Kanzaki trans problems please help

Feb 10, 2017
305
Hunter 41 Progreso
the bolt at the very end of the transmision keep losing after a few days of sailing. i have a H41 with a fixed prop, and around 3 knots speed my shaft is turning very hard. i read my transmission will break if i put the reverse on so the shaft is not turning. please any suggestion will help me take a decision, maybe i will try red loctite on the tread or buy a shaft locker? were?
 
Jan 11, 2014
13,069
Sabre 362 113 Fair Haven, NY
Could you be more specific about which bolt? A bolt holding the transmission to the engine? A bolt attaching the flange and shaft to the transmission?
 

jssailem

SBO Weather and Forecasting Forum Jim & John
Oct 22, 2014
23,392
CAL 35 Cruiser #21 moored EVERETT WA
Hi Valerlo.
Post a picture of the problem. It might give us some clues as to how to help you.
On the other hand I'll give you some guesses... locktite or a lock washer or a lock nut might be an answer.
 
Jun 8, 2004
2,959
Catalina 320 Dana Point
I believe mine are safety wired if it's the bolts from flange to shaft, similar to that seen below?
1680487142557.png
 
Jan 11, 2014
13,069
Sabre 362 113 Fair Haven, NY
flange to the trans
Possible issues:

Stripped bolt or nut: Replace them.
Add a split lock washer
Engine and transmission are not aligned
Shaft is bent causing excessive vibration loosening nuts and bolts.

To stop the prop from spinning shut down the engine while in gear, then shift to neutral. With the engine stopped and in gear the prop will not spin, don't leave it that way. Shift into neutral.

Another option is to get a feathering or folding prop.
 
Jan 4, 2006
7,303
Hunter 310 West Vancouver, B.C.
the bolt at the very end of the transmision keep losing after a few days of sailing.
@Valerio , there seems to be a problem with your Spanish to English translation, but believe me, you don't want to hear my English to Spanish translation. Muy malo.

If you can post a picture of the loose bolt (or nut) I will label the parts so we are both using the same names and life will become much easier. Are you separating the flanges every few days to see this loosened bolt (or nut) ?
 
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