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Old 16-07-2012, 16:14   #1
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Join Date: Mar 2012
Location: new jersey
Boat: 1980 Morgan 46 ketch
Posts: 73
another hurth transmission problem BW20

my 1980 morgans HBW20 2.73:1 spline blew . relace with new will take 2 months i'm told. the spline will take 2 weeks coming from italy. i dont like eiter opton. any suggestions. laid uu in charleston s.c
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Old 19-07-2012, 23:09   #2
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Join Date: Jan 2011
Location: Costa Rica
Boat: Catalina 38
Posts: 122
I will replace it for a Twin Disc ( Technodrive) transmission. Many engine manufactures that used to install Hurth (now ZF) are switching to this one (Betamarine, Phasor,etc..). Apparently the parts are now made by a different manufacturer, which has affected quality and reliability a lot.
TD are direct replacements. The only difference is coupling height. This means that the engine should be lowered or raised around 1/4", depending on model. Plus, they are a bit cheaper!
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hurth, transmission

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