Mini Spares Articles - C-AJJ3322 - MINI SPARES FIXED ADJUSTMENT BELT DRIVE KIT

The application of this drive system maintains very accurate and consistent cam and ignition timing, and minimises valve train noise - desirable advantages that do not diminish with time. The fibreglass reinforced belt all but eliminates the excessive stretch suffered by chain driven systems-even when a tensioner is used.

03/12/2005

FIXED ADJUSTMENT BELT DRIVE KIT

The application of this drive system maintains very accurate and consistent cam and ignition timing, and minimises valve train noise - desirable advantages that do not diminish with time. The fibreglass reinforced belt all but eliminates the excessive stretch suffered by chain driven systems-even when a tensioner is used. The protracted control of cam and ignition timing maintains peak performance. Chain drives cause excessive timing scatter, even after relatively short periods of running. The MINISPARES kit enables A-series owners to benefit from such technology.

FITMENT: Remove the original timing cover. Position gears so that the timing marks on cam and crank gears are adjacent, then remove the old gears/chain assembly. Remove locating keys. Clean cam and crank gear boss surfaces, ensuring the new gears are no more than a light slide fit. Refit or replace keyways and re-check gears for light slide fit. On tensioner type set ups, refit the two original front plate bolts directly below the water pump along left edge of block. Leave the centre bolt/nut out on A+engines. Carefully press the seals squarely into the seal cover. Fit gasket supplied in place using a little sealant. Position cover against engine, and fit with new retaining bolts supplied using a thread lock liquid. Before tightening bolts, fit the two gears with belt and timing marks correctly aligned through their relevant seals and onto shafts. This will centralise the cover, helping to avoid leaks. Tighten the bolts down evenly to ensure the cover is pulled down square.

CAM TIMING ADJUSTMENT: To set the cam gear in correct position, ensure cam and crank gears are set with timing marks aligned adjacent to each other. Fit cam nut, and tighten enough to pinch the cam wheel so that cam end float can be checked. It should be 0.003” to 0.007”. When satisfied all is correct, apply a small amount of liquid thread-lock to the cam threads and torque cam nut up to 65lb ft.

IF THE CRANK DAMPER PULLEY HAS A TIMING SERVICE PLATE FITTED, IT MUST BE REMOVED>Then refit crank pulley and tighten nut up to 65lb ft. Note a breather is not required on the cover, as no ventilation is needed but if not used ensure it is plugged. Take great care not to damage the belt when assembling, as this will cause failure in service. The cover is split to aid belt inspection. Regular inspection should be carried out where used in hostile or severe conditions. Replace belt every 20,000 miles in normal road conditions. It is entirely possible to fit either the rota- adjust or vernier adjustable cam pulleys to this kit.

Importation rules regarding vehicles are very specific: Only those over 25 years in age may be brought in to the USA without compilance to Federal Motor Vehicle Safety Standards (FMVSS).

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