The pistons used in Dodge's 1500 Ram trucks Everyone facet three rings enclosing their replica. These rings functioning in sync to prevent oil from entering the combustion Hospital ward and to play down strength loss. Should these rings grow into damaged, the Motor lorry's energy and fuel economy Testament abbreviate and its emissions continuous Testament burgeoning. Replacing damaged rings is a draggy undertaking. Happily, the rings can be tested without disassembling the engine with a compression gauge.
Instructions
1. Disconnect the coil wire from the distributor cap. Nine wires lead to the distributor cap. Eight of the wires form a circle. The ninth wire is the coil wire, and is located in the center of the circle. Pull the rubber boot at the base of the wire away from the distributor cap to disconnect the coil wire.
2. Remove all of the spark plugs from the engine with a socket wrench.
3. Screw the threaded end of a compression gauge into one of the spark plug openings.
4. Direct an assistant to crank the engine with the ignition key while simultaneously depressing the accelerator pedal to the floor. Record the reading on the compression gauge.
5. Repeat steps 3 and 4 for the remaining cylinders.
6. Compare the readings recorded for each cylinder. Repeat the process described in step 4 and record the reading on the compression gauge. If the reading improved, the piston rings are likely to be defective.
7. Spray approximately 30 cc. of engine oil into the cylinder which produced the low-compression reading with a spray bottle. As an alternative, a syringe may be used to inject the oil into the cylinder. If the readings are all approximately the same, the piston rings are in working condition. If the readings for two adjacent cylinders is lower than the other cylinders, the head gasket must be replaced. If the reading is low for only one cylinder, that piston's rings may be defective.
