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Bruss

Evora S Service Bulletin Sb2013/03R

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Description of Defect:

 

There have been two incidents where an engine oil cooler hose has ruptured resulting in oil loss. A lack of clearance between the hose and the edge of a composite bulkhead may result in abrasion to the hose due to the natural movement of the engine (see Annex C).

It has been established that in the event of hose failure, engine oil may be ejected onto the road surface and/or rear wheels which could cause a reduction in vehicle control and potential engine failure. There may also be a loss of oil into the engine bay area resulting in an increased risk of fire. This could result in a crash, serious injury or fatality.

 

The pipe in question is a Lotus designed part, manufactured by Delta Aircraft Services and is used exclusively on Evora supercharged, manual gearbox variants.

 

The part is now obsolete following a system design change implemented with the introduction of the Evora auto gearbox variant.

 

Proposed Remedial Program

 

Lotus can now offer an oil cooler hose kit which is fitted as a direct replacement for the original hose. The revised hose dimensions ensure that the rubber section of the assembly can no longer make contact with the chassis or bulkhead panel.

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