DreXeL
New Member
I have a 110 fitted with a 300tdi (disco lump). A few months ago I started getting what sounds like a boost leak. This has got progressively worse and now sounds like a tornado at full boost. I replaced all intercooler piping, no change, fitted a new intercooler, still no change, and just recently fitted a new intake manifold gasket, and still no change. I inspected the inlet manifold whilst it was off and couldn't see any splits. I also very briefly ran it with the intake hosing off to eliminate any splits in the intake/snorkel, again it was still making the noise.
The turbo itself does have a little play, but not a massive amount. The impeller doesn't spin that freely though, it stops almost straight away when I give a spin with my fingers. Also, the edges of some of the impeller blades are slightly 'feathered' and rough, like something small may have struck them at some point. It's hardly anything though. (Note, they were already like that before I ran it with no intake).
It's still making very good boost (peaking at 16-18psi) and performance seems unaffected.
My next step is to buy a reconditioned turbo core, but is there anything else glaringly obvious I may have missed?
The turbo itself does have a little play, but not a massive amount. The impeller doesn't spin that freely though, it stops almost straight away when I give a spin with my fingers. Also, the edges of some of the impeller blades are slightly 'feathered' and rough, like something small may have struck them at some point. It's hardly anything though. (Note, they were already like that before I ran it with no intake).
It's still making very good boost (peaking at 16-18psi) and performance seems unaffected.
My next step is to buy a reconditioned turbo core, but is there anything else glaringly obvious I may have missed?
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