Mack Trucks MP8 — Mack MP8 Engine Service and Repair Manual PDF (EN)

REPAIR INSTRUCTIONS, PABT 3 Engine Operational Check 1, Remde alllools lroc the engino Bun-in pocedures EЎy depending on cerЎiod ъsed (i.й., €.ainй dynamomeler. cha$is dynamocйler or hishway run-in), Regadless ot melhod, however, always prepare fto €nginй propй y bбlorй sraninq il fof lhe li6t liсй. 2. CoЎne.l lhe batery Йb es (Ўegative cable 3- Cleбr lhe rcrk area ol debls and рй6onnй1. Bunln Check NOTE NOTE lnslбll any addilional inslrumenlalion n€€dйd lor is inponanl b prop6r br€бk-iс inilial stбriup ol the enoЎne. 4. Siarl lhe eЎglne and immedialely increase lhe speйd lo I 200-1 600 lpm. Du cq b€ak-in p6riod, chdk lor eaks and monilor gauges lor sarЎshciory oil pre$u€, erc, 5.

OpeElelhe engine wilhin lhe 120G-1600 Ўpm Enq6 for 15 minul€s. Thй opedor should be iam laaf wlih the cofЙct, esiablished po@du@ for checting .hassis powйr hfoe usinq the chassis dynamomйlйr method lor run ic. Beler lo applicable chasis dynamomeler opeEling procedure. The operator must be obsetoanl nryughoъ lhe enlte run-in prooedure in order lo deleot бny NOTE DO NOT alLow the enqlne to dfop io idle speed ulillhe 15 minule break-in period al 1200-1600 rpm h6 bї€n complй16d. Conslanlly monilorlhe inslrumenl display ol 6ngin€ lunclions and suppol systere and re@rd 6. Shutdowc the ecqine. 7. Check the iuЎd Idels and fllio capacliy betore @slanЎnq rhe enqiЎe. 0. Ralerlo RebuЎI EЎgjne Bun-Ў.

Pr@dъrcs aoЎ lnspeciions ly bo suЙ ol propйr engine opeElion belore releasiЎg the @hicle tor ll lhй 6nginй dedops any ot lhe io l@ing abnormal chaЙcteristics during ruЎ'in, shul ll oiscover and cofecl probl€ns bбloЎe @nlinuinq Always ihvostiqalй the lollowing condilions: ' Unusual.oisйs, suchas knocklng, scЙpins, . A signilicact dop in e.gine oil pressure I A slq nЎlica ct ris6 in coolanl lem perature, exc@dins 116.C1240.F) . A signЎlЎcarn rise in oilt6mpeElure thal exceds r16'c (240.F) .

An exhaust lempedture lhal exceйds maximum a.ceplable limilslof lhe ongine involved, as mйsured by a pyromeler (il t Any oil, eolant, fuel or air inl6l svstem lйaks REBUILT ENGINE RUN-IN PROCEDURES General The duEbЎlily and seryЎce lile ol a rebuill enginй is dirйcty @lбred lo its initial run Ўn io towinq overhau . Aftor a complerй owrhaul or any major repan job Ў.volьng inslallalion of pisron rjnqs, p slons, cylindei linefs or bea hgs, the ongine mu6l be run-in pior lo releбse lor servicй.