puff of blue smoke

[cncfabs]

I think I've found the culprit :

http://www.youtube.com/watch?v=f1Nl0WERCI4

Thats not how you check a turbo they all have side to side movement the oil pressure centralises it when running.You need to remove the exhaust manifold where the front pipe fits on and check it for endfloat.You shouldnt have any endfloat.side to side movement is fine as long as the vanes havent scoured the housing.

 

[stinka]

cant i just pinch it and pull the thing back and forward then ?

no pun intended lol

 

[cncfabs]

cant i just pinch it and pull the thing back and forward then ?

no pun intended lol

Yes you could do it like that to give some indication.To check properly you need to put dial guage on it but in reality if you can feel any endfloat its stuffed

 

[cncfabs]

Turbo failure in terrano isnt common ive had about 20 terranos and never had one with bad turbn the other hand ive had similar number of saabs and ive never had one which hadnt had a blown turbo

 

[stinka]

whats causing my blue smoke then ??

Its a tidy '02 2.7 with 140k up it

I refuse to believe the rings are worn when the rest of the truck is such good nick

 

[makeitfit]

Might be worth a quick compression test That'll point out rings, valves and or guides.
What about oil blow by thingy, did you bin that?

 

[cncfabs]

whats causing my blue smoke then ??

Its a tidy '02 2.7 with 140k up it

I refuse to believe the rings are worn when the rest of the truck is such good nick

did you check endfloat

 

[(RIP) PLANK]

a random question, but does your intercooler look oily in the front left hand corner?

 

[stinka]

Might be worth a quick compression test That'll point out rings, valves and or guides.
What about oil blow by thingy, did you bin that?

Whats this then mate ?

 

[stinka]

did you check endfloat

Will do tomorrow.

 

[makeitfit]

Whats this then mate ?

Crank case fumes are sent to a filter canister thing and then returned to the sump. If it gets bunged up, oil laden fumes get put back into the air intake post MAF and into the I/C and then your inlet manifold etc etc

 

[stinka]

Ah yes the breather system, might just bung this up and vent crankcase to air with a small k&n type thing

 

[makeitfit]

Ah yes the breather system, might just bung this up and vent crankcase to air with a small k&n type thing

That'll do it just so long as the bung you use/make is bigger at one end to stop it getting sucked in

 

[stinka]

Found the perfect breather pipe bung

 

[stinka]

checked all breathers by blowing down them, they are fine and dandy, nice and clear, and when running there is nothing blowing out of the breathers ie. like a worn engine does, where you get a lot of blowing and smokey stuff

Also, on the smoke front it only happens when turbo spools hard. like i can rev it hard on the spot and i get nothing but black and smoke, but as soon as i rev it that hard that i hear the turbo spin thats when it gives a puff of smoke.

Also there is a slight bit of fore and aft play in the turbo bearing, perhaps 0.5 mm

.... Hmmmm

 

[cncfabs]

checked all breathers by blowing down them, they are fine and dandy, nice and clear, and when running there is nothing blowing out of the breathers ie. like a worn engine does, where you get a lot of blowing and smokey stuff

Also, on the smoke front it only happens when turbo spools hard. like i can rev it hard on the spot and i get nothing but black and smoke, but as soon as i rev it that hard that i hear the turbo spin thats when it gives a puff of smoke.

Also there is a slight bit of fore and aft play in the turbo bearing, perhaps 0.5 mm

.... Hmmmm

0.5 is huge mate you should have between 1 and 3 thousanths of an inch.

 

[stinka]

I'm going to have to pull turbo off and send it away for recon.

Anyone suggest somewhere in the midlands ?

 

[(RIP) PLANK]

out of interest (again) is the front bottom corner of your intercooler black and oily? :nenau

 

[stinka]

out of interest (again) is the front bottom corner of your intercooler black and oily? :nenau

what do u mean by this mate, its a vague question

front left or right ? and where, in the casting or by the breather canister on front right as u look at it ?

 

[makeitfit]

The intercoolers sometimes crack