TechAutoStuffs

Most mechanical transmission fall in three basic categories with three elements each, namely- (1) Clutch, Gearbox and Live Axle, (2) Clutch, Gearbox and Dead Axle, (3) Clutch, Gearbox and Axle-less transmission Clutch, Gearbox and Live Axle --> The engine is in the front with its crankshaft parallel to the axis of vehicle.The drive is transmitted from engine through a clutch and a short shaft 'c' to the gearbox ('c' is almost always integral with the primary gear in gearbox, but sometimes is a separate component with universal joints).From the gearbox the "Propeller Shaft"-having U joints at both ends and a sliding joint at front end-takes the drive to rear live axle.Live axle is the one through which the drive is transmitted while a dead axle is the one through which the drive is not transmitted.Bevel or worm gearing (g) within the axle turns the drive through  90°, and differential gears divide it equally between the two drive shafts, or  ha...

The internal combustion engine, as used in road vehicles, has the following requirements and characteristics— (1) To start it, some form of external energy must be applied. (2) Its maximum torque is small compared with that of a steam engine or electric traction motor of the same maximum horse power. (3) Its maximum power is developed at a relatively high speed – ranging from about 1700 rev/min for heavy commercial vehicles to 12000 rev/min and more in racing cars. In consequence, it must be used in conjunction with a transmission that differs in many respects from those of either steam- or electrically-powered vehicles. Various methods have been used for starting engines – for instance, from energy stored in a spring or flywheel, or chemical energy in a cartridge – but the general rule of course is to use a battery-electric starter. During starting, provision should be made to disengage engine from the drive line and consequently engaging the drive should be smooth a...

They are like shining wings..sparkling jewels..the ultimate expression of an automobile...emotions and impressions are focused on them..their light alloy material is seductive..WHEELS are the finest feature of any car.

SHOCK ABSORBERS This video gives a better understanding on how a shock absorber is made.As in the previous post basics of a shock absorber were covered in a more theoretical approach so you may want to refer that first to absorb things easily( Shock Absorbers ).But let us revise some things, wheel vibrations causes the piston in the pressure tube to move up and down and force oil through the valve which then absorbs energy and dampens the vibrations.The mechanical energy is, thus, converted into heat energy and then dissipated into the atmosphere as a result reducing the bounce. Here is the construction of a twin tube type shocker.Both the reserve tube and the pressure tube made of steel sheets being formed into a tube by rollers one after other and welded and then cut into shock absorber lengths.One thing is to be noted that the reserve tube is compressed at the ends so as to house more oil.The valves through which oil flows are made by sintering (powder metallurgy process) ...

A BRIEF HISTORY  In the early 1900's, cars still rode on carriage springs. After all, early drivers had bigger things to worry about than the quality of their ride - like keeping their cars rolling over the rocks and ruts that often passed for roads. 

Often students and other automotive enthusiasts don't get