RPM Is Unstable on 1300CC Motor After Installing New Cam

Ask Andy › Category: Engine › RPM Is Unstable on 1300CC Motor After Installing New Cam
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Admin Access Staff asked 2 years ago

Hola , compre este producto el año pasado y recien pude instalarlo , Tengo el siguiente problema , se hizo la reparacion general del motor  ( 1,300 cc ) , y se armo con el KIT W 100 , Las RPM en ralenti  son inestables , suben y bajan ,  de 1,300 bajan a 700 y suben nuevamente , La compresion de las valvulas no estan parejas cuando midieron , Como puedo solucionar este problema ?? Es normal que pase esto ??  Si necesita mas datos me avisa para enviarle , gracias .

Hello, I bought this product last year and I was just able to install it. I have the following problem. The engine (1,300 cc) was overhauled, and it was assembled with the W 100 KIT. The idling RPM is unstable, it goes up and down. from 1,300 they go down to 700 and go up again, the compression of the valves are not even when measured, how can I solve this problem? Is it normal for this to happen? If you need more information let me know so I can send you , thanks .

 

1 Answers
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Admin Staff answered 2 years ago

Hello Daniel,

I am sorry to hear you are having problems with your motor.  The 6100 cam grind is a very mild grind that is just a little above a stock camshaft lift and duration. If the camshaft was installed properly and all the cam/lifter break-in procedures were done correctly, It is not possible for this camshaft to cause the problems you are describing.

I would recommend checking the following;

  • Check the valve adjustment when the motor is completely cold and make sure your valve lash is .006
  • Check your spark plug wires to make sure you have the correct firing order
  • Check for vacuum leaks at the carburetor and intake manifold.
  • Check your distributor, and make sure your advance is functioning properly.
  • Lastly, do a physical compression test on all the cylinders.  There should not be more than a 10% difference from highest to lowest.

Hope this helps,

Andy

/by