---
title: "Thames Barrier Mirrlees Blackstone Engines Three-Quarter Life Survey"
ocid: "ocds-h6vhtk-035ed6"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-035ed6"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-035ed6.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-035ed6.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "DEFRA NETWORK ETENDERING PORTAL"
published: "2022-08-16"
---

# Thames Barrier Mirrlees Blackstone Engines Three-Quarter Life Survey

Buyer: DEFRA NETWORK ETENDERING PORTAL  
Current stage: Planning  
OCID: ocds-h6vhtk-035ed6

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## Summary

The Defra Network eTendering Portal, a UK National Agency for Environmental Protection, is planning a tender for the procurement of services related to a three-quarter life survey for Mirrlees Blackstone engines at Thames Barrier. The procurement involves mechanical engineering services to inspect and overhaul the engines to extend their operational lifespan. The tender requires suppliers with expertise in ESL 16 twin bank engines and the ability to provide spares promptly. The preferred supplier must undergo a counter terrorist check prior to contract award, with a future notice date set for December 12, 2022.

This tender presents an opportunity for businesses specializing in mechanical engineering services to showcase their expertise in engine inspections and overhauls. Companies with experience in working with ESL 16 twin bank engines and providing spare parts efficiently would be well-suited to compete for this tender. The planned procurement process is currently in the tender stage, offering potential suppliers a chance to demonstrate their technical capabilities and secure a contract to support the maintenance and longevity of critical infrastructure at Thames Barrier.

## Notice

The three Mirrlees Blackstone engines (ESL16 twin bank engine) installed at Thames Barrier are fast approaching their anticipated three- quarter life survey .

### Lot Information

Lot 1

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.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/022582-2022 |
| Notice type | Planning Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 16 Aug 2022 |
| Submission deadline | Not specified |
| Future notice date | 12 Dec 2022 |
| Award date | Not specified |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Planned |
| Lots status | Planned |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | DEFRA NETWORK ETENDERING PORTAL |
| Locality | LONDON |
| Post town | South East London |
| Postcode | SE7 8LX |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI5 Outer London - East and North East |
| ITL 3 | TLI51 Bexley and Greenwich |
| Local authority | Greenwich |
| Electoral ward | Charlton Village & Riverside |
| Westminster constituency | Greenwich and Woolwich |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71333000 - Mechanical engineering services

## Release History

- 16 Aug 2022 at 11:03 - Planning - Planning Notice - https://www.find-tender.service.gov.uk/Notice/022582-2022

## Notice URLs

- https://defra.bravosolution.co.uk/

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-035ed6. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-035ed6.json.