Answer for What are the possible reasons because of which the engine gets excessively hot ?

(a) Lack of water in the radiator.
(b) Blockage of the pipes of the radiator.
(c) Fan belt could be loose or slipping.
(d) Water pump could be out of order.
(e) Lack of engine oil. (f) Ignition timing may not be right.
(8) Excess gathering of carbon in engine.
(h) When the manifold heat control valve is held up in closed condition.
(i) Engine bearing may be tight.
(j) Exhaust passage may be blocked.
(k) Stone may get blocked in the water jackets.
(j) Water may be leaking.