Thread: Puma 2.2 burning oil!

Originally Posted by Tombie

Smells carcinogenic

The smell kinda reminds me of burned bacon....It's quite a unique sweet euphoric odor

Hmnnnnnn talking about this makes me wanna huff some of that delicious blowby!

Originally Posted by martnH

...
Mine smells pretty carcinogenic. Had I Decat my car, it would have smell like that all day every day (sorry can't resist haha)
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Originally Posted by Toxic_Avenger

Either I'm daft and in need of education, or something does not seem right. How does leaky injector seal cause excessive oil usage?

In the 2.2, the injectors have a copper seal at the tip of the injector. If this fails, then cylinder pressure on the compression stroke would leak past, and to atmosphere. As far as I can tell, the 2.2 injectors are sealed only at this point. If they did leak into the head itself, then even going as far as into the intake air galleries (unlikely as far as I can tell from the service manual), then they'd still be fighting boost pressure, and still only be dumping fuel and air...
If the injector is leaking, then yeah, surely there'd be symptoms of difficult to start or excessive fuel usage.

IMO, if there is oil usage, and present at the PCV hose, then it's coming from the crank case. And this happens from blow by. I can't understand the mechanics of what you've suggested, but I'm keen to know more.

Your probably just in need of educating,the injector body is sealed at the top by the rocker cover,so if compression is passing the injector sealing ring ever so slightly,what happens is compression entering rocker cover and bingo pressure same as blow by so pushes a lot more oil and fumes through the breather system and into the turbo which contributes to oil usage.have done 2x 2.4,1x2.2 and numerous other brand vehicles,it doesn’t make it hard to start or down on power just uses oil,oils up intake system and if you remove the oil cap you would swear it had excessive blow by

That makes sense for the TD5 where the injector is within the rocker cover, but TDCi is external to this compartment. But thanks for the explanation, I'd not even thought of that as a possible cause.

Originally Posted by Toxic_Avenger

That makes sense for the TD5 where the injector is within the rocker cover, but TDCi is external to this compartment. But thanks for the explanation, I'd not even thought of that as a possible cause.

here are the photos so you can see the injector body is sealed into the rocker cover,only the top of the injector is out
IMG_0899.JPGIMG_0900.JPGIMG_0898.jpg

Originally Posted by martnH

Run the engine up the temperature,

Open the oil filling cap
And pinch the Pvc hose. That the one OP was talking from engine catch can to right before air Box. So that all blow by is coming from the cap

Smell it

Mine smells pretty carcinogenic. Had I Decat my car, it would have smell like that all day every day (sorry can't resist haha)


One thing I can contribute is that I installed a catch can so I can measure blow by. When dealer serviced my car, they used some Castro a2 (I think) and that oil is not for a truck equipped with DPF.
When I did the service, I use Castro OE-X that is the engine oil for diesel truck with DPF. I know the 2.2 didn't have DPF But for whatever reason Castro inform me I need OE-X)

And I discovered using the engine oil desgined for truck with DPF in my case will lead to more blowby. But not anywhere near what OP described as burning close to 1 Lt of oil per 100 kms....thats some expensice oil consumption...

So maybe this is wrong, but can I again ask if you are absolutely sure the right oil (non DPF) was used at the last service? Be good to absolutely rule that out.

Originally Posted by DiscoMick

So maybe this is wrong, but can I again ask if you are absolutely sure the right oil (non DPF) was used at the last service? Be good to absolutely rule that out.

oil I used meet the requirement (the Ford requirement stamped on the 20 Lt drum). I am 100% sure about that.

If the dealer used the oil as stated on the invoice, then it also meet the requirements...

It's just the engine oil I used is of higher requirement. However it contributes to more blow by...

Valve stem seals floating?

Had this happen on a Tdi, three were floating with the stem, they had popped off the guides.

Replaced the stem seals and the consumption went from 5-600ml/5,000km to pretty near unnoticeable over 10,000km.

Also Tombies suggestion, have seen this before too.
Some oils of the same viscosity and specs just don't seem compatible with certain bore finishes/ring designs.
I'm still not sure why, but suspect that if we knew what their NOACK numbers were (measurement of volatility) it may tell a story.