REPAIR INSTRUCTIONS, PART 2 UNIT INJECTOR CLEANING Prel¡minary Sleps Rem@ lhe ioll@ing .omponents rom thé ángine (s€é ENGINE DISASSE¡¡BLY ior
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Cy inder l¡@d Cove¡ Rocker Arn ShanA$embly
Cleaning and Inspect¡on
NOTE Since the lnil iñjectors opeEle at very h¡gh tue injeclion pEsures,lhé no2zlolip spEy holes añd lhe inmédiale a¡ea around the spEy holás rehain cl6an and l¡é6 ol @|bon depG¡ls. This leaves the cap nut seai suffacB as lhé ónly sudas which requires a thorouqh cleañinq.
cleán rhe injeclor cáp nut surface 6lotl@s: lnslalllhé s¿áling plug,9998251, inlo th¿ u¡it iñiector bore ol the cyl ndér héád io pfaént dirt and debris foñ entering lhe bo€,
1. Fen@ lhe two Ojiñgs foñ the ¡njector ánd d¡scard th€ O{ings.
2. Cov€r lh€ O{ ns g@@es and the conplete arca between the qroóvés with lapá o¡ equi€lenl lo prdent conlaminanls lrom q6lling inlo lhé iniecloi
3. Cdérlhé opéning lorll)e elect.i€l 4- Sr¡de a shoii séctióñ of 6 mm {0.25 inch) lD hose over lie injeclor nozzle lip untl il cov€B apprcÍmalely halt lhe nozzle 1¡p length. Thls is ñécassary ro prcrecl lhe no¿le sp€y hobs nom dámaséwhen cl€aning lhe cap ñul sal suface.
FisúÉ ¡r23
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