Turbo cleaning products?

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I've used "Revive" at work a few times with good results, no need to remove the turbo , real easy to use
 
payydg said:
Interested in this. Let us know how it going.
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mojo247 said:
I need this too. interested to see how you get on!
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Will do.
My reasons for wanting to clean turbo- I have had some running issues now sorted but on the journey to finding the problem I cleaned the induction system from the air box to the cylinder head including removing the intercooler and inlet manifold.
Now the intercooler had some oily deposits, not much (it is flushed inside at each service) but the inlet manifold was full of crap plenty of oily sludge.
The vehicle has done 87000 mls and this was most likely the first time the inlet manifold had been removed.
The deposits must be from the closed circuit crankcase breather system on the TD5.
So this is 15 years and 87000 mls of use I suppose this is not bad, it is progressive and I did find a difference in performance after cleaning the manifold, you do not notice the gradual decline in performance.
I have made a modification to the crankcase breather system to include an filter and catch can, it still flows through the crankcase depression valve into the induction system but oil content should be greatly reduced.
Now the turbo on the induction side is the first mechanical part the vapours from the crankcase meet so I do expect some deposits in the compressor side which will need to be cleaned (not wanting to remove the turbo) hence a chemical solution.
Also the turbine in the turbo driven by the exhaust gasses will most likely have carbon deposits again will need cleaning out (again I would like a chemical solution)
 
Most snot in inlet manifolds is oil vapour mixed with the particles from the egr system.
I doubt very much that cleaning your plain jane turbo will make one iota of difference, most cleaning relates to the VGT VNT varieties that can and do seize up the internal linkages.
Google Mr Muscle turbo cleaner for some interesting reading.

Keep an eye on the oil catch tank as you will be amazed how faat it can fill up with oil sludge and condensate.
 
lynall said:
Most snot in inlet manifolds is oil vapour mixed with the particles from the egr system.
I doubt very much that cleaning your plain jane turbo will make one iota of difference, most cleaning relates to the VGT VNT varieties that can and do seize up the internal linkages.
Google Mr Muscle turbo cleaner for some interesting reading.

Keep an eye on the oil catch tank as you will be amazed how faat it can fill up with oil sludge and condensate.
Click to expand...
Thank you for the information,
Just for clarity are you saying that the carbon buildup that is likely on a diesel turbo only affects the variable vain types and that none variable vane types remain efficient.
I did not say in my post but I have removed the EGR system so no particles from that to mix with the oil vapor.
The oil catch tank will hold about 1.5lts how often do you say it should be cleaned out?
 
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Im sure a clean wont hurt any turbo, but the variable jobbies actually pack up and costs hundreds to fix if done the convential way, ie recon/refurb, at work we dont clean the truck turbos and some have done 1.3million kms.

The catch tank on my defender wasnt as big as yours maybe half a litre? I would check it every couple of weeks and its was always more than half full not of oil but water vapour mixed with oil which had turned into some sort of grey jelly, in the end I binned the tank and just ran the pipe to atmosphere.

Over the years I have had many cars intake pipework off for one reason or another and without exception if they had a closed breather set up the manifold was full of oily/gritty black snot I cant think of a better word to describe it! and every turbo had evidence of oil vapour passing through it, ie they were always slightly shiny and there was quite often a few drops/puddles of oil laying in any low points and pipe joints etc.

Pic of wifes audi intake manifold situation normal sadly!
 
lynall said:
View attachment 108244 Im sure a clean wont hurt any turbo, but the variable jobbies actually pack up and costs hundreds to fix if done the convential way, ie recon/refurb, at work we dont clean the truck turbos and some have done 1.3million kms.

The catch tank on my defender wasnt as big as yours maybe half a litre? I would check it every couple of weeks and its was always more than half full not of oil but water vapour mixed with oil which had turned into some sort of grey jelly, in the end I binned the tank and just ran the pipe to atmosphere.

Over the years I have had many cars intake pipework off for one reason or another and without exception if they had a closed breather set up the manifold was full of oily/gritty black snot I cant think of a better word to describe it! and every turbo had evidence of oil vapour passing through it, ie they were always slightly shiny and there was quite often a few drops/puddles of oil laying in any low points and pipe joints etc.

Pic of wifes audi intake manifold situation normal sadly!
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lynall this is good information from someone with experience of diesel turbo inspection after many miles.
I am now considering not to bother but just need to know how the wastegate reacts to this oily sludge (SNOT). Will this be burned off with the hot exhaust gas or would this area benefit from some cleaning attention?
I will keep a close eye on the catch tank, never gave the water vapor a thought but I may have a solution for that if it is troublesome
 
Ive not seen any damage to the hot side of the turbo caused by egr so far?
Some of the trucks that I said had done 1.3million kms are egr models, the others {daf) have only just bought in egr (64 plate) and are only at 400000k so far, so not done their full life yet.
The high mileage trucks with egr have been constant hassle with the egr from day one but that mainly because they are a crap make (scania) and their crappiest engine the 5 pot.
I personally have never cleaned the inside of any turbo on any car Ive owned, I think a lot of peoples issues with any turbo vgt or standard is they drive like miss daisy trying to get 500mpg so the set up just clogs up, whereas Im not a speed freak but dont hang around.
 
lynall said:
Most snot in inlet manifolds is oil vapour mixed with the particles from the egr system.
I doubt very much that cleaning your plain jane turbo will make one iota of difference, most cleaning relates to the VGT VNT varieties that can and do seize up the internal linkages.
Google Mr Muscle turbo cleaner for some interesting reading.

Keep an eye on the oil catch tank as you will be amazed how faat it can fill up with oil sludge and condensate.
Click to expand...
exactly turbos dont need cleaning unless its a vnt with issues
 
lynall said:
Ive not seen any damage to the hot side of the turbo caused by egr so far?
Some of the trucks that I said had done 1.3million kms are egr models, the others {daf) have only just bought in egr (64 plate) and are only at 400000k so far, so not done their full life yet.
The high mileage trucks with egr have been constant hassle with the egr from day one but that mainly because they are a crap make (scania) and their crappiest engine the 5 pot.
I personally have never cleaned the inside of any turbo on any car Ive owned, I think a lot of peoples issues with any turbo vgt or standard is they drive like miss daisy trying to get 500mpg so the set up just clogs up, whereas Im not a speed freak but dont hang around.
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jamesmartin said:
exactly turbos dont need cleaning unless its a vnt with issues
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Thank you for the information. I have not taken a turbo apart new or old so have no idea what crud if any would be present. Just looking at the inlet side and the crud what came out of the inlet manifold made me think it would also accumulate in the turbo.
 
Tim4x4 said:
Thank you for the information. I have not taken a turbo apart new or old so have no idea what crud if any would be present. Just looking at the inlet side and the crud what came out of the inlet manifold made me think it would also accumulate in the turbo.
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you get crud in the inlet manifold because of the egr ,unless engine is very worn out ,turbo outlet should be clean with a little oil
 
jamesmartin said:
you get crud in the inlet manifold because of the egr ,unless engine is very worn out ,turbo outlet should be clean with a little oil
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To be honest from what I can see after taking off the rubber air pipe to the turbo it looks as you describe (clean with a little oil) so I will be leaving the turbo well alone. I have cleaned the inlet manifold that was covered in crud, the intercooler which was not very dirty and all the piping on the intake side which had a smear of oil on the inside. The inlet manifold was definitely the most contaminated 86000 mls and this was the first time of removal.
 
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