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The internal parts of the engine wouldn’t last long unless a built lubrication system was present. Behind the camshaft there is a gear pump that pumps the motor oil through both tubes and pipes from the engine block to both cylinder heads. On the left side of the crake case there is an oil pressure switch that turns on the light on the dashboard when there is insufficient oil in the system. This light normally goes out when the engine has been running for a while and the oil has come under pressure.
When the oil is about 15.000 km it has done its work and it is necessary to refresh it. Change the oil in any case not later than that, all the wear it had and the contamination ensure that the oil loses its lubrication and excessive wear is the result.
If your car’s mileage is low, then the maximum kilometres is not applicable. The quality of the oil decreases over time. The best is to change the oil once every 2 years. The engine and the gearbox have both a separate lubrication system. The gearbox oil should be replaced every 25.000 km. (See 3A.5)
The sump capacity of the 602cc 2CV engine is 2.2 litres. The content of the filter is 0.2 litres. If you change the oil make sure to have enough fresh oil. The prescribed type of oil is 10W-40. When renewing the oil also renew the oil filter.
- Change the engine oil regularly, the default refresh interval is 15,000 km. if driving in adverse conditions, such as short trips or elevated temperatures, then you should do it more often. It is better to change the oil when the engine is warm because the oil is thin and probably has dirt throughout. -Place a pan under the drain plug. It is located under the engine, more or less in the middle of the ribbed sump. Clean the areas around the drain plug, take the plug out and let the oil drain at least ten minutes. Clean the drain plug thoroughly, screw it back with a new copper gasket ring and tighten to 35-45 Nm. - Replacing the oil filter is the easiest with a strap or a special oil filter wrench. Alternatively, a long pin or screwdriver can be put through the filter in order to use it as a lever to loosen it. Please note that some oil (0.2 litres) will flow from the filter as soon as it is lose. - Clean well the supporting area of the filter. Lubricate the seal of the new filter with engine oil. Screw the filter until it just touches the engine unit, and turns it half way by hand. Do not use wrenches or pliers when installing it. Beware that if you assemble the filter too tight, the filter (not visible) will break. - Fill the engine with 10W-40 oil just under the “max” mark of the warning rod. Let the engine run till the normal operating temperature is reached and check if there is leakage form the filter.
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