Published date: 16 August 2022

Closed early engagement


Closing date: 20 September 2022

Contract summary

Industry

  • Mechanical engineering services - 71333000

Location of contract

SE7 8LX

Procurement reference

tender_312173/1093739

Published date

16 August 2022

Closing date

20 September 2022

Contract is suitable for SMEs?

Yes

Contract is suitable for VCSEs?

No

Description

The three Mirrlees Blackstone engines (ESL16 twin bank engine) installed at Thames Barrier are fast approaching their anticipated three- quarter life survey . The following inspections and component overhaul are proposed , in order to enable the engines to be suitable for a further 10-15-year period.
1. Nodal Damper Coupling (NDC) fluid level check
2. Gearbox bearing and final alignment verification
3. Cylinder Liner Nose O-ring Renewal
4. Liner deglazing and Piston Ring Pack replacement
5. Cylinder Head Decarbonising and Pressure Test
6. Jacket Water Pump.
7. Standard Service Procedures
Within procedures 1 - 6 carry out standard service work to include:
- Recalibration of fuel injectors (does not include nozzle replacement)
- Pressure testing of internal fuel system
- Renewal of lube oil filter elements (engine)
- Renewal of lube oil filter elements (gearbox)
- Renewal of fuel filter elements
- Re-setting of exhaust valve tappet clearances
- Visual Inspection of internal pipework
- Visual Inspection of camshaft assembly and drive gear train
- Visual Inspect all coolers and heat exchangers for external leakages
- Operational check and adjustment of mechanical overspeed
- Operational check and adjustment of decompression system
- Renewal of all crankcase and camshaft door joints
- Check and record crankshaft deflections
- Measure and record crankshaft end float
- Operational check and adjustment of internal and external fuel rack linkage
- Operational check of engine and gearbox lube oil pre-prime system
8. Recalibration of on engine sensors
9. Re-commissioning / load test

The engineer/s working on the project must have in-depth knowledge of ESL 16 twin bank engines, with proven evidence of experience. The successful supplier will provide spares when required, within a reasonable lead time.
The preferred supplier must be CTC (counter terrorist check) cleared prior to contract award.

About the buyer

Contact name

Lu

Address

Guildbourne House, Chatsworth Road,
Worthing,
BN11 1LD
England

Telephone

00

Email

lu.mao@environment-agency.gov.uk