Identification of Connecting Rod Problems

Identification of Connecting Rod Problems Points : identification of connecting rod problems, problems related to connecting rod, problems in internal combustion engines, ic, engine Connecting rods give rise to many engine faults. Small end rap is caused by or worn bush, or pin, or stripped or loose clamp bolt. Big end knock may be due to worn bearing, white metal, which has fatigued and broken up, a blocked oil passage or shells “fretting”, i.e. loosening and wearing against the rod. A ‘seized’ big end bearing can cause a bent connecting rod; the bent rod may hit the bottom of the bore or may touch the camshaft in its maximum sideway position. It can be bent by the offset big end being fitted the wrong way round. It can be twisted during the tightening of the clamping bolt. This usually results in the piston being tilted or given too much thrust to one side. A rod may cause imbalance by not matching the others fitted.

Bending, twisting and braking are the inherent problems of the connecting rod.

I-beam shape has a very high strength-to weight ratio which takes care of the problems of the connecting rod.