Table of contents: Basic operations 🠇 Additional operations 🠇
1. If, from the date of purchase of the vehicle, you strictly adhere to the routine maintenance schedule as prescribed in this Manual and frequently check the levels of working fluids and the degree of wear of the most susceptible components, the engine will remain in relatively good working order. Therefore, the need for additional work will be reduced to a minimum.
2. It happens that poor engine performance is a consequence of insufficient routine maintenance. This is most likely if you purchase a used car that has not undergone regular and frequent inspections. In such situations, it may be necessary to perform additional operations beyond the scope of routine maintenance.
3. If engine wear is suspected, a compression check can provide valuable information about the performance of the main internal components (see chapter 2B or 2B). Such a check can be used as a basis for determining the scope of work required. For example, if a compression test indicates significant internal engine wear, a major overhaul is necessary first. In this case, the normal maintenance described in this paragraph will not provide any significant improvement in the engine's dynamic performance, but will only waste time and money.
4. The sequence below is the most frequently required operations to improve the dynamic characteristics of a poorly running engine
Basic operations
- a) Clean, inspect and test the battery (see "Weekly checks"),
- b) Check all engine related fluids (see "Weekly checks").
- c) Check the condition and tension of the accessory drive belt (paragraphs 18 and 13).
- d) Check the condition of the air filter element and replace it if necessary (paragraph 20).
- d) Check the fuel filter (paragraph 19).
- e) Check the condition of all hoses and check them for leaks (paragraph 5).
- g) Check the idle speed and stall prevention speed (1.8 L and 1.9 L engines) (paragraph 11).
5. If the above operations do not produce the desired effect, perform the additional operations listed below.
Additional operations
All operations listed above, plus the following:
- a) Check the charging system (chapter 5A).
- b) Check the pre-heating system (chapter 5B).
- c) Check the power supply system (chapter 4B or 4B)
