Nissan BD30T Valve Adjusting Procedure, Valve Lash, Valve Train Parts Specifications,

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Nissan BD30T Valve Adjusting Procedure, Valve Lash, Valve Train Parts Specifications, Page 1 of 5 CYLINDER HEAD, ~!PJ9-11(0.9-1.1,6.5.8.01~Adjusting screwII Rocker…
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Nissan BD30T Valve Adjusting Procedure, Valve Lash, Valve Train Parts Specifications, Page 1 of 5 CYLINDER HEAD, ~!PJ9-11(0.9-1.1,6.5.8.01~Adjusting screwII Rocker coverNissan BD30T Rocker Cover Gasket Nissan BD30T Rocker ArmValve cotterValve SealsrNissan BD30T Valve Springs,Lower seatCylinder head bolt Nissan BD30T Cylinder Head Bolts !PJ:Refer to "CYLINDER'0''''''''00HEAD-(Oo.V.hl". So,,;,,)".Nissan Head Gasket Cylinder BD30T head gasket~ Cylinder headNissan BD30T Intake ValveNissan BD30T Exhaust Valve~Always replace when disassembledNissan BD30T Engine Parts Contact email: EngineParts@HeavyEquipmentRestorationParts.com !PJ N.m (kg.m, ft.lbl Phone: 269 673 1638 Website: www.HeavyEquipmentRestorationParts.com SEM693CEM-12Nissan BD30T Valve Adjusting Procedure, Valve Train Parts Specifications, Page 2 of 5 SERVICE DATA Valve AND Lash, SPECIFICATIONSInspection and Adjustment COMPRESSION PRESSURE Unit:kPIl (bar, kg/em', psi)/rpmStandard2,942 (29.4,30,427)/200Minimum2,452 (24.5, 25, 356)/200Valve guide Nissan BD30T Valve Guide Specifications Unit:StandardValve guide outside diameter Differential limit between cylindersCYLINDER294 (2.9, 3, 43)/200HEADUnit:mm (in)Limit Head surface distortion Nominal cylinder head heightCylinder head valve guide hole diameter0.2 (0.008) 89.7 (3.531)VALVEUnit:Valve guide inner diameter (Finished size)Interference fit of valve guide12.033 • 12.044 (0.4737. 0.4742) 8.000 - 8.015 (0.3150 - 0.3156) 12.00 - 12.011 (0.4724 0.4729) 0.022.0.044 (0.0009 - 0.0017) Max. toleranceIntake0.02.0.05 (0.0008 0.0020)0.15 (0.0059)Exhaust0.04.0.07 (0.0016. 0.0028)0.20 (0.0079)Stem to guide clearanceValve deflection Iim it Intake- L -SEM1880.30 (0.0118)Exhaust0.40 (0.0157)Valve springValve head diameter "0" IntakeValves Intake43.5 (1.713)Free lengthExhaust Exhaust Valves38.0 (1.496)Assembled height mm/N (mm/kg, in/lb)Valve length "L" IntakeOut of square 117(4.61)Exhaust Valve stem diameter "d" Intake8.0 (0.315)Exhaust8.0 (0.315)Valve seat angle "0/' Intake 45° Exhaust Valve margin "T" limit1.0 (0.039)Valve stem end surface grinding limit0.2 (0.008)Valve clearance (Hot)IntakeIntake Valve Lash Clearance Exhaust Valve Lash Clearance ExhaustServiceStandardmm (in)T (Margin thickness)mm (in)0.35 (0.0138)EM-2mm (in)mm (in)46.8 (1.843) 42.3/123.6 - 330.5 (42.3/12.6 - 33.7, 1.665/27.8 - 74.3) 2.0 (0.079)Nissan BD30T Valve Adjusting Procedure, Valve Train Parts Specifications, Page 3 of 5 SERVICE DATA Valve AND Lash, SPECIFICATIONSInspection and Adjustment (Cont'd) Nissan BD30T Valve Lifters Tappets VALVE LIFTER AND PUSH RODCYLINDER Unit:StandardValve lifter outer diameter24.960. 24.970 (0.9827 0.9831)Cylinder block valve lifter hole diameter25.000 • 25.033 (0.9843 0.9855)Valve Iifter to lifter hole clearancePush rod bend (T.I.R.)*0.030.0.073 (0.0012. 0.0029) Lessthan 0.3 (0.012)HEAD TO VALVEUnit:0.20 (0.0079)SEM724C0.5 (0.020) StandardNissan BD30T Rocker Arms StandardUnit:mm (in)19.979 - 20.00 (0.7866 0.7874)-BD30T0.06 (0.0024)0.10 (0.003910-0.3 (0.0.01210.60 (0.0236)20.02 . 20.04 (0.7882 0.7890)-Rocker arm Inner diameterClearance between rocker arm and rocker shaft 0.02.0.06 (0.0008. 0.0024)T027B030BD30T0.014 - 0.056 (0.0006 0.0022)0.225 - 0.725 (0.0089. 