Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 18-08-2011, 07:24   #16
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,930
Re: Bonehead Move: No Cooling Water . . . Now What ?

Also check your exhaust hose that leads from the water injector to the water lift muffler. The hose isn't spec'd to run without cooling water injection for more than a few minutes. If not burned through it may be hard and likely to crack when you least want it to.
__________________

__________________
DeepFrz is offline   Reply With Quote
Old 19-08-2011, 08:41   #17
Registered User

Join Date: Feb 2010
Boat: Nimble30 'Sweet Pea'
Posts: 11
Re: Bonehead Move: No Cooling Water . . . Now What ?

As most of you predicted, there was no (apparent) damage to the impeller or other equipment. FWIW it was a Yanmar impeller, it appeared to be pristine but I changed it out anyway. I'm considering attaching it to the key as a reminder and I may yet locate my old checklist and start using it again.
__________________

__________________
gardnsailor is offline   Reply With Quote
Old 19-08-2011, 09:50   #18
Registered User

Join Date: May 2008
Posts: 1,965
Re: Bonehead Move: No Cooling Water . . . Now What ?

While the key on the sea cock is a fine idea it's no replacement for looking over the side for cooling water every time you start the engine. That checks the sea cock is open, the impeller is working, no blockage in the strainer, and a bunch of hoses all in one glance.

Two other "upgrades" to consider:

-- Install an exhaust temperature alarm. These are inexpensive and easy to install yourself (it's just a strap with a thermocouple that goes around the exhaust hose). This will warn you of a cooling water cutoff (say from a plastic bag) before the engine is close to overheating.

-- Install a temperature gauge and sender in addition to your alarm. Temp sensors do fail surprisingly frequently. This give you redundancy in this critical area. It's also a great way to see how hard your engine is working. and that you aren't running the engine too cool (which can cause carbon buildup in the cylinders if done for an extended time)

Carl
__________________
CarlF is offline   Reply With Quote
Old 19-08-2011, 10:17   #19
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,334
Re: Bonehead Move: No Cooling Water . . . Now What ?

Quote:
Originally Posted by malbert73 View Post
I now have an inspection port in my engine room cover, with a hook on the inside. When I close down the boat, I open the cover and close the seacock, hanging the key inside next to the seacock. I can't tell you how many times I have tried to find the key to start the engine before I remember- oh, right- open the seacock first!
Yep, this is the kind of thing that worked for me too. I dont know how many times I've forgot to open a seacock... but too many. It's the first thing on my mind going down the dock and as soon as I get to the boat I get distracted by other things. I rarely close any seacocks at all anymore.
"Install an exhaust temperature alarm. These are inexpensive and easy to install yourself (it's just a strap with a thermocouple that goes around the exhaust hose). This will warn you of a cooling water cutoff (say from a plastic bag) before the engine is close to overheating."
Yeah, easy to install, just use a snap-disc thermostat from Graingers. Problem is, your impellers are already gone due to no water to lubricate them.
__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is offline   Reply With Quote
Old 19-08-2011, 10:17   #20
CF Adviser
 
Bash's Avatar

Cruisers Forum Supporter

Join Date: Dec 2008
Location: sausalito
Boat: 14 meter sloop
Posts: 7,260
Re: Bonehead Move: No Cooling Water . . . Now What ?

Quote:
Originally Posted by gardnsailor View Post
As most of you predicted, there was no (apparent) damage to the impeller or other equipment. FWIW it was a Yanmar impeller, it appeared to be pristine but I changed it out anyway. I'm considering attaching it to the key as a reminder and I may yet locate my old checklist and start using it again.
That's good news! Thanks for posting the final resolution.
__________________
cruising is entirely about showing up--in boat shoes.
Bash is offline   Reply With Quote
Old 19-08-2011, 11:24   #21
Registered User
 
Astrid's Avatar

Join Date: Oct 2008
Location: Northern British Columbia, part of the time in Prince Rupert and part of the time on Moresby Island.
Boat: 50-ft steel Ketch
Posts: 1,885
Send a message via MSN to Astrid Send a message via Yahoo to Astrid
Re: Bonehead Move: No Cooling Water . . . Now What ?

Check lists are a good thing to have. Sometimes there is quite a bit on one´s mind and a list keeps one on track. As a pilot, it's essential to have one and I have carried that over into sailing as well.
__________________
'Tis evening on the moorland free,The starlit wave is still: Home is the sailor from the sea, The hunter from the hill.
Astrid is offline   Reply With Quote
Old 19-08-2011, 11:36   #22
Registered User
 
crashkahuna's Avatar

Join Date: Nov 2010
Location: So. Calif
Boat: Catalina 28
Posts: 124
Images: 20
Re: Bonehead Move: No Cooling Water . . . Now What ?

Yeah. I'm all about checklists too. Only time I forgot to open engine water intake was when I was splashing in after a haulout. Being distracted and worried about it falling out of the sling or new packing leaking I wasn't focused.
__________________
crashkahuna is online now   Reply With Quote
Old 19-08-2011, 11:41   #23
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,150
Re: Bonehead Move: No Cooling Water . . . Now What ?

You are thinking along the right lines.

Pull the raw water impeller because you now have to inspect it anyway. After pulling the impeller look at the lobes and hopefully they are all there. If lobes are missing then hopefully they are not going to cause problems elsewhere. Of course, replace the impeller with a new one.

Make up a little reminder and put it on your engine start button that your seacock is closed for next time.

Woops, just read back and saw that things turned out well...excellent.
__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 19-08-2011, 11:51   #24
Senior Cruiser
 
SkiprJohn's Avatar

Cruisers Forum Supporter

Join Date: May 2006
Location: Kea'au, Big Island, Hawaii
Boat: Cascade, Sloop, 42 - "Casual"
Posts: 14,192
Re: Bonehead Move: No Cooling Water . . . Now What ?

Great that it turned out well. There are a lot of failsafe systems that help you remember to open a seacock but whatever you choose make certain you write it down somewhere and give it to your crew so that in an emergency they can do the right thing.
kind regards,
__________________
John
SkiprJohn is offline   Reply With Quote
Old 20-08-2011, 08:26   #25
Registered User
 
Ziggy's Avatar

Join Date: Apr 2008
Location: U.S., Northeast
Boat: Contessa 32
Posts: 1,421
Images: 2
Re: Bonehead Move: No Cooling Water . . . Now What ?

Quote:
Originally Posted by Cheechako View Post
Yep, this is the kind of thing that worked for me too. I dont know how many times I've forgot to open a seacock... but too many. It's the first thing on my mind going down the dock and as soon as I get to the boat I get distracted by other things. I rarely close any seacocks at all anymore.
"Install an exhaust temperature alarm. These are inexpensive and easy to install yourself (it's just a strap with a thermocouple that goes around the exhaust hose). This will warn you of a cooling water cutoff (say from a plastic bag) before the engine is close to overheating."
Yeah, easy to install, just use a snap-disc thermostat from Graingers. Problem is, your impellers are already gone due to no water to lubricate them.
That's why I prefer a water flow sensor (like the ones from Aqualarm.net).
__________________

__________________
... He knows the chart is not the sea.
-- Philip Booth, Chart 1203
Ziggy is offline   Reply With Quote
Reply

Tags
engine cooling water, water

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
Water Cooling Repair - Yamaha 5hp Outboard landonshaw Auxiliary Equipment & Dinghy 13 06-08-2011 16:17
Converting Water to Fuel Don1500 Liveaboard's Forum 12 05-08-2011 19:55
Head Odors Sailagain Plumbing Systems and Fixtures 19 15-07-2011 11:06



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 09:03.


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.