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cit2cv041

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centrifugal advance checking gauge



        to check advance of all 2cv engines                    videos below


 

              The checking gauge with the different angles                                                                   The pointer attachment                 


                                                                   

                                                                                        The complete gauge attached to the camshaft.
                                   RED line is the 6 degree point. The flywheel has to be turned to put the pointer in line with the zero line just above it.
                                                           DARK BLUE  point is the lowest part of the cam lobe. The screw must be lightly tightened.
                LIGHT BLUE line, points to a metal limit stop. There are 2 of them, one at the top and one at the bottom. These are adjusted up or down
 with a pair of thin nosed pliers, to be in exactly the same position as each other to either increase or decrease the angle on the gauge specific for your engine.

The gauge is showing an angle of 6 degrees, so the flywheel must be turned to put the pointer onto the zero line to begin the test. The 4 cuts in the tool indicate 6, 8, 13 and 15 degrees. When the tool is set at zero, move the pointer anti clockwise until it stops and read off the angle. Adjust the limit stops as necessary.

These are the angles specific for each type of engine.

 425  A type and AU type..............................16 to 19 degrees.
 425  AZ and AZU type..................................11 to 14 degrees. Flat topped pistons.
 425  AZ and  AZU type..................................6 to 8 degrees.  Convex topped pistons.
 435  A53 [435] type and M4 [602cc]...........8 degrees.
 602  A 79/0 type [602]...................................12.5 degrees.
 602  A 79/1
 602  M28
 602 M28/1..................................all 3 types...15. degrees.

 These angles are the maximum allowed for any specific engine, anything set differently will impact on its performance.


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