2006 393 Transmission

May 14, 2014
2
Beneteau 393 Stamford
I have some questions on my 2006 393 , with a Yanmar 55HP

1/ What is the opinion with putting the transmission in gear when sailing, i have always done this on previous boats, If the boat is left in neutral the shaft spins very fast and make a little noise, i also have a fixed 3 blade prop.

2/ I also have noticed if i sail with the boat transmission in gear, i can not shift back to neutral unless i start the engine, the shifter will move almost to neutral but only fully in to neutral after starting the engine, is this normal


3/ It looks like the is motor oil in the transmission, If i service the transmission should i replace with 30w motor oil ?????

Thank for you Help
Jim
Stamford CT
2006 393
 
Nov 23, 2009
437
Beneteau Oceanis 361 Clipper --
A prop left to rotate will slow the boat less than a fixed one. This as far as speed is concern.
Regarding the "mechanical side", very important to read what the manual says. Volvo for instance (in case with my engine) says, very clearly, to let the gear in neutral during sailing if a fixed prop or put it in reverse if a folding prop.
Check also the manual regarding the oil in the gear box. Could be transmission oil (most probably) or engine oil.

PS: Forgot to mention, B393 is a model I really like.
 
Sep 15, 2009
6,243
S2 9.2a Fairhope Al
this is a recurring question that has been discussed a lot the yanmar bulletin states that it is to be left in neutral while sailing or the warranty is void but i will say that you have your proof by having a tough time shifting back to neutral with engine not running ...as far as the oil in the clutch is concerned your owners manual will clearly state what to use ...hope this helps
 

Gunni

.
Mar 16, 2010
5,937
Beneteau 411 Oceanis Annapolis
Jim;
Given the year, I assume this is a Yanmar engine with a Kanzaki transmission. You need to immediately come up to speed on the care and feeding of your auxiliary. Contact Mack Boring and talk to their service department. Mack Boring is the US importer, and service facility. Get a service manual, owners manual and it wouldn't hurt to have a parts catalog specific to your engine / transmission. In the meantime, leave your transmission in neutral while sailing.

You can do real damage to your very expensive auxiliary system by inadvertent abuse and neglected service. If you don't care to understand or manage the system have Mack Boring or your local Beneteau dealer recommend a knowledgeable service tech who you can pay to do this.