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Unit 22 Engine lubrication

1. Memorize the new words and word-combinations:

1.requirement

2.lubrication

3.to rub

4.friction

5.to avoid

6.bearing

7.big-end bearing

8.sump

9.dipstick

потреба

змазка

терти

тертя

уникати

підшипник

підшипник великої головки

грязевідстійник

штиковий показник рівня

2. Find the right translation:

1.масляний насос

2.клапанний розподільний механізм

3.підшипник великої головки шатуна

4.масляний канал

5.ланцюг приводу розподільного валу

6.масляні канали

7.суттєва вимога

8.підшипник клапанного важеля

a) essential requirement

b) oil pump

c) oil pipe

d) oil delivery galleries

e) bearing to rocker arm shaft

f) big-end bearing

g) timing chain

h) valve operating mechanism

3. Read and translate the text. Engine lubrication

Another essential requirement of an engine is lubrication, that is, the continuous supply of oil to all moving parts.

Working parts of an engine are made of metal, and they have to fit closely together if they are to function properly. When any two surfaces rub together there is «friction» and where is friction heat is produced. In cold weather we rub our hands together to keep them warm, and it is the friction between the surface of one hand and the other that produces the desired warmth. In an engine this extra heat must be avoided or the parts will wear out quickly and become damaged. Oil greatly reduces friction and allows the parts to run smoothly together.

An oil reservoir, or sump, is provided at the bottom of the engine, and from there the oil is pumped under pressure through various pipes and passages to the moving parts such as camshaft and crankshaft bearings, big-end bearing, pistons and valve operating mechanism. The oil in the sump can be checked by a dipstick, and it must be maintained at the correct level by adding more when necessary.

4. Answer the questions:

1) What is the purpose of the lubricating system?

2) How does this system work?

3) What are the working parts of engine made of?

4) What can cause wear of parts?

5) How can we check the oil in the sump?

5. Say with one word:

1) friction-reducing substance placed between moving parts

2) metal reservoir bolted to the bottom of a crankcase or automatic transmission that holds oil or fluid

3) any device or surface area that supports the moving parts of the car

Unit 23 Clutch

1. Memorize the new words and word-combinations:

1.assembly

2.remainder

3.to engage

4.flywheel

5.to revolve

6.plate

7.lining

8.edge

механізм

решта

займати

маховик

крутится

пластина

накладка

торець

2.Choose the right translation of the word-combinations:

1. натискний диск зчеплення

2. натискний диск, навантажений пружинами

3. педаль зчеплення

4. важільний механізм

5. механізм зчеплення

6. ходове колесо

7. задній торець

8. ведомий диск зчеплення

9. фрикціонна накладка

10. зовнішня кромка

a) clutch assembly

b) road wheel

c) rear end

d) clutch plate

e) friction lining

f) outer edge

g) (clutch) pressure plate

h) spring-loaded pressure plate

i) clutch pedal

j) pedal linkage

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