Hurth tranny

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Feb 18, 2011
93
Catalina 42 42 Windsor
I am pulling the transmission from my 1983 30 O'day. It is mated to a Universal 16 Hp diesel. The tranny has the number 05-05022 on it. That's it! anyone know which model Hurth this is?
 
Feb 26, 2004
23,051
Catalina 34 224 Maple Bay, BC, Canada
Feb 18, 2011
93
Catalina 42 42 Windsor
The Engine is something like 2516 ( I know it ends in 16) the M- designation started on later models. I understand that the ZF-5 is the same thing just renamed after a merger.
I just can't understand why there is nothing on my tranny to ID it. The tranny works fine but loses about a cup of tranny fluid every 25 miles. I can't figure out were it is coming from. Maybe I could mock something up and bench test it over a period of time using an electric motor.
 
May 30, 2006
354
Oday 34 Chesapeake Bay
Have you tried running it with a paper towel under the transmission and associated area to locate the source of the leak?
 
Feb 18, 2011
93
Catalina 42 42 Windsor
O'day Tranny

Well it is a HBW50. I pulled it and tore it down. There is a 7.5 mm ball bearing and a spring missing from the clutch pack. They are not in the bottom so it must have been apart before. I found the spring in
Florida. A ten pack of the steel balls in England and the Gaskets and seals in Seattle. Wish me luck.
 

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