BMW M60

The BMW M60 is a V8 petrol engine of the automobile manufacturer BMW. The motor type has been developed since 1984, starting in September 1992, he came in different models in the sale. Among them he would in the BMW 730i, BMW E32 and BMW E38 740i/740iL, 530i, 540i BMW E34 830i and in, BMW E31 840i installed. The M60 was used in other cars used, of which especially the De Tomaso Guarà is worth a mention.

Construction

Design Features

The one with the help of CAD software is very compact and rigid engine block constructed with a cylinder angle of 90 ° is made of lightweight cast aluminum, as well as the oil pan and the cylinder head; thus the complete motor with attachments weighs only 210 kg, the naked block even just 25 kg and each of the two cylinder heads 30 kg. The cylinder head cover are made of a magnesium alloy. He has per cylinder bank has two overhead camshafts with mass balance ( eccentrically offset sections to compensate for engine vibration ), which are driven by maintenance- free and self- exciting duplex chains. Between the two rows of cylinders, the intake manifold is made ​​of reusable plastic (nylon), whose smooth plastic surfaces are characterized by their low flow resistance. The connecting rods are made by sintering in the piece and are specifically broken (→ " cracked connecting rods " ) in order to guarantee high accuracy. Per cylinder design uses four valves for the gas exchange that are moved via bucket tappets with automatic hydraulic lash adjusters. Spark plugs sit in the middle between the four valves per cylinder, and are driven by a static spark distribution in which each spark plug has its own ignition coil. the motor controller took over the full digital Bosch Motronic 3.3, the using the mixture of the oxygen sensor ( catalyst versions) and double knock control controlled. For the export market (mainly Eastern Europe and Asia), versions were sold without a catalyst.

Weaknesses

The M60 must be factory- ceramic catalysts in which frequent the newer ( round ) can collapse variants of aging and then plug the exhaust; accessory retailers but also metal catalysts are available. The bolts of the oil pump may become detached during operation and fall into the lower oil pan, so they should be checked immediately upon purchase for tightness and then also permanently secured by screws securing. This eliminates a regular check.

At the beginning of the production time of the M60 fell mainly in the U.S. and the UK by engine damage that is caused by inferior, sulfur-containing gasoline; by the Nikasil coating on the cylinder walls was washed off and attacked the aluminum of the engine block. BMW corrected this error in later M60- batches for the U.S., the successor M62 and M60 in the ECE exchange through the use of a different alloy ( Alusil ) for the cylinder crankcase, which made a coating of liners superfluous. Owners of older engines could be converted in the U.S. their machine on a goodwill, if they had not passed the 100,000 - mile mark.

Alpina

Alpina built on the basis of a M60B40 same displacement, tuned engine, the B10 was 4.0 ( sedan and Touring) and in B11 4.0 and some B8 4.0 used in the BMW Alpina for Japan, with an output of 232 kW.

In addition, there was a hubraumvergrößerte second stage with 4619 cc that came ( Sedan and Touring ) for use in B8 4.6, and in 4.6 B10. This variant in the two B10 an output of 250 kW and B8 due to a changed exhaust system 245 kW.

Data

Use

M60B30

M60B40

Alpina F2

• Motor model ( V engine )
• BMW engine