ENGINE6-12 TNV DI Service ManualCamshaft and Timing Gear Train SpecificationsIdler Gear Shaft and BushingTiming Gear BacklashInspection Item Standard Limit ReferencePageShaft Outside Diameter 1.8091 - 1.8100 in.(45.950 - 45.975 mm)1.8071 in.(45.900 mm) SeeInspection ofIdler Gearand Shaft onpage 6-82.Bushing Inside Diameter 1.8110 - 4.8120 in.(46.000 - 46.025 mm)1.8140 in.(46.075 mm)Oil Clearance 0.0010 - 0.0030 in.(0.025 - 0.075 mm)0.0069 in.(0.175 mm)Model Inspection Item Standard Limit ReferencePage3TNV82A3TNV84, 3TNV84T,3TNV88, 4TNV84,4TNV84T,4TNV88Crank Gear, Cam Gear, Idler Gear,Fuel Injection Pump Gear and PTOGear0.0028 - 0.0059 in.(0.07 - 0.15 mm)0.0067 in.(0.17 mm)SeeCheckingTiming GearBacklash onpage 6-68.4TNV94L4TNV98, 4TNV98T,4TNV106,4TNV106TCrank Gear, Cam Gear, Idler Gear,Fuel Injection Pump Gear and PTOGear0.0031 - 0.0055 in.(0.08 - 0.14 mm)0.0063 in.(0.16 mm)Lubricating Oil Pump Gear 0.0035 - 0.0059 in.(0.09 - 0.15 mm)0.0067 in.(0.17 mm)Balancer Drive Gear(Only for 4TNV106T)0.0047 - 0.0071 in.(0.12 - 0.18 mm)0.0079 in.(0.20 mm)
