No Power

[boxa]

your right it did put oil in the engine and i had the same thoughts but i undone the exhaust and it didnt really make any difference but there is oil in it !

[thewingedavenger]

Is the CAT attached to the manifold or part of the exhaust on this model? Certainly the oil in the exhaust would account for the smoking and it takes a while to heat up and burn out. If the CAT is attached to the manifold did you disconnect the exhaust after it?

[boxa]

yes i started by disconnecting underneathby the big cat then finnaly tried it off at the turbo didint seem to make any differance but not sure if it needed some back pressure

[boxa]

when it ran with the downpipe on you could hear a noticable differance in exhaust tone when you connected vac to turbo

[anchorman]

Have you tried disconnecting the turbo pipe at the inlet manifold? In other words, is all the air being made by the turbo getting to the engine or is the intercooler blocked?

[boxa]

i had the intercooler checked for leaks and it was ok dont think its blocked as i can blow through it ok

[thewingedavenger]

Try dissconecting the pipes to the intercooler as they could be full of oil as well. Not blocking but severly restricting the air flow. When turbo seals blow it can empty the oil from the engine very quickly, even to the point where the engine will run on the oil being sucked in.

[boxa]

i cleaned the intercooler out while doing the build up aswell as all pipes intercooler seems to be clean and free i could do with just getting a bit of pipe and bypassing intercooler just to eliminate it but im pretty sure its clear but who knows im open to all suggestions now as ive come to a brick wall

[anchorman]

You will get to a point where you would if you were looking in the back of a tele at licqorice allsorts. You simply need equipment to start reading things. You need a turbo specialist that can measure pressures or a dealer with a DLC3 connector who can read the thing. Take care with the latter as some will just keep throwing new parts at it until it works and present you with a bill equal or greater than the value of the car.

I don't think you can do much more practical stuff.

[boxa]

im going to try bypassing intercooler as soon as i can cobble some pipe together you never know !!!

[boxa]

anybody !!!

[anchorman]

Anybody what?

You said you were joining the intercooler pipes together..........

[igormus]

hi everybody well im not sure where to start but here goes i recently downsized from a 3.0 prado to a rav 4 d4d 2004 i bought the rav of a friend who blew the turbo. ive now replaced the turbo and for some reason the car wont rev above 3000 and it smokes badly if i disconnect the turbo vacuum the car will rev freely but no turbo spool ive read about scv valves and was wondering if this rings any bells any help or advice would be appreciated

are you sure you ve installed correct turbo ?

nozzle ring has gas flow passing square and in case a wrong turbo istalled you will have braking effect creating back pressure

[boxa]

turbo is old one rebuilt

[hedleyf]

Hi,

I would suspect the turbo, if the turbo is disconnected ie the suction pipe is off and all is ok it must be the turbo or related pipe work, I has similar prob on a previa and had to make a decision as to what to do,the turbo on this car had only been on for a matter of months as a rebuilt unit by Toyota ,took the plung as a bas...d to fit ,started up and all was well,relief.

The dealer will be able to do a test drive and record all systems on their lap top,it then will be a case of checking the date around 3000rpm and see what sensors have lost value,it will show all so can check all .

[boxa]

hi guys well the latest news is ive spoken to the guy who rebuilt the turbo and he says he will exchange it no problem ive tried just about everything else and ive been assured car was ok before turbo died so all i can do is swap it and see

[anchorman]

Good luck!

[boxa]

got exchange turbo now so watch this space !!!!!

[anchorman]

Fingers crossed.

[boxa]

one thing i noticed before i removed turbo was that exhaust back pressure when the actuator was engaged was forcing oil past the seals which then resulted in all the white smoke so im pretty sure the problem is exhaust gas related whether its the turbo is yet to be established but i did try it with the exhaust removed weeks ago and it didnt make any difference so lets hope there was a problem with the turbo

[boxa]

im not to sure about how the v vains could give this problem but im not a turbo expert but it was like the vains engaged just blocked out going gases

[igormus]

the turbo is not a unit for dismantling and re-assembling called recon.

i gave you an advise on Dec 22 to check with vanes smooth rotation from and to both end points. the variable vanes act as nozzle ring converting initial gas pressure into gas velocity, this gas flow velocity speeds rotor up to compress suction air. the rotor rpm is derectly depends on the engine load - what does it mean --- the more load the more gases are originated after combustion cycle in the cylinder leading to more speed of the rotor. at the same time the more load the more vacuum originated in suction manifold passing via an actuator mounted on the turbo and leading to pulling the rod controlling the vanes position angle on the same nozzle ring.In your case -- what has happened with turbo ---- there was a disballance between engine load and vanes position angle. In theory of the controlable vanes -- the less combustion peak pressure (load) the more opening angle between two neighboring vanes enabling gases to pass without braking effect (back pressure / contra pressure -- whatever you want) and wise with more load of the engine. The turbo recon does not mean only bearing change -- there are several gaps and rotor play readings are subject to check. Finally --- you ve lost the time + money + nerves for nothing. We're here to help but not to push you in the corner of the room Matey.

Good luck / Igor

[boxa]

So what are you saying exactly its the turbo at fault or something else

[igormus]

only turbo

[boxa]

And why have I wasted time and money ?