Identification of the Engine Oil Leakage

Identification of the Engine Oil Leakage Points : Problems in internal combustion engine, Identification of the Engine Oil Leakage, Excessive Oil Consumption, Oil Leakage (Visual), Crankcase Pressurization Oil Leaks, Oil Leakage (Visual Upon Examination, Oil Consumption, Driving Conditions, Fresh oil on any engine housing usually washes the dirt from that part has is an excellent indication that oil is leaking from that area, Washed areas on the ventilator side of the chassis usually are caused by oil being blown or sucked out of the crankcase. It is surprising how much oil can be lost through a small leak. One drop of oil every hundred feet causes an oil loss of a quart per thousand miles. Note how the center of the road is covered with oil from r external leaks and you will realize the need for checking this loss. Note that these drippings are much more dense on an upgrade, due to blow by pressure forcing the oil through defective gaskets and bearings. Excessive Oil Consumption Oil can be consumed in the combustion chamber or lost through leak. If the engine actually is burning oil, blue- gray smoke will emerge from the exhaust pipe whenever the engine is accelerated; especially after it has idled for a short period of time. Fouled spark plugs are a good indication that oil is being burned in the cylinders.

Oil can pass into the combustion area in only four ways. It car’ pass the piston rings, the valve guides, or the vacuum booster pump or it can pass through defective crankcase ventilation system. Leaks can be caused by broken on improperly installed gasket, by excessive crankcase ventilation system. The vacuum at the outlet can suck enough oil vapors from the crankcase to cause a noticeable increase in oil consumption. Oil Leakage (Visual) External oil leaks can be divided into two groups and usually occurs at the following locations: Engine Oil Pressure Leaks Rear Engine Main Oil Seal
Oil Pressure Gauge Flexible Line
Oil Cooler & Oil cooler Hoses
Block to Oil Filter Housing Hose (non-oil cooler)
Oil Filter Housing Bases “0”: Ring
Various Copper Washer & Brass Plug Fitting Locations Crankcase Pressurization Oil Leaks Side Plate Cover Gaskets
Front Timing Cover Oil Seal & Gasket
Oil Pan Gasket
Valve Cover Gasket Oil Leakage (Visual Upon Examination Internal oil leaks, although not very common, can occur usually into the cooling system, although a more common problem is for the coolant to enter the oil pan. The usual cause, in either instant, is either a cracked cylinder head or a head gasket failure. Oil Consumption This may or may not be seen as a “bluish gray” smoke at the exhaust tailpipe and will depend upon the actual amount of oil being consumed. Value Guides and Valve Stems Value guide and Value stems will contribute considerable to excessive oil consumption. Driving Conditions Oil consumption can vary under different diving conditions consider the following figures to be a generalization:
Under 300 miles per quart-very poor
3 50-500 mile — poor
599-600 miles — fair
600-750 miles — good
750-1000 miles — very good
1000 miles & over — excellent \