Twin Disc vs ZF?(hurth) - SailNet Community
 
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post #1 of 2 Old 07-17-2011 Thread Starter
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Twin Disc vs ZF?(hurth)

Just doing some research as my hbw50 may need rebuilding or replacement.

What is everyone's feeling or opinion on these boxes?

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
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post #2 of 2 Old 07-17-2011
Don Radcliffe
 
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I had a hurth on the old 4108, and it developed a hesitation going into reverse. I had a shop take it apart; they couldn't find anything wrong, but it worked fine for 2000 hours after that.

When I installed the new Beta, they said they would strongly recommend the twin disc over the hurth, as they had had a number of problems with hurth transmissions. The new twin disc has 1000 trouble-free hours.

My original hurth was a size bigger than they recommended for the engine power--I've been seeing a number of complaints about hurth problems--in most of them the transmission was operating near the top end of the load spec.
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