110ENGINECOMPONENTANDLOCATION
CoolingSystem
Thecoolingsystemincorporatesabelt-drivencoolantpumpmountedonthefrontof
theengineontheright.Italsousesapiston-typethermostathousedinthefrontof
thecylinderheadandafanwithviscousorair-operateddrivemountedabovethe
crankshaftpulley.Acoolantconditioner(lter)attachedtothepumphousinglters
impuritiesfromthecoolantandreleasessupplementalcoolantadditivesforsystem
protection.
CoolantPump
W2033363
1.ImpellerHousing3.CoolantPumpMountingPlate
2.CoolantPumpSeal
Thebackofthecoolant(water)pump,withitsductsfordistributingcoolant,isa
separatecastingattachedtothecylinderblock.
Ahousingcontaininganimpeller,shaftseals,bearingandpulleyattachestothe
mountingplate.Thebearingisapermanentlylubricatedcombinationrollerandball
bearing.Betweentheshaftsealsandthebearing,thereisaventilatedspacewhich
leadsintoaductbehindthepulley.Thisallowsinternalleakstobedetected.