PLEASE READ THESE INSTRUCTIONS FIRST

The pumps are thoroughly cleaned when assembled, so only priming the pump is necessary prior to fitment. A precautionary testing of the pump prior to priming is recommended - merely turn the rotor using thumb and forefinger engaged on the pump drive. It should turn freely. If it does not, it will be necessary to strip the pump down to make sure no debris is causing the problem. Make careful note which way up the annulus fits and ensure it goes back the same way. Prime the pump with preferably engine building lubricant (less likely to drain away before start up is effected).

If not properly primed, oil pressure may not be obtained; crankshaft and bearing damage may result.

Make sure the retaining bolts do not bottom out in the relevant tapped holes in the block before securely clamping the pump to the block. Any air leaks caused by using bolts that are too long will cause oil pressure deficiencies, drain-down and oil supply problems. Do not over-tighten the retaining bolts - the torque setting is only 8-10lb ft. Over-tightening will cause the same problems detailed above by causing the gasket to split. The pump should only be fitted once the rest of the engine has been assembled - block assembly, timing gears, cylinder head and gearbox and after initial valve clearances have been set.

Once the engine is fitted into the car, turn engine over on starter in short bursts with spark plugs removed until oil pressure is achieved before finally starting the engine. The oil pump is the heart of the engine - literally. If it malfunctions or fails, so will the engine. The results can be catastrophic and costly so investment in a decent oil pump is essential - particularly on tuned engines that are likely to see more arduous use than the standard one. This range of oil pumps has been produced by Mini Spares to circumvent the shortcomings built into modern mass-produced oil pumps.

The components are hand selected and matched then hand built to maintain critical working tolerances - particularly end float; criteria lost on modern day assembly lines where robot machines do most of the work. An especially effective and high capacity 'four into five' rotor and annulus is used in conjunction with efficient porting throughout the whole range, ensuring maximum flow at all rpm levels (although nearly 40% of all oil pumped is dumped straight back into the sump via the oil pressure relief valve) - the same style as used on the old steel-backed design Holbon Eaton pump. All pumps have multi-hole fixings(there is a pump to fit every engine block) without the need for drilling and tapping extra fixing holes in the block. Extremely useful when wishing to fit a star or spade drive pump to an S block. However, a spacer (11G1127) would still be needed when fitting one of the large-bore block pumps to a small-bore block.

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).