Since this will only be a once or twice test(not everyday as a mech.) i would check out northern tool. THey have a diesel compresion tester for 20 or 30 bucks, includes all the fittings for the 6.9, IDI and 7.3 PS I believe.

 

Is the ccv mod blowing smoke because its blowing oil by the rings?

 

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