Forward, Reverse or Out of Gear

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Frank Bean

I saw somewhere (getting old-timers I suspect) that the transmission in a sailboat has a preference as to where it should be placed while sailing, Neutral, Forward or Reverse. I have never given it much thought until I read the article and it said, if I remember correctly that some harm can be done if you don't have it in the right position. If that is correct.....into which position do I place my 81' Hunter 37 Cutter? Or is there not an issue with that boat? BTW.....I love my Cherubini......the only problem....I don't get to sail her as much as I want. Let me hear from somebody.
 
Jul 17, 2005
586
Hunter 37.5 Bainbridge Island - West of Seattle
There are tons of info in the archive.

It really depends on the trani. Instead of me trying to recap all of the previous discussions on this topic, do a search in the archive. There are just too many threads in the archive for me to post all of their links here.
 
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Sanders LaMont

One vote for reverse

Frank, I have a 27 hp Yanmar on my 79 H37c and the mechanics have consistently said it should be in reverse once the engine is off and we are sailing. Dunno all the reasons, or the debate points in the archives, but that's what we do (cause I was raised in Mobile and taught to follow instructions)... Sanders s/v Good News
 
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Benny

Follow engine manufacturers recommendations.

as they vary from make to make. Yanmar mostly use constant mesh gear boxes so you can leave them in neutral to freewheel and the gears will maintain lubrication. If you want to stop the prop the manufacturer recommends it be placed in reverse. Slow the boat to within 1 knot before shiffting out of reverse.
 
Aug 3, 2005
23
- - Astoria, Oregon
With a MaxProp

I have a two-blade MaxProp feathering prop on my H37C. Instructions for it say to put engine in gear after shutting it down, otherwise prop will not feather. Even without MaxProp you should probably leave it in gear to prevent freewheeling.
 
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whisper

Neutral

the feathering prop will only feather when it is in neutral. If in gear it will continue to spin. This will cause a vibration in the boat. With the engine off, put the trans in forward an or reverse, and then neutral and you will go faster. When docking leave the trottle in idle and shift in and out of forward or reverse as needed returning to neutral for the sharpest docking.
 
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ed

WOW why do no one look at archives or owners manua

one more time. right is leave it in reverse with a yanmar and a max prop or any other prop. as the record used to say " ITS IN THE BOOK". READ THE OWNERS MANUAL. OR BUY TRANSMISSON PARTS ITS UP TO YOU. If the prop is featherd you not going any faster no mater where the gear is. yes it may turn a bit but get out and look and the damn thing it will be featherd.. sorry needed to get that off my chest.
 
Jul 17, 2005
586
Hunter 37.5 Bainbridge Island - West of Seattle
Sorry Ed, that is almost correct.

This is the info from the local Seattle Yanmar dealer and machanic. It all depends on the trani, not the engine. You also can't say all Yanmar is one way or the other. The previous owner could've changed the trani to a different type. when under sail, a mechanical gear trani can be in reverse or neutral. If it is in neutral the lower shaft is physically disconnected from the engine, and the shaft just rotates in the gear box. Since it is sitting in oil, there will be no damage to the trani or the engine. If you have hydraulic gear, then you should put it in reverse. So the best thing to do is to look at your trani.
 
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avalonduet

Reverse!!!!!

I have a 1981 H37C Just like yours, and the 3QM30 Yanmar engine has a twin-disc tranny. The owner's manual said very clearly to put it in REVERSE while under sail. With our 3-bladed prop, it makes a bit of a racket when you forget. Boy, I wish I were out on the water under sail so I could follow my own advice!!!! Dave
 
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