Register Login
The UK's No.1 Chrysler Owners Forum
Reply
 
Thread Tools
Old 16-07-2014   #16
Join Date: Feb 2014
Posts: 47
Thanks: 1
Trader Rating: 0
United Kingdom 
Re: GP T-Jet Oil Consumption

Quote Originally Posted by GrandeGuy View Post
If you fill your car to max on the dip stick it will burn it off. It's a bad cycle, fill it then it burns it off so fill again, and on and on,the level should be half way on the stick, also adding a oil breather catch tank does wonders, very understated mod, keeps the intake clean and stops oil vapour being drawn into the intake and being burnt which can richen the lambda so adding less fuel, clean air in, right fuel mix in more power cleaner bang

I was unaware of that.

I read somewhere that the T-Jet already has a Oil Breather built in?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

WillyMcG is offline Reply With Quote Quote 
Old 16-07-2014   #17
Join Date: Sep 2009
Location: Bucharest
Posts: 2,042
Thanks: 139
Trader Rating: 0
Romania 
Re: GP T-Jet Oil Consumption

It does have some sort of oil separator, which has a few valves/flaps that either open or close depending on weather you are on boost or just idling and weather there is enough crank case pressure (there is a membrane and a spring).

My OE oil separator was stuck opened with gunk and crap.. so it was pulling oil directly into the intake and burning it. As well as loosing a lot of boost through it because of the opened valves.

So just take it off the car, take off the cap that keeps in the membrane and spring, then clean it up really good with oven cleaner and a lot of water. Make sure you the valves are working freely and that they close when you pull air through and when you push air through.

That or just fit a new catch can!
Likes varesecrazy liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

aurick86 is offline Reply With Quote Quote 
Old 17-07-2014   #18
Join Date: Feb 2014
Posts: 47
Thanks: 1
Trader Rating: 0
United Kingdom 
Re: GP T-Jet Oil Consumption

Will try cleaning the oil separator, thanks.

Have a busy weekend ahead of me trying to fix this. Annoying thing is I cant work out if it is resolved instantly.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

WillyMcG is offline Reply With Quote Quote 
Old 17-07-2014   #19
Join Date: Sep 2009
Location: Bucharest
Posts: 2,042
Thanks: 139
Trader Rating: 0
Romania 
Re: GP T-Jet Oil Consumption

The separator is the big black plastic box-like thing next to the coils, it's attached with a few 10mm bolts ( maybe 2 bolts and one nut) and it has hoses atached ( one going to the intake manifold and the other ( bigger one) goes to the intake pipe before the turbo.
remove the bots and hoses then lift it up.
Likes WillyMcG liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

aurick86 is offline Reply With Quote Quote 
Old 17-07-2014   #20
Join Date: Feb 2014
Posts: 47
Thanks: 1
Trader Rating: 0
United Kingdom 
Re: GP T-Jet Oil Consumption

Quote Originally Posted by aurick86 View Post
The separator is the big black plastic box-like thing next to the coils, it's attached with a few 10mm bolts ( maybe 2 bolts and one nut) and it has hoses atached ( one going to the intake manifold and the other ( bigger one) goes to the intake pipe before the turbo.
remove the bots and hoses then lift it up.
Thank you Will try to work it out on Saturday, will let you know how I get on
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

WillyMcG is offline Reply With Quote Quote 
Old 19-07-2014   #21
Join Date: Feb 2014
Posts: 47
Thanks: 1
Trader Rating: 0
United Kingdom 
Re: GP T-Jet Oil Consumption

Quote Originally Posted by aurick86 View Post
The separator is the big black plastic box-like thing next to the coils, it's attached with a few 10mm bolts ( maybe 2 bolts and one nut) and it has hoses atached ( one going to the intake manifold and the other ( bigger one) goes to the intake pipe before the turbo.
remove the bots and hoses then lift it up.
Looking for the breather, I cant seem to find it.

I don't suppose it would be too much to ask to post an image of it? You mention a box, but all I can see online is people talking about the pipe (https://www.fiatforum.com/grande-pun...-2-1-4-8v.html)
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

WillyMcG is offline Reply With Quote Quote 
Old 19-07-2014   #22
Join Date: Feb 2014
Posts: 47
Thanks: 1
Trader Rating: 0
United Kingdom 
Re: GP T-Jet Oil Consumption

Ah, I think it worked out what you meant now.

In the process of taking off the cover, I discovered that the back part was COVERED in gunk and grease (The red circles in the images). So cleaned that all off.

