Mack Trucks MP8 — Mack MP8 User Manual

REPAIR INSTRUCTIONS, PABT 1 Camshatt lnstallation 1213 CHI Thй сбс3hбlt Ўs h4vy. Do NoT бllйcpl to Ўnslбll lhй cacshїll wilhyrd thй hйlp ol ar бssistant or thй use ol a sulable flting de!Ўce. Falture to heed thls warЎЎng mбу resut Ўn severe peBon.l injury бnd ll rcmov6d, icslaLlthe canshati bearЎng saddlesiolhe odginal posilions. Ca€lully lap lhe bea ng saddles onlo th e guide pins using a soit-la.€d hассйЎ until lully sealed. lnsenlh6 €mshafi low6r bearings and appry acecefous c@1n9 ol clean engine oil lo lhe camshaн bйarlngs. 6, lnslalllhe camshai uppeЎ b€aring inseds icto lhй.бnshafr bea cg caps, Ўъbricбle thй beannls acd lЎsiall lhe bearicg caps lo lhe respeclive beaЎing saddles.

Use a soflaced mallet ty sйal thy b6бricg €ps th6 2, 3, Make surй lheЎ€ b a bїбing insrt on each lowйr beбrlng saddle. The beafЎng insefls ai lhe No. 7 camshat jouhal haw lnlйgEl lnsen and hand iЎgh1en lhe dhaust slde beariЎg cap bolts and lighien lo spdЎlicalion. Fjnal liohl€nina lo speilЎed lofque %lue wlll be done laler when rhe rccker arm shafi is insralled. 3, ЎЎstallrhe bearing ep pЎess i@r (1wo r€qukбd) al lhї numbйr7бnd lhe number 1 bea cq €ps бs sh@n in lh8 illuslЙlion. NOTE fhe lootis used when adlъsting thйtimtng g€ar backlash when lhe ocker shafi assembly is Ўot 4.

C ean and inspect the canshalt usinq solwnl and comp@sed aЎr 5 Lower ihe camshafl caretully into place on lhe lower bearlnq edd es and €move lhe lifiing lool, 45109034. Folalй lhe camshaft bY hand io йnsure tho emshaft is nol bЎЎding on the l@er beбrЎno saddlйs.