Question 13
(a) (i) Identify the unit shown in the sketch below.
(ii) Name the parts labeled V, W, X, Y and Z..
(b) (i) State one function of the parts labeled W, X and Y
(ii) State the function of a thermostat.
Observation
The expected responses are given below:
(ii) V: thermostat housing
W: valve spring
X: valve cover
Y: rocker shaft
Z: pushrod
Y: It holds the rocker arm in position.
X: It protects the upper part of the cylinder head.
(ii) The thermostat allows for quick warm-up of the engine