After reading what you had described a few times, it hit me. For the oil breather, are you talking about the box highlighted in blue? For the longest time I thought you meant the engine cover. If that is the box that you meant, how do you go about taking off that cap? I'm thinking about trying to pressure it off with a flathead screwdriver over those tabs that hold it on.
Attached Thumbnails
Click image for larger version

Name:	OilConsump.jpg
Views:	355
Size:	2.39 MB
ID:	140718   Click image for larger version

Name:	OilConsump2.jpg
Views:	222
Size:	2.06 MB
ID:	140719  

__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

WillyMcG is offline Reply With Quote Quote 
Old 19-07-2014   #23
Join Date: Apr 2011
Location: Near the M4
Posts: 19,968
Thanks: 710
Trader Rating: 0
varesecrazy has donated!
United Kingdom 
Re: GP T-Jet Oil Consumption

@Sweex may well have the specific answer..

in the mean time I would carefully prise off the hose-clips leading into the box you've circled in BLUE and see what state the innards of the hoses + tail into box are in..,
that'll soon tell a tale,

Charlie
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

varesecrazy is offline Reply With Quote Quote 
Old 19-07-2014   #24
Join Date: Aug 2010
Location: Cumbria
Posts: 2,113
Thanks: 34
Trader Rating: 0
United Kingdom 
Re: GP T-Jet Oil Consumption

Nephews seat and corsa both used oil, both breathers were blocked . .
Your basically pressuring the oil scraper rings forcing the oil up instead of letting it return to the sump.
__________________
Because learning is fun
GrandeGuy is offline Reply With Quote Quote 
Old 19-07-2014   #25
T-Jet!
 
Sweex's Avatar
Join Date: Jun 2012
Location: Stroud
Posts: 2,400
Thanks: 83
Trader Rating: 0
Sweex has donated!
United Kingdom 
Re: GP T-Jet Oil Consumption

Yes, carry on as you are, you may have to break some of the clips holding it on....
Its not made to be taken off i dont think!!!
__________________
My Grande Punto T-Jet Daisy
Sweex is offline Reply With Quote Quote 
Old 19-07-2014   #26
T-Jet!
 
Sweex's Avatar
Join Date: Jun 2012
Location: Stroud
Posts: 2,400
Thanks: 83
Trader Rating: 0
Sweex has donated!
United Kingdom 
Re: GP T-Jet Oil Consumption

I however currently cant see the pictures, it sounds like your in the right place but i will confirm when i get some better internet.
__________________
My Grande Punto T-Jet Daisy
Sweex is offline Reply With Quote Quote 
Old 19-07-2014   #27
Join Date: Sep 2009
Location: Bucharest
Posts: 2,042
Thanks: 139
Trader Rating: 0
Romania 
Re: GP T-Jet Oil Consumption

Yes, the thing circled in blue is the oil separator.
On mine, all the hose clamps were easily taken off with a small flat head screwdriver.
Then remove the bolts and gently lift it up ( it has a nozzle inside the valve cover with a rubber seal on it try not to damage it)

After you've taken it off the engine work on taking the cap off ( much easier not having to bend over the engine bay); push it over the locking tabs using one or two flat head screwdrivers.

This is how you test to see if it's not working properly:
1-blow air (with your mouth...wipe first) on the nozzle that goes in to the valve cover; if it's easy to blow air through it then it's stuck open and a lot of oil will be constantly sucked into the engine. If it is to hard to blow air through or impossible then it might be stuck closed and oil will be pushed back into the cylinder past the oil rings, and the oil will be burned like that. In normal operation some pressure will accumulate until it can push a spring loaded membrane (you will see the membrane and spring when you take off the cover) and only then go into the engine.
2- Try to suck on the nozzle that goes to the intake manifold. You should not be able to suck much air because there is a flap/valve that should close when you do that ( if you can suck air in through there then that is a definite vacuum leak). Also try to blow air through that nozzle. you should not be ale to do that because another flap should block air going in that direction ( if you can blow air that way then you have a boost leak => loss in performance)
3- Blow through the nozzle that goes to the pipe before the turbo.
You should not be able to do so ( another valve). Suck through it, you should not be able to do so.

If you can suck/ blow air when i said you shouldn't that only means that the valves/flaps are stuck opened. You can clean them loose ( i did with oven cleaner and a lot of hot water)
To clean it take off the cap and thoroughly clean the membrane and spring as well as the holes/passages you will see.
Psut generous amounts of cleaner in all the hoes.. let it soak..scrub(when possible).. rinse.. repeat.

With the cap and membrane+spring taken off you should be able to :
-blow and suck air through nozzle to the valve cover
-suck air through the nozzle to the intake manifold. Not be able to blow.
-suck air through the nozzle to the pipe before the turbo. Not be able to blow.
Thanks WillyMcG, varesecrazy thanked for this post
Likes Matthewr1990, WillyMcG liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by aurick86; 19-07-2014 at 21:32.
aurick86 is offline Reply With Quote Quote 
Old 19-07-2014   #28
Join Date: Feb 2014
Posts: 47
Thanks: 1
Trader Rating: 0
United Kingdom 
Re: GP T-Jet Oil Consumption

Thank you for all the advice, will work on it again tomorrow first thing

Will update you on the results.

