[C38] Newport Ensenada race

[Charles]

Don,
Sorry to report that you have just experienced the classic Hurth 
Transmission failure symptoms.
Requires a complete re-build, which takes a couple weeks in the best of 
times and costs more than buying a brand new Technodrive  ($1200).  You 
do have to adjust your engine mounts down 1/4 inch and you will probably 
find out they need to be replaced as well.....

Sorry, but I went through this last year (did the Hurth rebuild, which 
failed just out of warranty) and then installed the Technodrive.

Some things to KNOW before contacting your shipyard!
1.  There is enough room to move your prop shaft back and remove the 
transmission WITHOUT taking your boat out of the water.   Both Anders 
and I have done this!
2. When re-installing, put in a flex coupling, which dampens vibration 
and allows for a bit more variation in shaft alignment.
3. It takes about 45 minutes for Anders or me to remove the entire 
transmission.  I have the enlarged cut-out in the sail locker  (we are 
both over 6" 5".  and I don't bend so well anymore).   It really only 
takes unbolting the heat exchanger, linkage and the 8 transmission bolts 
after taking the 4 bolts out of the prop shaft connector).
4.  While you have the transmission out is the time to look at motor 
mounts.  Yanmar recommends motor mount replacement every couple of years 
(they really do!).   The rear mounts are a bear and I recommend having 
that done if you have any of the restrictions I do with size, age, 
etc.!  BTW, motor mounts are pretty standard things and you don't have 
to buy them for the crazy prices you see for example at universal.  I 
got my transmission and mounts from Sound Marine Diesel.  Call the early 
in the morning (eastern time) or you will get voicemail.  They are very 
helpful regarding advice and they back up their products.

Sorry,
Chuck Finn
Mighty Quinn #114
Great Lakes


On 5/4/2012 9:32 AM, Don Strong wrote:
> Larry: Good luck with your tranny and very relieved to hear that you 
> are safe.
> Regards, Don
>
> On 5/4/12 6:29 AM, Larry Malmberg wrote:
>> Anyone had experience in re building at Hurth transmission or trouble
>> shooting one?  We did the Newport Beach CA to Ensenada BC Mexico race 
>> and
>> after crossing the finish line started our engine, engaged the trans
>> forward, went into natural while dropping sails.  Went into forward 
>> and got
>> a terrible noise, same with reverse and on motion at all in forward or
>> reverse.  No fishing line on the prop, shaft turns slowly even when 
>> reving
>> up the engine in gear.  Any thoughts?
>>
>>
>>
>>
>>
>> Best regards,
>>
>> Larry Malmberg
>> Team Hassle
>>
>>
>> _______________________________________________
>> Listserve mailing list
>> Listserve at catalina38.org
>> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>