
Remove the EGR valve and check it for valve-sticking,
deposition of carbon etc. If excess carbon deposits and sticky
valve noticed then it should be cleaned with a suitable solvent,
so that the correct valve seat is ensured.
After cleaning the valve blow air from the bottom side of the
valve and check for any leakage.
To check for the functioning of the EGR valve apply vacuum on
the vacuum connection of the EGR valve. The lift of the valve at
the required vacuum should be achieved.
EGR Valve checking
Содержание SZ 2498
Страница 1: ...Mahindra institute of learning excellence Nasik SZ 2498 ENGINE...
Страница 10: ...Mahindra institute of learning excellence Nasik SZ 2600 ENGINE...
Страница 18: ...GENERAL CONSTRUCTION...
Страница 19: ...Block Replaceable wet type liner Inline cylinder arrangement Chain Drive Orange colour...
Страница 20: ...Cylinder head Height of cylinder head 97 70mm to 98 30mm Min cylinder head height 97 40mm 97 70 98 30 mm...
Страница 22: ...Head gasket position Assemble gasket with lettering facing upward...
Страница 25: ...Piston Piston Re entrant bowl type Max weight difference allowed 5 gms...
Страница 26: ...Piston pin Type Full floating Surface hardened ground Diameter 32 00 mm Weight grading Diameter grading...
Страница 31: ...Liner projection from block surface 0 03mm to 0 09mm Note Check liner projection without O rings...
Страница 34: ...Connecting rod side play 0 10mm to 0 30mm 4 to 12 thou...
Страница 37: ...Main bearing Cap Identification mark i e 1 to 5 is punched on main bearing cap No 1 cap start from fan side...
Страница 38: ......
Страница 40: ...Crank shaft end float Standard 0 10 mm to 0 37 mm 4 to 15 thou Service limit 0 50mm 20thou...
Страница 42: ...Crankshaft bearing removal MST 543 MST 577 Crankshaft bearing pressing MST 544...
Страница 43: ...Cam shaft Axial clearance of cam shaft Standard 0 10 to 0 30 mm Service limit 0 40 mm...
Страница 45: ...Camlobe lift Inlet Exhaust Standard 6 08 mm 6 91 mm Service limit 5 58 mm 6 41 mm...
Страница 47: ...Cam shaft identification On chain drive cam shaft letter CHAIN DRIVE in forged on cam shaft...
Страница 51: ...Valve valve lock Valve spring free length 53 60mm Standard limit 50 60 mm Service limit...
Страница 53: ...Push rod Push rod bent Standard limit 0 25 mm max Service limit 0 40 mm...
Страница 55: ...Temperature sensor Nut...
Страница 57: ......
Страница 58: ......
Страница 60: ...Oil cooler Control the oil temperature Uses engine coolant as a cooling media for hot oil...
Страница 61: ...Oil cooler made by vacuum brazing process Copper traces on surface...
Страница 62: ...Oil cooler stud Torque oil cooler stud with 3 00Kg m to avoid loosening of stud while removing the filter...
Страница 64: ...IMPORTANT ADJUSTMENTS SETTING...
Страница 65: ...Chain timing Chain FIP sprocket Crank sprocket Idler sprocket Cam sprocket Chain tensioner...
Страница 66: ...Oil jet Guide Cam sprocket to FIP Guide FIP sprocket to idler...
Страница 74: ...Tappet setting cold condition Inlet 0 30mm 12 Thou Exhaust 0 45mm 18 Thou...
Страница 77: ...Rocker support bolt Longer bolt are used to secured rocker support above oil holes...
Страница 78: ...While assembling the rocker shaft ensure that lubricating holes will face towards head side...
Страница 80: ...Front end accessories drive SZ 2600PLUS Check frequency...
Страница 82: ...Loosen tensioner pulley nut tensioner bolt to release belt tension...
Страница 83: ...loosen the top bottom mouting alternator mtg bolts on cylinder head...
Страница 89: ...Cylinder head bolt Flywheel bolt 135 40mm to 136 60mm 29 58mm to 30 42mm...
Страница 90: ...Main bearing bolt Connecting rod bolt 89 40mm to 90 60mm Replace all the time...
Страница 92: ...Idling screw Fast idle screw Clamp LFG lever PLA unit...
Страница 93: ...Antistalling screw High idle screw Do not disturb this screw...
Страница 96: ...Gap to be maintained 1 0 0 5 mm...
Страница 98: ...Turbo charger...
Страница 103: ...Exhaust gas recirculation...
Страница 117: ...Vacuum Modulator ECU Throttle Potentiometer...
Страница 118: ...Vacuum reservoir EGR valve New Temperature Sensor...
Страница 119: ...Vacuum line connection at vacuum modulator From vacuum pump To EGR valve From air cleaner From ECU...
Страница 125: ...BS II Nozzle Milky white colour ring Identification of Nozzles of BSII...
Страница 126: ...Features in F I P LDA Increases the fuelling according to the boost pressure developed by turbo charger...
Страница 127: ...Lock timing bolt FBB Ease in FIP timing LFG Avoids the fuelling to become zero during gear changing...
Страница 128: ...Fast idling control device PLA Controls the idling to the set band when AC is on...
Страница 129: ...Potentiometer BS II FIP Gives input of engine load to the EGR ECU...
Страница 130: ...F I P TIMING SZ 2600 Plus...
Страница 131: ...In BSII sprocket Key ways is offset w r t centre line of weight reducing hole Offset...
Страница 132: ...BS 2 Sprocket Timing marks is on 8 th teeth clockwise from keyway 1 2 3 4 5 6 78 8 Timing mark...
Страница 133: ...Procedure for FIP removal of SZ 2600 engine Remove viscous fan drive shroud Remove FIP inspection window cover...
Страница 134: ...Remove R A cover Bring no 1 cylinder to compression stroke...
Страница 135: ...Remove all high pressure pipe Remove first cylinder injector Put MST No 0272 dial gauge...
Страница 136: ...Loosen FIP sprocket lock nut re torque it to 2 5kg m 20 lbs ft Bring no 1 piston exactly at TDC...
Страница 139: ...Torque them to 1 0 1 5 kg m Remove FIP sprocket mounting nut washer...
Страница 141: ...2 5 Sprocket locking pin Slotted pin...
Страница 142: ...Slotted Pin Drawing...
Страница 143: ...Slotted pin used for commonised cast block with CRDI...
Страница 144: ...Locking Pin FIP Sprocket...
Страница 150: ...FIP removal refitment w o special tools Without MST 270 272 if pump has to be removed remove timing cover chain...
Страница 151: ...Cooling system...
Страница 152: ...Water bypass system SZ 2600 Plus...
Страница 153: ...Air intake system...
Страница 154: ...Positive crankcase ventilation system...
Страница 155: ...POSITIVE CRANK CASE VENTILATION Rocker Cover Ladder Frame Sump Oil Separator To Turbocharger Air Cleaner Front End...
Страница 164: ...THANK YOU...