The application of this drive system maintains very accurate and consistent cam and ignition timing, and minimising valve train noise. Desirable advantages that do not diminish with time. The fiberglass reinforced belt eliminates the excessive stretch suffered by chain driven systems - even where 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 MINI SPARES kit enables A-series owners to benefit from such technology. The adjustable cam gear in this kit allows up to 9 degrees of adjustment, facilitating accurate cam timing. An absolute must when installing a performance camshaft.

FITMENT: Remove the original timing cover. Position gears so that the timing marks on cam and crank gears are adjacent, then remove gears/chain assembly. Remove locating keys. Clean cam and crank gear boss surfaces, ensuring new gears are no more than a light slide fit. Re-fit keys. Re-check gears for light slide fit. On tensioner type set-ups, replace the two front plate bolts directly below the water pump along left edge of block. Leave centre bolt/nut out on A+ engines. Carefully press the seals squarely into the seal cover if not already fitted. Fit gasket supplied in place using a little sealant. Position cover against engine, and fit with new retaining bolts supplied. Before tightening bolts, fit the two gears assembled with belt and timing marks correctly aligned, through their relevant seals and onto shafts. This will centralise the cover, helping to avoid oil leaks. Tighten the bolts down evenly to ensure the cover is pulled down square. Fit the cam nut, and tighten enough to pinch the cam wheel assembly so that cam end float can be checked. It should be 0.003” to 0.007”.
When satisfied all is correct, remove cam nut, apply suitable thread-loc liquid, and torque up to 65lb ft. After cam timing has been set to your satisfaction, fit the dust covers. Adjustment is achieved by undoing the bolts securing the cam gear outer and centre boss together, then rotating the cam in the required direction by using the cam pulley retaining nut. Once the correct setting is achieved, re-tighten all the bolts carefully. They do not need excessive tightening.

NOTE: The kit is supplied with a breather plug. Make sure it is blanked off. 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 conditions. Replace belt every 20,000 miles in normal road applications. This kit has been used on race engines up to speeds of 9,500rpm.