When did the Mercedes M102 engine come out?
The M102 engine came out to replace the old M115 engine in 1980. This four cylinders engine was built entirely from scratch. It had new cast iron cylinder block, aluminum 8-valve cylinder head with one camshaft. Late engines (until 1984) didn’t have hydraulic tappets/lifters.
What kind of engine does a Mercedes Benz W124 have?
An update of the M102.920 engine for use in the W124 chassis Cubic capacity: 1,997 cc (2.0 L) Power output: 80 kW (109 PS; 107 bhp). Similar to M102.921, different carburettor, single-belt drive for alternator, power steering pump and air-conditioning compressor (where fitted). Hydraulic aided valvetrain . Power output: 77 kW (105 PS; 103 bhp).
Can you change spark plugs on Mercedes M104?
In the case of the M104 engine, however, it’s quite easy to change the spark plugs. On the M104 engine, Mercedes has eliminated the use of a distributor by integrating a wasted spark ignition setup with three coils.
When did the Mercedes M102 timing chain change?
Mercedes-Benz updated the M102 engine to receive a double row timing chain in 1988. These chains are a lot tougher, and under normal conditions, should last the “lifetime” of the engine. “Lifetime” can be very roughly defined as 200,000 miles. M102 engine – single-row timing chain.
When did the Mercedes Benz M102 engine come out?
The M102 engine came out to replace the old M115 engine in 1980. This four cylinders engine was built entirely from scratch. It had new cast iron cylinder block, aluminum 8-valve cylinder head with one camshaft. In 1984 engine got new light connecting rods and crankshaft as well as hydraulic tappets/lifters and the new style oil filter.
What kind of engine does a Mercedes W123 have?
M102.920 (1980 -1986) – the first carbureted version for Mercedes W123. Carburetor is Stromberg 175 CDT, compression ratio is 9. M102.921 (1982 -1984) – 920 with another camshaft and Stromberg 175 CD carburetor. This engine is for Mercedes 190 W201. M102.922 (1985 -1990) – upgraded version with new lighter crankshaft and conrods for Mercedes W124.
How big is the intake valve on a Mercedes M102?
Late engines (until 1984) didn’t have hydraulic tappets/lifters. The diameter of intake valves is 43 mm and exhaust valve – 39 mm. The 2.0l M102 from the beginning had the single-strand chain which was very unreliable, but from 1987 this chain was replaced by a double-row chain, and it operates very well.
What should the fuel pressure be on a W124?
For W124s running the KE Jetronic fuel delivery system (ie 200e, 230e, 300e etc), the minimum expected pressure from the fuel delivery system is 3.5 bar in order for the injection valves (injectors) to work properly.