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Southern Illinois | usually breaks camshaft, I would think 4-5000 hours would be alot. As important as they are it would be worth changing if wear is suspect. we had one the bolts came loose and ruined the hub on the end of the crank and now the crank gets replaced as well. should have been changed during OH 500 hours ago but it just cost to much to spend $300 extra on a $5000 shop bill. live and learn | |
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