Hi I have a 2000 laganza that one of the timming belt tensioners broke. I have replaced both of the tensioners and I am confidant that I have set the correct timming. The car won't start and when I did a compression check the 1st and 4 th cylinder have 180ft lbs and the 2nd and 3rd cylinders have "0" ft lbs. Does this mean that when the tensioner broke the 2nd and 3rd cylinder valves were bent. Please help as I am trying to get the car fixed as it is transportion for my daughter to go to college Thank You
You are more likely right to think you have done some damage to the cylinder head. If you have no compression on number 2 & 3 cylinders then I would take the head off and inspect and recondition the head. You may also have damaged the pistons or rings. Anyway with out looking for any damaged parts, you will not find what parts you will need. I would get a workshop manual for the vehicle to help you. Also if you decide to rebuild the engine, fit a new timing belt.
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