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Q: "If the timing belt breaks in a 1991 pathfinder does it always bend a valve?" Nissan 3.0 V6 OHC is an interference engine. It will bend at least one valve. Probably one or two on each head. If doing the work yourself you might come out OK. If not, a new engine or a new car might be cheaper. I found a D21 SE P/U with that engine and a snapped belt. 4 valves were bent. I did the work myself and plus a bunch of other new parts and ran about $500. I would expect to pay at least $1500 for someone else to do the work. -- scott i did the work myself but had a machine shop do the re-valving , i bent every intake valve and cracked a couple seats and still cost me around $900. some engine rebuilding shops or automotive machine shops have exchange heads for about $300 to $350 each.

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โˆ™ 2007-03-05 07:25:33
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Q: If the timing belt breaks in a 1991 pathfinder does it always bend a valve?
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