Turbo pipe along side gear box and sump
Turbo Pipe.

This is the pipe from the turbo to the intercooler. This pipe has corrosion and will require attention soon.  The pipe runs from the back of the engine, where the turbo pump is located, then to the Intercooler.

[I have since renovated this pipe and spray painted it with a high temperature paint from "Screwfix"]


Turbo return pipe after painting.

Here can be seen the same turbo return pipe after I had renovated the exterior and sprayed with heat resistant paint.

Check flexible connection for splits, vibration scoring and perishing.
Check the "Jubilee" clips and tighten.
This pipe is supported on the engine block. Check this bolt, as it has a habit of unscrewing, due to engine vibration.

Information below was obtained and is acknowledged to this site:

In order to handle speeds of up to 150,000 rpm, the turbine shaft has to be supported very carefully. Most bearings would explode at speeds like this, so most turbochargers use a fluid bearing. This type of bearing supports the shaft on a thin layer of oil that is constantly pumped around the shaft. This serves two purposes: It cools the shaft and some of the other turbocharger parts, and it allows the shaft to spin without much friction.
This oil comes from the engine so oil changes are very important and should be carried out at the allocated times.
Some turbochargers use ball bearings instead of fluid bearings to support the turbine shaft. But these are not your normal ball bearings, they are super-precise bearings made of advanced materials to handle the speeds and temperatures of the turbocharger. They allow the turbine shaft to spin with less friction than the fluid bearings used in most turbochargers. They also allow a slightly smaller, lighter shaft to be used. This helps the turbocharger accelerate more quickly, further reducing turbo lag.