1989 Mazda MPV Timing Belt Broke

1989 MAZDA MPV
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KIMHESTER
  • MEMBER
  • 1 POST
The timing belt broke and then someone tried starting it. It does not make any type of noise when it was turned over. People are saying valves probably hit pistons, are they being negative about me repairing it or is there a great percentage chance that it bent valves? Is it worth putting timing belt on to see?
Thanks
Jan 13, 2006 at 4:07 AM
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COSMO
  • ✓Experienced Mechanic
  • 347 POSTS
Lucky for you the MPV 3.0L engine is NOT a contact engine...you can turn it over as much as you want and it will not hit the valves against the pistons.

Cosmo...Mazda Tech
Jan 13, 2006 at 8:21 AM
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Suggested Repair

Install a new timing belt. The 3.0L is a non-interference engine, so cranking after the belt broke should not have caused the valves to contact the pistons.

Conversation Summary

The owner of a 1989 Mazda MPV reported that the timing belt broke and the engine was then cranked without unusual noise. They asked whether the valves were likely bent and whether replacing the belt was worthwhile. The expert stated that the MPV 3.0L is not a contact engine, so turning it over will not cause the valves to hit the pistons.

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