public float myTimer = 2.0f;    
  if(myTimer > 0){    
  myTimer -= Time.deltaTime;    
  transform.Translate(new Vector3(0.0f, 0.0f, 0.1f));    
  if (myTimer <= 0.0f) {    
  transform.Translate(new Vector3(0.0f, 0.0f, 0.0f));

using UnityEngine;
using System.Collections;

public class Tests : MonoBehaviour {

  void OnTriggerEnter(Collider collider)  
       {  
        if (collider.name.Equals("Cubeb") )  
        {  
            collider.transform.SendMessage("go");  
        }  
       }
   
  void Update () {
   
  }
}

using UnityEngine;
using System.Collections;

public class Tests2 : MonoBehaviour {

  // Use this for initialization
  void Start () {
  }  
  public float myTimer = 2.0f;
  bool canGo = false;  
   void Update()  
   {  
    if(canGo)  
    {
    if(myTimer > 0){  
    myTimer -= Time.deltaTime;   
    transform.Translate(new Vector3(0.0f, 0.0f, 0.1f));
          if (myTimer <= 0.0f) {
     transform.Translate(new Vector3(0.0f, 0.0f, 0.0f));
  }
}
}   
   }
}
  void go()  
  {  
  canGo = true;  
  }