Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 08-08-2008, 17:15   #16
Registered User
 
boris's Avatar

Join Date: Sep 2007
Boat: warwick 44
Posts: 108
bukh recomend a max of 30 deg
__________________

__________________
boris is offline   Reply With Quote
Old 08-08-2008, 17:32   #17
Registered User
 
Hampus's Avatar

Join Date: May 2008
Location: Sweden
Boat: Between boats
Posts: 463
Images: 6
Send a message via MSN to Hampus
Hey!

I don't have the meanual in front of me, but I know they mention it (Yanmar 3GM30F). If I remember correctly, they said no more than 10 degrees continuosly. They never said why though. I've done more than that though, and if it's a good installation there shouldn't be any problems. A few things come to mind though. It might be a good thing to run at a higher rpm if heeled a lot, to keep pressure up, especially on an old engine. Oil pressure isn't the only thing to take into consideration, also the cooling system. A poorly installed expansion tank might actually end up below the engine. Also if you have a water heater and it isn't placed in front of, or behind the engine, but on the side, the water pump might have a hard time keeping the flow up.
__________________

__________________
http://adventureswithsyingeborg.blogspot.com/
On the way back to Sweden.
Hampus is offline   Reply With Quote
Old 08-08-2008, 17:42   #18
Registered User

Join Date: Oct 2007
Location: St Charles MO
Boat: Easterly 36 Aft Cabin
Posts: 180
The Perkins manual states 25 degrees of heel maximum. Don't run your Perkins if you are heeled over more than 25 degrees.
__________________
7.25 years until the Carib
easterly is offline   Reply With Quote
Old 08-08-2008, 18:14   #19
Marine Service Provider
 
AnchorageGuy's Avatar

Join Date: Mar 2003
Location: Wherever the boat is!
Boat: Marine Trader 34DC
Posts: 4,618
Whatever the manuals state we have motorsailed for hundreds of hours with our Yanmar with NO oil issues.
__________________
Chesapeake Bay, ICW Hampton Roads To Key West, The Gulf Coast, The Bahamas

The Trawler Beach House
Voyages Of Sea Trek
AnchorageGuy is offline   Reply With Quote
Old 08-08-2008, 18:43   #20
Senior Cruiser
 
Therapy's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: W Florida
Boat: The Jon boat still, plus a 2007 SeaCat.
Posts: 6,894
Images: 4
We overheated a Westerbeke because the water intake was out of the water too much.
__________________
Therapy is offline   Reply With Quote
Old 08-08-2008, 18:59   #21
Marine Service Provider
 
AnchorageGuy's Avatar

Join Date: Mar 2003
Location: Wherever the boat is!
Boat: Marine Trader 34DC
Posts: 4,618
Quote:
Originally Posted by Therapy View Post
We overheated a Westerbeke because the water intake was out of the water too much.
Now that is a good point and an issue we also ran into. But all we did was move the intake thru-hull low enough to make it so only if the boat is upside down will this happen again.
__________________
Chesapeake Bay, ICW Hampton Roads To Key West, The Gulf Coast, The Bahamas

The Trawler Beach House
Voyages Of Sea Trek
AnchorageGuy is offline   Reply With Quote
Old 08-08-2008, 19:12   #22
Registered User
 
Boomp's Avatar

Join Date: Apr 2008
Location: Massachusetts
Boat: Morgan OI 30' Itinerant
Posts: 254
Took a weekend diesel seminar last year. The fellow who ran it said to avoid running the engine at more than 15*. The oil in the sump could be picked up and you end up with a runaway engine and the only way to stop it is to plug a raincoat or your hand into the air cleaner. I don't want to ever have to deal with that! He said if you use your hand you risk a big hicky...naahh don't want that!
__________________
A man who is not afraid of the sea will soon be drowned, he said, for he will be going out on a day he shouldn't. But we do be afraid of the sea, and we only be drowned now and again.

J.M.Synge, in The Aran Islands
Boomp is offline   Reply With Quote
Old 08-08-2008, 19:14   #23
CF Adviser
 
Pelagic's Avatar

Cruisers Forum Supporter

Join Date: Oct 2007
Boat: Van Helleman Schooner 65ft StarGazer
Posts: 6,896
I think perhaps the issue would be if you heeled over sufficiently and there was no other motion for you to scavenge out from the oil sump. Which is not the case at sea where swells and waves rock the engine

Also Marine applications have deeper oil sumps to begin with because of the expected angle of heel

I Motorsail with my Perkins 6.354.4 M series all the time at low RPM when fully pressed with headwinds.

