2.4 CLEARANCES


The engine must clear all surrounding components in the engine bay at maximum engine
movement including under maximum torque in both forward and reverse gears. A clearance of at
least 10mm must be provided beyond that required for maximum engine movement.
Additional clearance must be provided to components likely to deteriorate from the heat from
nearby engine and exhaust components. In particular, flexible fuel pipes, power steering hose and
steering column shaft couplings incorporating rubber or fabric components must be placed well
clear of hot exhaust components and shielded if necessary.
When fitting a replacement engine to a vehicle with a beam type front axle, sufficient clearance
must be provided between the top of the axle, steering linkages and drive shaft (on four wheel
drive vehicles) and the engine (usually the sump) to allow the axle full bump movement.
 
 
http://www.infrastructure.gov.au/roads/vehicle_regulation/bulletin/pdf/NCOP3_Section_LA_Engine_01jan2011_v3.pdf