Discussion On : Component Identification

Component Identification

 Engine housing:-

·         Engine block ( crankcase and bedplate )

·         Cylinder head

·         Cylinder head cover

·         Oil pan

·         Gasket

                                   

Engine block :-

·         Made from an aluminium die-casting

·         Consist of the crankcase and bedplate.

Crankcase and bedplate :-

·         Crankcase feature cast iron cylinder liners

·         Webs between two cylinders on the deck on the block have a grooved cooling passage.

·         Coolant flow along the grooves from one side of the crankcase to the other, thus enhancing cooling of these area.

·         Five oil return ducts on the exhaust side

·         Five oil return ducts on the intake side

NO	EXPLAINATION
1	COOLING DUCT
2	CYLINDER LINER
3	GROOVED COOLING PASSAGE
4	OIL RETURN DUCT, EXHAUST SIDE
5	OIL RETURN DUCT, RETURN SIDE

Crankshaft :-

·         Lightweight design, at 20.3 kg

·         Approximately 3 kg lighter than the crankshaft in N54 engine

·         Made of cast iron ( GGG70 )

·         No incremental wheel installed on the crankshaft

·         Counterweight are arranged asymmetrically

NO.	EXPLAINATION
A	COUNTERWEIGHT
1	MAIN BEARING JOURNAL 7
2	OIL HOLE FROM BIG – END BEARING TO MAIN BEARING
3	OIL HOLE FROM MAIN BEARING TO BIG - END BEARING
4	BIG – END BEARING JOURNAL , CYLINDER 4

Pistons and rings :-

·         A full slipper skirt piston with a diameter of 82.5 mm.

·         1^st piston ring- plain rectangular compression ring with a chrome-ceramic coating on the contact surface

·         2^nd piston ring- is a tapered faced Napier type ring

·         Oil scrape ring- designed as a steel band ring with spring that is also known as VF system

NO	EXPLAINATION
1	PLAIN RECTANGULAR COMPRESSION RING
2	TAPERED FACED NAPIER RING
3	VF SYSTEM RING
4	STEEL INLAY FOR FIRST PISTON RING
5	GROOVE FOR FIRST PISTON RING
6	GROOVE FOR SECOND PISTON RING
7	GROOVE FOR OIL SCRAPER RING
8	HOLE FOR LUBRICANT OIL DRAIN
9	GRAPHITE COATING

Connecting Road and Bearing :-

·         Size – 144.35 mm

·         New features is the specially formed hole in the small end of the connecting road.

·         This formed hole is machined wider on the lower edges of the wrist pin bushing / bore

 

NO	EXPLAINATION
1	BUSHING
2	CONNECTING ROAD

Oil pan :-

·         Made up of aluminium casting

·         Oil deflector and the intake pipe to the oil pump are designed as one component

·         To facilitate attachment to the bedplate , the oil return ducts are designed so that they extend over the oil deflector.

NO	EXPLAINATION
1	OIL PUMP
2	OIL RETURN DUCTS , INTAKE SIDE
3	BEDPLATE
4	OIL DEFLECTOR
5	INTAKE MANIFOLD WITH OIL SCREEN FILTER
6	OIL RETURN DUCTS , EXHAUST SIDE