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For New Owners/Newbies
On this page, the underside and the underhood of a TJ are shown and some major parts were named. I explained what they do in a nutshell. If you learn them, they will help you understand the technical information available on www.DailyDrivenTJ.com.
Under the hood
Transfer of Power
Engine -> Transmission -> Transfercase -> Axle -> Wheels
Anti-Sway Bar and Anti-Sway Bar Link
Keeps the body square with respect to the axle. It is also called anti-roll bar. Without it, the Jeep's body will lean/sway significantly more during curves and/or turns.
Axle/Differential (Front and Rear)
Turns the wheels. Differenctial allows different speed of wheels tied to an axle. Ex. When the jeep makes turns, the outer wheels spins faster than the inner wheels, the 'open' differential makes the transfer of power smoother by transfering all the power to the wheel with the least traction. This often creates problems during offroading. To overcome this issue, 'lockers' are installed to lock the differential which eseentially locks two wheels (left and right) to spin at the same rate either going straight or turning (or even when one wheel is air-born).
Holds brake pads and pushes them against the rotor/disc.
It converts carbon monoxide into carbon dioxide.
Holds the axle under the frame rail while allowing vertical movement.
Connected to steering knucles on both side of the axle and drags the wheels left or right.
Transfers power from the transfer case to the front and rear differentials.
Exhaust Pipe (As labeled in the picture above)
Routes exhuast gas toward catalytic converter.
Emergency Brake Line
This is a physical line similar to bicycle brake, just tad bit thicker.
In TJs, the fuel pump assembly containing fuel level sending unit, the pump, filter is one piece and stays in the fuel tank.
Muffles the exhaust noise.
Holds Engine Oil.
Power Steering Gear
A component of power asisted steering system that actually steers.
A connection between the drag link and the power steering gear.
This keeps the engine cool. Automatic transmission vehicles often have transmission cooler built into the factory radiator.
Protects catalytic converter and transfer case.
Starts the engine. Spins against flywheel when engaged.
Centers the axle under the jeep (left & right), attached to the frame rail.
This is where the gear shifting occur.
This allows 4 wheel drive.
If you have any questions or recommendations, please let me know.
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