1993 installation and recent compression check showed all cylinders just below optimum. We burn no oil between changes
__________________
Pelagic is offline   Reply With Quote
Old 08-08-2008, 19:23   #24
Registered User
 
S/V Illusion's Avatar

Join Date: Oct 2007
Location: Lakewood Ranch, FLORIDA
Boat: Alden 50, Sarasota, Florida
Posts: 1,693
Surprised no one has asked why this is even a reasonable scenario - if there is sufficient wind to heel the boat significantly, why run the engine?
I guess the only plausable scenario I can imagine is battery charging but, as it is possible to drain the sump beyond the pick-up tube, I can't see why anyone would do so even under that circumstance.
This certainly seems to be one of the more academic issues here...
__________________
S/V Illusion is offline   Reply With Quote
Old 08-08-2008, 20:05   #25
Registered User
 
Ziggy's Avatar

Join Date: Apr 2008
Location: U.S., Northeast
Boat: Contessa 32
Posts: 1,421
Images: 2
Quote:
Originally Posted by never monday View Post
Most of the engine builders will publish a deg of operation for a given unit. From memory, most being 20*
According to the Yanmar installation manual, the max. athwartship inclination is 20 deg continuous, 30 degrees peak. Max fore-and-aft inclination is 20 deg continuous, 25 deg peak.
__________________
Ziggy is offline   Reply With Quote
Old 08-08-2008, 21:25   #26
Eternal Member
 
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
I have absolutely no opinion on this.....I either sail or motor.....don't do both
__________________
Chief Engineer is offline   Reply With Quote
Old 09-08-2008, 04:29   #27
Registered User

Join Date: Nov 2006
Posts: 976
Images: 6
The greatest angle I have seen "that is OK" is 35 deg.
I have a watch dog on my engine that shuts it down if the engine is "stressed". (Good old industrial not marine technology.) It has a manual override at a flick of a switch. You check the guages and find out what the problem is, assess the danger of being without an engine and make your decision. If it is heeling to far while sailing, then a quick easing of the sheets is all it takes. If you are desperately trying to save your boat from a lee shore in a gale...you make your own decision then....
__________________
cooper is offline   Reply With Quote
Old 09-08-2008, 14:52   #28
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
It takes a huge angle for oil to be picked up somewhere it shouldn't. The damage would have been already done by the oil pump losing pick up before then.
Motor sailing is the hardest thing you can do to your engine. It is like idling out of gear and death to an engine. If you motor sail, you certainly want to work the engine hard when ever you have the chance to do so
__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 09-08-2008, 15:18   #29
CF Adviser
 
Pelagic's Avatar

Cruisers Forum Supporter

Join Date: Oct 2007
Boat: Van Helleman Schooner 65ft StarGazer
Posts: 6,896
Pretty hard to avoid Allan if you are a motorsailer by design.

On long passages I need to motorsail to keep the batteries up from the autopilot draw.

Engine only I need about 1600RPM for 8 knots
I run between 900 to 1200rpm if I have any kind of lift from the sails and I am doing 8 knots

Back to idle 650rpm and the speed will drop to 5-6 depending on wind.

I am big and heavy (40 ton) with a conservative rig and it is not a boat I use as a day sailor so I don’t think I can avoid it..I just need to make sure I keep about a 2knot speed load on the engine by furling earlier in higher winds.

That is one of the reasons I upgraded from 400Ah to 1040Ah in house bank, to see if I can manage this better and get back to pure sailing (with conveniences).
__________________
Pelagic is offline   Reply With Quote
Old 15-08-2008, 03:13   #30
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
She's a beautiful boat Pelagic. I think your engine will be working a little harder than most. However, it is good to do two things. Every time you have motorsailed for sometime, give the engine a good hard work for a few minutes and either continue to motorsail or shut the engine down. It just helps to keep the cylinders valves and exhaust clean. Just before you shut down anytime, give the engine a good rev and then pull the stop cable. This helps to get rid of the slightly heavier oils that can sit in the exhaust system and cause a bit of blue smoke at start up from cold.
__________________

__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
46' C&C Cat for sale cheap, some damage CSY Man Multihull Sailboats 6 29-01-2008 11:47
Storm damage Geno53 Anchoring & Mooring 8 11-09-2006 19:21
New Weapon Could Mean The End Of Collateral Damage ? CaptainK Health, Safety & Related Gear 7 02-02-2006 13:35
Rub rail damage help needed Pa La O La Multihull Sailboats 5 09-12-2004 18:58
Aluminum spar damage. irwinsailor Construction, Maintenance & Refit 2 01-05-2004 21:52



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 04:09.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.