Seized turbocharger back on-lineimage

Seized turbocharger back on-line

Re-Engineering and Machining

10/18/2019

If you are reliant on “heritage” engine models, or those simply not made anymore, then chances are you will have experienced supply problems for ongoing maintenance or repairs.

Sourcing of spares can usually be overcome with a bit of digging, but when it comes to major assemblies, it can be a lot more complicated, not to mention expensive!

One of our clients found themselves in that position recently with two Sulzer LAG46 Turbochargers that had seized.

With no replacements available, the turbochargers have arrived in our workshop for full overhauls. 

The work we are carrying out demonstrates a mixture of options which I hope is of interest in case you find yourself needing to resurrect a “heritage” engine:

  • Rotor shaft skimmed and new labyrinth cover made after the shaft was found to have considerable circular grooving due to contact from the labyrinth seal as a result of excessive bearing clearance
  • Manufacturing new non-standard high tensile bolts in-house after the nozzle ring retaining bolts sheared off during removal.
  • Manufacturing replacement bearings because removed bearings had radial scoring and required renewing.  These bearings are no longer available
  • The aluminium air volute flange was cracked and had to be specialist welded and skimmed flat
  • Specialist welding of the cast iron exhaust inlet housings, which have cracked in various areas around the internal webbing

Once the inlet housings are back from welding, we will be able to complete the overhaul and get the turbos back to the client with minimal downtime and cost.

If you have any issues that require specialised machining or have an upcoming overhaul due, we’d be happy to help. Send an email to info@bartechmarine.com or call +44 (0)1206 673101.

Signup to receive our newsletter

Simply enter your details below to be kept up to date

  • This field is for validation purposes and should be left unchanged.

Engineer Resource Vol. 2 is now out for FREE download. Get your copy now!

A collection of articles to help you improve engine reliability, performance and safety specifically for engineers, brought to you by Bartech Marine. Simply enter your email below to get instant access.

  • This field is for validation purposes and should be left unchanged.

By completing this form you are agreeing to our privacy policy.

Freeguide
free engineer resource guide
Top