Hey guys, in need of a bit of help here as this is taking the piss a bit now.

 

Tonight my passenger side turbo died for the 4th and im fed up.

 

what can cause a turbo on that side to constant keep dieing?

 

Symptoms are, fit a nice healthy turbo, within 50-70 miles, I get a very nasty clunking from that side and I loose all boost and after I can boost past 0psi at all! :( Then check the turbo out, and ive got 2-3mm of play in the shaft!

 

The last one I fitted was 2 days ago, checked the oil lines to it were free and not clogged and alls good. Makes boost fine for the 1st 25-30 miles or so, then all of a sudden it just gives :(

 

Getting tired of fitting a new turbo every couple of days now what on earth could be causing it?

actuators?

all 4 turbos cant have faulty actuators surely? nothing was swapped between units :(

Blocked oil feeds, do you know what psi you turbos were running?

As Mark says, Sounds like loss of oil to the turbo's, or restricted water flow which could also cook the bearings.

yep as mark says - oil starvation

 

regards,

 

alex

well i cleaned the pipe out from the oil pressure sender a few times now, its free and clear, its getting good water flow i swapped the rubber pipes for clear braided ones so I could see water flowing round. :(

 

any ideas how I can check theres actually oil flow?

2 things Ive just thought about...

 

could a blockage in the return to the sump also cause starvation? In the sense that the oil cant get out once its get in (havent checked this)

 

also, could the oil thats in there be a factor? Got Castrol GTX in at the moment. (not magnetec)

can't be water as my friend is running without any water line on his turbos.

 

Do you find something inside the turbo, is it damaged or just the axe?

can't be water as my friend is running without any water line on his turbos.

 

Do you find something inside the turbo, is it damaged or just the axe?

 

Bub if these are stock turbo's hes running then it isnt a very good idea my freind. Oil cooled turbos (those with no provision for water) have a large gallery for the bearing section as well and an large passage for oil cooling, hence they dont need water. The stock turbos have a large Water gallery for cooling and a small Oil passage for lubrication only. This has been covered on here before, doing this on stock turbos is not a good idea, not good at all. there is not enough oil held in the Turbo to cool as well as lube the bearings.

there are 190 000kms and still running good (they are automatics turbos)

2 things Ive just thought about...

 

[b[could a blockage in the return to the sump also cause starvation?[/b] In the sense that the oil cant get out once its get in (havent checked this)

 

also, could the oil thats in there be a factor? Got Castrol GTX in at the moment. (not magnetec)

 

 

Yes, i guess if the return pipe has blocked then hardly any will get back to the sump=very poor flow.

 

But from memory, these are quite large pipes?

 

Is there any way you can take the oil feed off and run the engine to check flow TO the turbo? Then take return pipe off and run again to see what's comming into the sump? compare the 2.......

 

But 4 turbos lasting 400miles sounds very drastic dude. :(

yes return pipe are large so won't think they will plug or oil line will be plug before !!

but trying to remove this small hose and starting your engine is a good idea.

sorted, took turbo off today, and after much inspecting of everything, turned out the tiny tiny hole that feeds the line to that turbo in the oil pressure unit was blocked! GODDAMIT!! :(

 

so I drilled it a bit bigger, from 1mm - 2mm, cleaned it all out, so shouldnt clog again unless theres some serious debry floating about in the oil, in which case a turbo going down is probably the least of my worries!

 

thankfully i had a spare driver side turbo knocking about, so used that, now all seems sweety :)

 

cheers for all input tho fellas :)

sorted, took turbo off today, and after much inspecting of everything, turned out the tiny tiny hole that feeds the line to that turbo in the oil pressure unit was blocked! GODDAMIT!! :(

 

so I drilled it a bit bigger, from 1mm - 2mm, cleaned it all out, so shouldnt clog again unless theres some serious debry floating about in the oil, in which case a turbo going down is probably the least of my worries!

 

thankfully i had a spare driver side turbo knocking about, so used that, now all seems sweety :)

 

cheers for all input tho fellas :)

 

 

you should replace the feeds to the turbo when you replace the turbo/s anyway,or should i say its recomended :cool:

i did, just not the stupid pressure sensor assembly :(

sorted, took turbo off today, and after much inspecting of everything, turned out the tiny tiny hole that feeds the line to that turbo in the oil pressure unit was blocked! GODDAMIT!! :(

 

so I drilled it a bit bigger, from 1mm - 2mm, cleaned it all out, so shouldnt clog again unless theres some serious debry floating about in the oil, in which case a turbo going down is probably the least of my worries!

 

thankfully i had a spare driver side turbo knocking about, so used that, now all seems sweety :)

 

cheers for all input tho fellas :)

dont want to piss on your bonfire mate but drilling any oil feed passage and not being able to flush out from the back side is very risky,one tiny piece of swarf will give your turbo a bad day on start up plus from experience on modifying motorcycle oil feeds when you up the diameter you decrease the pressure. in any case i hope you,ve sorted the problem because as you stated 4 times is a little over the top in the patience stakes :headvswal

seen turbos fail very quickly due to debris from the last turbo left in the intakes/intercoolers.tiny particles stick in the walls of the hoses and come out under boost straight into the new impeller. :cry:

seen turbos fail very quickly due to debris from the last turbo left in the intakes/intercoolers.tiny particles stick in the walls of the hoses and come out under boost straight into the new impeller. :cry:

i think his problem is the lube side and not induction bud,but yes your right on the above fact new turbos and still the damaging crud left in the pipes

Just for future reference the diameter of the hole feeding the turbos is crucial to their operation and drilling it out as the others said is not recommended, always replace with new oil lines.

 

For future reference.

 

Castrol GTX and Magnatec are not what I would use in a zed, they are more prone to blocking oil feeds as they are not fully synthetic, use only fully synthetic oil.