0.0285)B030 BD30T0.725 - 1.225 (0.0285 0.0482)1.25 (0.0492)ExhaustRocker shaft bend (T.I.R.IB030T027LimitRocker shaftT027LimitIntakeRocker shaft and rocker armOuter diametermm (in)Limit*: Total indicator reading--------DISTANCEmm (in)0.20 (0.0079)0.15 (0.0059)EM-3T0270.255 - 0.745 (0.0100. 0.0293)B0300.755 - 1.245 (0.0297. 0.0490)BD30T1.75 (0.0689)Nissan BD30T Valve Adjusting Procedure, Valve Lash, Valve Train Parts Specifications, Page 4 of 5 ENGINE TUNE-UPENGINE TUNE-UPNissan BD30T Valve AdjustmentCD,CID andBASIC MECHANICAL SYSTEMadjust valve clearancesRETIGHTENING HEAD BOLTS3. Set No. 4 cylinder in top dead center on its compression stroke, and adjust valve clearances @, @, (j) and@.@.CYLINDER1. Run engine until coolant temperature indicator points to the middle of gauge, then stop engine. 2. Remove valve rocker cover. 3. Tighten cylinder head bolts according to the order shown in the figure, starting with the center and moving toward the ends.@,Valve clearance: @ and I ntake 0.35 mm (0.014 in) Exhaust @,@, @and 0.35 mm (0.014 in)CD, CID,- 108 N.m (10 -11 kg-m,(j)Fan beltUsedNew11 - 13 (0.43 - 0.51)9 - 11 (0.35 - 0.43)98 N (10 kg, 22 lb)@CiJ : AdjustingCHECKINGENGINECOMPRESSION(1.5 - 2.0 kg-m, 11 - 14 ft.lb)72 - 80 ft-Ib)Unit: mm (in)Applied pushing forcescrew lock nuts 15 - 20 N.mCiJ : 98Drive belt deflection:PRESSURE1. Warm up engine. 2. Remove glow plate or injection nozzle.Tighten in numerical order. SEM641B4.Install valve rocker cover.SEM370E Nissan BD30T Engine Parts Contact email: EngineParts@HeavyEquipmentRestorationParts.com RETIGHTENING MANIFOLD Phone: 269 673 1638 NUT Website: www.HeavyEquipmentRestorationParts.comA3. Fit compression gauge adapter to cylinder head. Make sure bleeder screw of gauge is closed.Engine frontWARNING:QDo not check the exhaust system untilCiJ : Compression gauge adapterit has cooled off. Otherwise, you may burn yourself.CiJ :For glow plug holeIntake manifold 13 - 19 N.m (1.3 - 1.9 kg-m,SMA653CFor injection hole 54.64 N.m9 - 14 ft-Ib) Exhaust manifold 25 - 29 N.m4.(2.5 - 3.0 kg-m, 18 - 22 ft-Ib)EXHAUSTINTAKE VALVECHECKINGAdjustment should engine is hot.ANDCLEARANCE(5.5 - 6.5 kg-m, 40 - 47 ft-Ib)Install valve rocker cover.DRIVE ADJUSTING15 - 20 N.m (1.5 - 2.0 kg-m, 11 - 14 ft.lb)ANDADJUSTINGBELTS1. Visually damage.inspectforcracksorbe made whileThe belts should not touch the bottom of the pulley groove.To adjust, proceed as follows: 1.. Remove valve rocker cover. 2. Set No. 1 cylinder in top dead center on its compression stroke, and2. Check drive belt deflection by pushing. The belts should deflect by the specified amount.ET-15~Method A:Nissan BD30T Valve Adjusting Procedure, Valve Lash, Valve Train Parts Specifications, Page 5 of 5CYLINDER HEADInstallation (On-vehicle service) (Cont'd) 2. Install cylinder head. Cylinder head identification mark: Identification (on cylindernumber head)EngineFloat markPunch mark2-Nissan BD30T Head Bolt Tightening Sequence, Head Bolt Torque Values 82 3.T027 8030Apply oil to the thread portion and seat surface of bolts and tighten cylinder head bolts using Tool.CAUTION: Tightening procedure 1st: 2nd: Tighten in numerical order.Tighten bolts to 39 - 44 N.m (4.0 - 4.5 kg-m, 29 - 33 ft.lb) Tighten bolts to 54 - 59 N.m (5.5 - 6.0 kg-m, 40 - 43 ft-Ib)3rd:SEM641 B(1) Mark exhaust side of cylinder head and cylinder head bolts with paint asshown. (2) Turn all bolts 90:!::10degreesclockwise. (3) Check that the paint mark of each bolt is facing the front of the vehicle.Engine front@(j)@@@@ Tighten in numerical order.SEM703C4. 5.Apply engine oil and install push rods. Install rocker shaft assembly. Rocker shaft bracket bolt: ~: 20 ~ 25 N'm (2.0 - 2.5 kg-m, 14 - 18 ft-Ib) Adjust intake and exhaust valve clearances temporarily. Refer to section ET.EM-23
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