DETROIT-16V-71RC-457hp-2 stroke diesel

mesin disel 16 cylinder 2 langkah ini merupakan ciri kas buatan general motor(GM)dimana suplai pemasukan udara disuplai melalui blower udara(super charger)yang dikaitkan dengan putaran cam shaft dan sistim pembuangan udara diatur dengan dobel rocker arm,dobel valve bridge,4 exhaust valve dan satu rocker arm injector,menggunakan governor hidraulis ..mesin ini biasa digunakan pada kapal untuk penyediaan lstrik dengan daya 300 kw untuk generator nya,berikut ini data pembangkit listrik dan mesin...


GENERATOR:DAYA=300kw,VOLT=450 vac,PHASE=3phase,FREKUENSI=60 cycle

MESIN:
type.........................16v-71rc
max.power....................457 hp
speed........................1800rpm
bore/stroke..................4.25/5.00 inches
compression ratio............17:1
total displacement...........1134.8 cubic inches
main bearing.................10
brake mean effective pressure.88 psi

TABLE OF SPECIFICATIONS&CLEARANCES.
CYLINDER BLOCK:
block bore.........................4.6260"-4.6270"
cylinder liner counterbore.........5.0460"-5.0510"
main bearing bore..................4.8120"-4.8130"

CYLINDER LINER:
outside diameter...................4.6250"-4.6260"
inside diameter....................4.2495"-4.2511"
clearance-liner to -block bore.....0.0020"-.0030"
out-of-roundness--inside diameter..0.0020"-.0030"

CRNKSHAFT:
journal diameter-connecting rod....2.9990"-3.0000"
journal diameter main bearing......4.4990"4.5000"

MAIN BEARING:inside diameter.......4.5016"-4.5040"
clearance bearing to journal.......0.0016"-.0041"

CONNECTING ROD:
inside diameter upper bushing......1.5015"-1.5020"
side clearance between rods........0.0080"-.0160"
connecting rod BEARING diameter inside....3.0014"-3.0034"
clearace bearing to crankshaft journal....0.0014".0044"

PISTON & RING PISTON:
at top diameter...........................4.2230"-4.2260"
at skirt bottom...........................4.2428"-4.2450"
clearance piston skirt-to liner...........0.0045"-.0083"
GAP RING PISTON:
gap top ring..............................0.0230"-.0380"
gap rings 2,3,4...........................0.0180"-.0430"
gap oil rings.............................0.0080"-.0230"

PISTON PINS:
piston pin diameter.......................1.4996"-1.5000"
pin-to piston bushing clearace............0.0025"-0.0034"
pin-to rod bushing clearance..............0.0015"-0.0024"
piston pin BUSHING INSIDE diameter........1.5025"-1.5030"

CYLINDER HEAD:
exhaust valve insert counterbore diameter....1.2600"-1.2610"
exhaust valve seat outside diameter..........1.2615"-1.2625"
valve head to cylinder head..................0.0230"-0.0060"
exhaust valve guide height above cyl.head....0.8800"-0.8800"
inside - diameter............................0.3125"-0.3135"
clearance--stem-to-guide.....................0.0020"-0.0035"

STANDARD BOLT AND NUT TORQUE SPECIFICATIONS:
injector control shaft bracket bolts............1/4-20-torque.10-12lb-ft
cam follower guide bolts........................1/4-20-torque.12-15lb-ft
air box cover bolts.............................5/16-18-torque.8-12lb-ft
oil pan bolt....................................5/16-18-torque.10-12lb-ft
exhaust valve break adjusting screw lock nut....5/16-24-torque.20-25lb-ft
adler gear bearing retaining bolt...............5/16-24-torque.24-29lb-ft
injector clamp bolt.............................3/8-16-torque.20-25lb-ft
camshaft end bearing bolt.......................3/8-16-torque.35-40lb-ft
flywheel housing bolt...........................3/8-26-torque.25-30lb-ft
crankshaft frot cover...........................3/8-16-torque.25-30lb-ft
exhaust manifold outlet flang nuts(brass).......3/8-24-torque.25-30lb-ft
water manifold cover nuts.......................3/8-24-torque.20-25lb-ft
camshaft intermediate bearing lock screw........3/8-24-torque.15-20lb-ft
balance weight to camshaft gear bolt............3/8-24-torque.15-18lb-ft
balance to camshaft gear plain nut..............3/8-24-torque.18-22lb-ft
blower drive support bolt and nuts..............3/8-24-torque.25-30lb-ft
balance weight to camshaft gear slotte3d nut....3/8-24-torque.28-32lb-ft
accesory drive hub/disc to camshaft gear bolt...3/8-24-torque.45-50lb-ft
flywheel housing bolt...........................3/8-24-torque.25-30lb-ft
exhaust manifold nuts...........................7/16-20-torque.30-25lb-ft
connecting rod nut (lubrite)....................7/16-20-torque.60-70lb-ft
connecting rod nut (plain)......................7/16-20-torque.65-75lb-ft
rocker arm bracket bolts........................1/2-13-torque.90-100lb-ft
idler gear and dummy hub bolt...................1/2-13-torque.80-90lb-ft
rocker shaft break bolt.........................1/2-13-torque.90-100lb-ft
flywhell housing bolt...........................1/2-13-torque.90-100lb-ft
crankshaft front cover..........................1/2-13-torque.80-90lb-ft
flywheel bolts..................................9/16-18-torque.180-190lb-ft
main bearing bolt...............................5/8-11-torque.180-190lb-ft
cylinder head bolt/nut..........................5/8-11-torque.175-185lb-ft
crankshaft end bolt.............................1-14-torque.290-310lb-ft
camshaft nut....................................1-1/8-18-torque.300-325lb-ft
blower drive gear hub nut.......................1-7/16-16-torque.50-60lb-ft

GRAFIK PEMERIKSAAN SISTIM BERDASARKAN JAM KERJA MESIN:
-SETIAP MESIN AKAN DISTART PERIKSA:
1.engine oil
2.coolant and filter
3.fuel tank,fuel strainer and filter
-SETIAP 8.JAM:
1.air cleaner
-SETIAP 50.JAM:
1.air starter system
-SETIAP 100.JAM:
1.tacho meter drive
-SETIAP 200.JAM:
1.throttle control
-SETIAP 300.JAM:
1.fuel strainer and filter
2.air cleaner and air starter system
-SETIAP 500.JAM:
1.hose,coolant system and filter
2.heat exchanger electrodes and core
3.over speed governor
4.flexible coupling
-SETIAP 1000.JAM:
1.coolant and filter
2.heat exchanger electrodes and cor
3.air box drains
4.crankcase breather
5.blower screen
6.TUNE-UP engine
SETIAP 2000.JAM:
1.air starter system
-SETIAP 4500.JAM:
1.ALTERNATOR