PERAKITAN mesin diesel MWM tbd440-8k-1030kw

Langkah awal setelah pengukuran bor for main bearing,crankshaft,camshaft,pin piton bus,bor of connecting rod bearing,piston,pin piston,liner,rocker arm bus,rocker shaft,valve in/ex,gap/side ring piston.langkah berikutnya....


langkah 1.pemasangan main bearing
2.pemasangan crankshaft
3.pemasangan ring piston ke piston
4.pemasangan piston ke connecting rod
5.pemasangan liner ke cylinder frame/blok mesin
6.masukan piston ke liner dan pemasangan connecting rod pin
7.pemasangan oil pump + sistim
8.pemsangan camshaft
9.gear camshaft
10.crankcace/calter
11.cylinder head + sistim
12.injection pump,nozzle + sistim
yang perlu diperhatikan pada waktu pemasangan komponen adalah clearances,torsi schedule for major bolt(kekencangan baut2) .
TORSI SCHEDULE:-main bearing cover mounting :long bolt-20Nm+4x60*(derajat)
:short bolt-20Nm+2,5x60*(derajat)
-conrod bearing cover 1st stage/2nd stage:15/36+1x60*
-cylinder head:20Nm+3,5x60*(derajat)
-flywheel:40/50Nm+1x60*(derajat)
BEARING RADIAL CLEARANCE:-main and thrush bearing:0,20-0,279mm
-connecting rod bearing :0,20-0,25 mm
-piston pin bearing :0,1-0,14 mm
-camshaft :0,072-0,161mm
-rocker arm :0,040-0,072mm
-valve stem,in/ex :0,05-0,108mm
-piston andcylinder on lower stem end:0,337-0,397mm
AXIAL CLEARANCE:-thrust bearing :0,11-0,25mm
-connecting rod bearing:0,7-0,835mm
-camshaft :0,2-0,3 mm
-rocker arm :0,1-0,3 mm
GAP CLEARANCE :-piston ring :0,9-1,15 mm
-helical spring ring:0,9-1,15mm
LONGITUDINAL PISTON RINGS IN CLEARANCE,GROOVE 1:0,11-0,142mm
                                                                                        GROOVE 2+3:0,07-0,102mm
                                                                                        GROOVE 4:0,043-0,078mm