Thanks,
Will
Likes varesecrazy liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

WillyMcG is offline Reply With Quote Quote 
Old 20-07-2014   #29
Join Date: Feb 2014
Posts: 47
Thanks: 1
Trader Rating: 0
United Kingdom 
Re: GP T-Jet Oil Consumption

Quote Originally Posted by aurick86 View Post
Yes, the thing circled in blue is the oil separator.
On mine, all the hose clamps were easily taken off with a small flat head screwdriver.
Then remove the bolts and gently lift it up ( it has a nozzle inside the valve cover with a rubber seal on it try not to damage it)

After you've taken it off the engine work on taking the cap off ( much easier not having to bend over the engine bay); push it over the locking tabs using one or two flat head screwdrivers.

This is how you test to see if it's not working properly:
1-blow air (with your mouth...wipe first) on the nozzle that goes in to the valve cover; if it's easy to blow air through it then it's stuck open and a lot of oil will be constantly sucked into the engine. If it is to hard to blow air through or impossible then it might be stuck closed and oil will be pushed back into the cylinder past the oil rings, and the oil will be burned like that. In normal operation some pressure will accumulate until it can push a spring loaded membrane (you will see the membrane and spring when you take off the cover) and only then go into the engine.
2- Try to suck on the nozzle that goes to the intake manifold. You should not be able to suck much air because there is a flap/valve that should close when you do that ( if you can suck air in through there then that is a definite vacuum leak). Also try to blow air through that nozzle. you should not be ale to do that because another flap should block air going in that direction ( if you can blow air that way then you have a boost leak => loss in performance)
3- Blow through the nozzle that goes to the pipe before the turbo.
You should not be able to do so ( another valve). Suck through it, you should not be able to do so.

If you can suck/ blow air when i said you shouldn't that only means that the valves/flaps are stuck opened. You can clean them loose ( i did with oven cleaner and a lot of hot water)
To clean it take off the cap and thoroughly clean the membrane and spring as well as the holes/passages you will see.
Psut generous amounts of cleaner in all the hoes.. let it soak..scrub(when possible).. rinse.. repeat.

With the cap and membrane+spring taken off you should be able to :
-blow and suck air through nozzle to the valve cover
-suck air through the nozzle to the intake manifold. Not be able to blow.
-suck air through the nozzle to the pipe before the turbo. Not be able to blow.
My god, that cap was a bastard to get off.

After taking it off the engine I took the cap off and tried the tests, it failed on most. I've given it a good clean with hot water and engine de-greaser, with loads of chunks/specs of black sludge coming out. It got to a point where not much more was coming out and I stopped.

With the cap off, and clean,
- I could blow and suck through the valve cover nozzle.
- Suck through the intake nozzle, not blow,
- And suck through the turbo pipe, not blow. So passing what you mentioned at the bottom.

With the cap back on, I tried the original blow/suck tests again.
- It is still very easy to blow air through the valve cover nozzle, coming out of both the turbo and intake pipe nozzles.
- I was able to suck large amounts through the intake manifold nozzle, but not blow. I couldn't suck much at all with the valve cover nozzle blocked with my finger, and none at all with both the valve and turbo blocked.
- I am also able to suck through the turbo pipe, but not blow. Again, I couldn't suck much at all with the valve cover nozzle blocked with my finger, and none at all with both the valve and turbo blocked.

When shaking the box around, I can hear a rattle from inside. Is this normal?

I'm going to put it back in now as there is no more cleaning that can be done. Could this mean that the part is broken?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by WillyMcG; 20-07-2014 at 16:08.
WillyMcG is offline Reply With Quote Quote 
Old 20-07-2014   #30
Join Date: Sep 2009
Location: Bucharest
Posts: 2,042
Thanks: 139
Trader Rating: 0
Romania 
Re: GP T-Jet Oil Consumption

Ok seems fairly good.
What is the condition of the diaphragm?
did you clean it, as well as it's mating surface,
did you make sure to put the spring back together exactly where it came from ( i.e between the cap and the diaphragm ) and in the same direction?


TBH, i don't think it really hurts if the diaphragm doesn't seat properly and seal tat passage. oil gasses will just not build up as much pressure.

As to the noise:
I think that's just some more grime/ crap or you just heard one of the flaps closing.
From your tests, i say that the only two moving parts are still working properly.

Only problem would be if it's a piece of crap it might get logged inside one of the flaps/valves and this way cause mote trouble in the future, or worse .. get sucked into the turbo, or the engine.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

aurick86 is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
(T) Oil consumption after full oil/filter change fivegoldstars Punto (Mk1) 10 11-02-2015 21:22
(T) Bravo 1.4 T-Jet 120 HP - Fuel Consumption Botto Bravo 4 18-07-2012 17:54
(T) 1.9 multi-jet extremly poor fuel consumption :-( help! Petedoblo Doblo 8 25-04-2011 22:29
GP 1.3 Multi jet 90hp oil consumption oldoiler Lets Talk FIAT 2 19-03-2010 22:19
(G) M-Jet Fuel Consumption?? Dukeman Grande Punto 27 18-04-2008 12:54