Cam gears are also refered to as sprockets (just another name). A chain or belt that is driven by a crankshaft gear/sprocket turns the cam gear(s)/sprocket(s). In certain high performance applications there is no chain, there are just gears meshing but that is probably not relevant to your question.
The engine will not run, possibly damaging valves and pistons.
A cam chain tensioner puts pressure on the chain, keeping it taut. If the chain were to not be tight, then it could slip on the gears causing the engine to run rough, or cause engine damage.
cam timing marks are on the timing gears inside the timing case cover the crank timing gears are located on the harmonic balance (big pulley wheel at bottom of engine on front of crank)
The gears keep the cam timing in sequence with the crankshaft. So the valves open when their suppose to and no damage occurs from valve to piston clearances.
The gears keep the cam timing in sequence with the crankshaft. So the valves open when their suppose to and no damage occurs from valve to piston clearances.
Timing belts are usually only used for Overhead Cam Engines ( DOHC or SOHC). The Iron Duke is a overhead valve engine and not an over head cam engine. The Iron Duke has cam gears instead of a chain or a belt.
the variable cam timing (VCT) solenoid on the ZX2 can be found on the same side of the engine as the cam gears are on. The parts of the VCT are located on the exhaust cam and between the two cams
yes
you have to buy and install adjustable cam gears. but if you adjust it improperly you will lose power/gas mileage.
The lifters are underneath the camshaft, they sit on top of each valve, if it's 1.9 liter engine. You must remove the cam, or cams, cam gear ('s). Make sure you make sure the timing chain stays on the exact teeth of the gears, if removing the cam gears. The lifters sit on top of each valve, 8 or 16.
Car Engines
Yes, Mine broke and the engine runs just fine now, after new gears of course.