Question

identify each of the marked items on the diagram below. put the corresponding letter in the space beside the number.

1. rod bearings.
2. connecting rod nut.
3. connecting rod bolt.
4. compression rings.
5. connecting rod cap.
6. oil ring.
7. piston.

match the following terms and identifying phrases.
a. ignition module
d. transmission control module
b. climate control module
e. powertrain control module
c. instrumentation module

1. large, powerful computer that coordinates functions such as engine, transmission, and traction control.
2. uses sensor inputs to control ignition timing and spark - plug firing.
3. small computer that uses sensor inputs to operate a digital dash display.
4. controls operation of the heating, ventilation, and air - conditioning systems.
5. powerful computer used to control and monitor the transmission.

match the following terms and identifying phrases.
a. wheel balancing
d. green valve cap
b. plugging
e. cupping
c. tire rotation
f. shimmy

1. repair practice that is no longer recommended.
2. using lead weights on either side of the tire at specific points.
3. tire wear pattern typically caused by worn shocks or improperly balanced wheels.

Explanation:

1. Rod bearings are usually located near the connecting - rod components. In the given diagram, component K is likely the rod bearings.
2. The connecting - rod nut is part of the connecting - rod assembly, and G is a likely candidate for the connecting - rod nut.
3. The connecting - rod bolt is also part of the connecting - rod assembly, and H is likely the connecting - rod bolt.
4. Compression rings are located at the top of the piston, and A is likely the compression rings.
5. The connecting - rod cap is part of the connecting - rod structure, and I is likely the connecting - rod cap.
6. The oil ring is located below the compression rings on the piston, and B is likely the oil ring.
7. The piston is the main moving part in the cylinder, and D is likely the piston.
8. The powertrain control module is a large, powerful computer that coordinates functions such as engine, transmission, and traction control. So, e.
9. The ignition module uses sensor inputs to control ignition timing and spark - plug firing. So, a.
10. The instrument module is a small computer that uses sensor inputs to operate a digital dash display. So, c.
11. The climate control module controls the operation of the heating, ventilation, and air - conditioning systems. So, b.
12. The transmission control module is a powerful computer used to control and monitor the transmission. So, d.
13. Plugging is a repair practice that is no longer recommended. So, b.
14. Wheel balancing involves using lead weights on either side of the tire at specific points. So, a.
15. Cupping is a tire wear pattern typically caused by worn shocks or improperly balanced wheels. So, e.

Answer:

1. K
2. G
3. H
4. A
5. I
6. B
7. D
8. e
9. a
10. c
11. b
12. d
13. b
14. a
15. e