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.
Near the southern tip of the crescent, there is a small slot-shaped area called the âChallenger Deep.. With a measured depth of approximately 36,000 feet below sea level, a journey to the bottom of the Challenger Deep is nearly seven miles, making it the deepest known place on Earth. To give you an idea of just how deep the Mariana Trench is, if Mt. Everest were placed in the deepest part, there would still be over a mile of water above its peak!