Engine wobble!

Test for Cylinder Mis-Firing


This test (sometimes called a "power balance" test) provides a good indication of how much each cylinder contributes to the overall power output of the engine.  In addition, it also isolates which cylinders contribute little to manifold vacuum.
You can perform this test at home on any VW engine except those with electronic ignition.  If there is a suspected burned valve or other major problem, this quick and easy test will indicate which cylinder it is.  Because VWs have only four cylinders, a faulty one will show up relatively quickly.
To perform a cylinder mis-firing test -
Remove all the spark plug leads from the spark plugs.If a cylinder is faulty, when it is disabled it will have little or no effect on the engine's speed or performance, as it will not be contributing fully to the overall engine power.
A dwell-tachometer will give a more accurate indication of changes in engine rpm as you conduct the test.


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