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  #1  
Old 10-18-2004, 06:34 PM
rdwilt rdwilt is offline
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Join Date: Aug 2004
Boat: 1999 MariStar 230 LT-1
Location: Ohio
Posts: 8
transmission rattle

I have a '99 Maristar with Hurst tranny. Bought it with 100 hrs on it in '02. Since day 1 it has had a low RPM rattle both in forward and reverse. My buddy, who also has a '94 Maristar, shifts smooth as silk. Someone mentioned changing to a different type of tranny fluid but the local boat shop said they only put in what manufacturer recommends. Is this a death rattle??? It does seem to be getting a little louder. Any thought or suggestions?
rdw
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  #2  
Old 10-18-2004, 06:40 PM
Hoosier Bob's Avatar
Hoosier Bob Hoosier Bob is offline
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Join Date: Aug 2004
Boat: 1993 MASTERCRAFT PROSTAR 190 285HP 351 INDMAR
Location: INDIANAPOLIS, IN
Posts: 8,392
Rattle?

Sure it's comming from the trans? It definately goes away in nuetral? If so maybe alignment, shaft play, coupler, strut bearing. If you can hear it from the trans this is all moot! If still there in Nuetral there are a few other possibilities.
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  #3  
Old 10-18-2004, 09:00 PM
rdwilt rdwilt is offline
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Join Date: Aug 2004
Boat: 1999 MariStar 230 LT-1
Location: Ohio
Posts: 8
follow up

Bob,
yes, it is quiet in neutral and disappears as you accelerate. No vibration is detectable at cruising speeds. Any other thoughts on how to differentiate between your suggestions? I'm ready to winterize after this wed. last run down the river.
rdw
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  #4  
Old 10-19-2004, 06:55 PM
lakes Rick's Avatar
lakes Rick lakes Rick is offline
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Join Date: Jul 2004
Boat: MC Maristar 225 VRS 1994 350TBI
Location: Eugene, Oregon
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Just to clarify the 94 has a walter-v drive/BW transmission.. The Hurth came later...

Check your coupler bolts.. Mine were all loose.. You need to check EACH bolt to do this..

I would also check your strut bearing/bushing
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  #5  
Old 10-19-2004, 08:41 PM
chico chico is offline
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Join Date: Jul 2004
Boat: 94 205 prostar
Location: ontario
Posts: 245
rattle

it could be your flex plate
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