2008 US - Marine Office

Pump MountingJohnson Pump engine cooling pumps, the F-series (flexible impellerpumps) are available in several different styles and sizes to satisfydifferent cooling system needs. Flanged pumps which mount directlyto the engine and crank shaft pulley mounted pumps are available for awide variety of engines. Johnson Pump is the original equipment pumpsupplier to the largest manufacturers world-wide of inboard engines.Both flange mounted and pulley driven pedestal pumps can be used toprovide cooling with a maximum of ease and flexibility. Pump ports areavailable in sizes from 3 /8" to 2. 1 /2".Flange Mounted PumpsFlanged pumps are normal pumps produced in high volumes, customerdesigned for flange-mounting at a power take off of the engine.Different types of drives can be used but mainly gears or any type ofdriving members are used.Crank Shaft Pulley MountedThese pumps are designed for direct installation on the engine crankshaft pulley. Max. revs. 5.000 per minute. For some engines an adaptorkit for the engine crank shaft pulley is available.To prevent the pump from rotating, a torque bracket from the fasteningpoint on the pump body to a suitable point on the engine has to beused.Pedestal Mounted PumpsPulley driven pedestal mounted pumps are used when a free driving pulley isavailable on the engine.Two different types of pedestal mounted pumps are supplied by JohnsonPump.• FB-8A range of bronze pumps in compact design. Ideal as cooling water pumpsin marine engines. Available in sizes from 3 /8" to 1. 1 /2", all with permanentlylubricated double ball bearings and mechanical seal. (See page 24-25 forfurther information.)• FB-3000A range of extra heavy duty pedestal mounted pumps excellent for coolingpurpose in commercial vessels. The design means separate bearing housingswith permanently lubricated double ball bearings, mechanical shaft sealfor extended service life. Wetted parts as wear plate, cam and endcover areeasily replaceable.(See page 26-27 for further information.)F7B-8Belt driven pumpF8B-3000Belt driven pumpF9B-9 Flangemounted pumpF6B-9 Crank shaftpulley mountedF4B-9 Flangemounted pumpF7B-9 Flangemounted pump30