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Rb20 Turbo Rotation

Unkn0wn
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Unkn0wn Enthusiast

Unkn0wn

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Has anyone ever rotated the exhaust and intake of the rb20 turbo.

i had to to fit mine to numerous things and i must be doing it wrong, as they seem to last about 1-2 months before a seal is broken and oil is spilling into my engine.

given this is the second time, i dont want to have to take the next one off in a few months i want it to last.

Christian

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https://www.sau.com.au/forums/topic/259559-rb20-turbo-rotation/
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Slide Grand Master

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The exhaust housing has a fire plate underneath the exhaust housing, rotating this providing you don't chip the ceramic turbine wheel will give no problems.

The compressor housing has a metal gasket which has a sealer paste holding it in, spinning this can sometimes push the dried paste into the line of the compressor wheel. Not so common.

Where you would go wrong though is if when you spin the housings the cartridge is not North/South with the oil intake above and oil drain below you may run into problems as the junk in the oil stays in parts of the cartridge and cannot be gotten rid of and is constantly lubricating the bearings.

Other then that, they are 20 years old, they have done their job and are and will all eventually die.

All contact style bearings especially when combined with a ceramic turbine will fail after this amount of time and in many case much sooner.

If your oil pressure is poor to the turbo and its not lubricated properly you will fry the seals and they will wear down without the oil buffer.

Take some pictures of the turbo that failed and it could show the problem.

Unkn0wn Enthusiast

Unkn0wn

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Hi

Thanks for all the info.

The reason i rotated it was to have the oil on top and the drain below, as it was fittest to a patrol not a skyline.

It has been blowing oil into the intake. its been doing it for about 2-3 weeks i guess but on the weekend it was blowing so much the diesel engine was 'missing'. It was shooting so much oil into the intake the poor diesel engine dident have enough diesel in the cylinders to compress / combust correctly.

I will post pics when i remove it on the weekend.

Christian

Slide Grand Master

Slide

Posted
Posted

It may very well be coming from the breather at the head caused by blow by.

Check the down pipe that runs into the turbo intake for oil or setup a temporary catch can just to see if it is the cause if you have not looked at this.

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