Checking an engine for blow by requires expertise not normally establish in a cause it yourself set-up. Firm steps Testament need precision instruments and Professional scholarship to glance at the instruments and discharge the testing.
Instructions
1. Discern the year base of the vehicle and invest in the function book that includes the procedure. Sometimes this procedure is not available in a usual avail notebook and must be located by your mechanic via personal computer.
2. Ascertain the vastness of the Glimmer plugs. Attach the matching 1/2-inch guide Glimmer plug socket to the 1/2-inch manage extent. (The amplitude should be lingering Sufficiently to bring the ratchet alike with the top of the engine). Attach the extension to the 1/2-inch drive ratchet and push the on/off lever on the ratchet to the off position. (Counterclockwise).
3. If the pressure does not hold at a steady position, there is blow-by (loss of cylinder compression) in this cylinder.8. Repeat this procedure at every cylinder, and note all cylinders that are not maintaining steady pressure.
This is a symptom of a blow-by condition.
5. Disconnect the battery and all spark plug wires
6. Attach the appropriate size fitting to the compression gauge, and screw it clockwise into the spark plug hole until hand tight.
7. Have a helper turn over the engine while you are observing the compression gauge reading. You are looking for a steady rise from 0 to the maximum compression for the engine. Position fender cover over the fender side you are starting on.4. Look up the firing order for the engine you are working on and remove the first spark plug since order using your 1/2-inch drive set-up. Look for carbon build-up on each spark plug.
These cylinders will require a complicated procedure to be repaired before the vehicle is returned to acceptable running condition.
