1 Hiring a mechanic to replace a timing chain typically costs $300-$1,000, depending on the make and model of the vehicle, its age and whether the work is performed at a dealership or an independent shop.2  Purchased separately, a timing chain typically costs $50-$250 or more. Timing chains are often sold in kits which contain additional smaller parts that can be used in the repair. 2  Prices for kits vary considerably, from $20 to $1,000 ,as replacement parts for some original equipment manufacturers simply cost more to build than for others.
The deepest hole ever drilled by humans (Russians) is the âKola Super deep Boreholeâ, on Kola Peninsula in the North West corner of Russia, located near Finlandâ. Russian scientists had to invent new ways of drilling, due to the depth of that area. A number of bore holes were drilled by branching from a central hole. The bore hole which reached 12,262 meters (40,230 ft) in 1989 is the deepest hole ever drilled, and the deepest artificial point on the earth.
The Challenger Deep is the deepest known point in the Earth 's seabed hydrosphere, with a depth of 10,898 to 10,916 m (35,755 to 35,814 ft) by direct measurement from submersibles, and slightly more by sonar bathymetry (see below).t is in the Pacific Ocean, at the southern end of the Mariana Trench near the Mariana Islands group. The Challenger Deep is a relatively small slot-shaped depression in the bottom of a considerably larger crescent-shaped oceanic trench, which itself is an unusually deep feature in the ocean floor.