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07-01-2020, 02:56 PM
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#1
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Guru
City: Tacoma, WA & Ashland, OR
Vessel Name: boatless, ex: Seeadler
Vessel Model: RAWSON 41
Join Date: Jun 2016
Posts: 2,234
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Bleeding my Cats
I just installed a new 11 gallon water heater; a fairly straight-forward replacement, once I wrestled it into place. The electric function works just fine, but...
The install directions make a point of telling me to be certain that I bleed all the air out of my engine cooling system. So I opened the big yellow Caterpillar manual to "cooling system" and it says nothing about how, and more important, where to bleed it. Your thoughts? There is a gallon coolant reservoir on top of each engine. Is it sufficient to simply open the cap and let it vent?
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07-01-2020, 04:01 PM
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#2
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Senior Member
City: North NJ
Vessel Name: Bassey
Vessel Model: 17' Bass
Join Date: Aug 2016
Posts: 438
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Find the highest point in the cooling system and you should find a bleed screw. If there is none and all you have is a reservoir and not a expansion tank keep the level up the next few warm up cycles as the system purges the air out.
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07-01-2020, 04:02 PM
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#3
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Senior Member
City: North NJ
Vessel Name: Bassey
Vessel Model: 17' Bass
Join Date: Aug 2016
Posts: 438
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Also watch temps as you run you kitty's. Of course
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07-01-2020, 04:26 PM
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#4
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Guru
City: Looking
Vessel Name: --
Vessel Model: Between boats
Join Date: Aug 2017
Posts: 1,190
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Sometimes leeches are a lot less messy....
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07-01-2020, 06:34 PM
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#5
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Guru
City: Inside Passage Summer/Columbia River Winter
Vessel Name: Alaskan Sea-Duction
Vessel Model: 1988 M/Y Camargue YachtFisher
Join Date: Jul 2012
Posts: 8,050
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Make sure to add coolant at first, then make sure the tank stays about 1/2 full.
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07-01-2020, 06:49 PM
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#6
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Guru
City: Anacortes
Join Date: Nov 2012
Posts: 1,189
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You have 3208’s right? I’ve had my entire cooling system off engine a couple times. Just fill it, let the temps come up and then check the main tank after it cools down. When the overflows are consistent in level in the morning I stop checking the main tank.
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07-01-2020, 09:26 PM
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#7
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Guru
City: Beaufort, NC USA
Vessel Name: Sylphide
Vessel Model: Kingston Aluminum Yacht 44' Custom
Join Date: Aug 2014
Posts: 2,228
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Quote:
Originally Posted by boathealer
Sometimes leeches are a lot less messy....
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I'm glad I'm not the only one who had to read the title a few times before I got it... lol
WHAT IS THIS MAN DOING TO HIS PETS?!
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07-01-2020, 09:42 PM
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#8
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Guru
City: Tacoma, WA & Ashland, OR
Vessel Name: boatless, ex: Seeadler
Vessel Model: RAWSON 41
Join Date: Jun 2016
Posts: 2,234
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Quote:
Originally Posted by TowLou
Find the highest point in the cooling system and you should find a bleed screw. If there is none and all you have is a reservoir and not a expansion tank keep the level up the next few warm up cycles as the system purges the air out.
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Thanks. That's how i see it. There is actually a one quart expansion tank vented off the one gal. reservoir. The Cat manual is remarkably detailed and I think what it doesn't say is significant. I think it was Dizzy Gillespie who said it's not the notes it's the rests.
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07-01-2020, 09:44 PM
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#9
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Guru
City: Tacoma, WA & Ashland, OR
Vessel Name: boatless, ex: Seeadler
Vessel Model: RAWSON 41
Join Date: Jun 2016
Posts: 2,234
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Quote:
Originally Posted by ghost
You have 3208’s right? I’ve had my entire cooling system off engine a couple times. Just fill it, let the temps come up and then check the main tank after it cools down. When the overflows are consistent in level in the morning I stop checking the main tank.
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Thanks. That's the plan.
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07-01-2020, 09:45 PM
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#10
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Guru
City: Tacoma, WA & Ashland, OR
Vessel Name: boatless, ex: Seeadler
Vessel Model: RAWSON 41
Join Date: Jun 2016
Posts: 2,234
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Quote:
Originally Posted by TowLou
Also watch temps as you run you kitty's. Of course
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07-01-2020, 09:50 PM
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#11
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Guru
City: Tacoma, WA & Ashland, OR
Vessel Name: boatless, ex: Seeadler
Vessel Model: RAWSON 41
Join Date: Jun 2016
Posts: 2,234
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Quote:
Originally Posted by Wayfarer
I'm glad I'm not the only one who had to read the title a few times before I got it... lol
WHAT IS THIS MAN DOING TO HIS PETS?!
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I love cats; taste just like chicken.
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07-01-2020, 09:57 PM
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#12
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Guru
City: Tacoma, WA & Ashland, OR
Vessel Name: boatless, ex: Seeadler
Vessel Model: RAWSON 41
Join Date: Jun 2016
Posts: 2,234
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Thanks to all. I knew what i wanted to do, but confirmation is invaluable.
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07-11-2020, 12:57 PM
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#13
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Guru
City: Tacoma, WA & Ashland, OR
Vessel Name: boatless, ex: Seeadler
Vessel Model: RAWSON 41
Join Date: Jun 2016
Posts: 2,234
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Today's riddle:
Got back to the boat today so i could try out all this good advice.
Checked coolant level, full, as always.
Ran engine about half hour, temp seemed stable at 140 (seems normal for idle),
Hoses to/from water heater hot.
Fluid level STILL CLEAR FULL!!??
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07-11-2020, 01:49 PM
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#14
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Senior Member
City: Portland, OR
Vessel Name: Serendipity
Vessel Model: 1977 37' Puget Trawler
Join Date: Feb 2019
Posts: 147
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Quote:
Originally Posted by Wayfarer
I'm glad I'm not the only one who had to read the title a few times before I got it... lol
WHAT IS THIS MAN DOING TO HIS PETS?!
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I figured veterinarian from the 1800s.
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07-11-2020, 07:00 PM
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#15
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Guru
City: Tacoma, WA & Ashland, OR
Vessel Name: boatless, ex: Seeadler
Vessel Model: RAWSON 41
Join Date: Jun 2016
Posts: 2,234
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Quote:
Originally Posted by WayneDana2
I figured veterinarian from the 1800s.
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Well, since you brought it up. When i took high school Anatomy + Physiology in 1961, we dissected...cats. They sold them by the barrel.
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07-11-2020, 08:43 PM
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#16
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Senior Member
City: Portland, OR
Vessel Name: Serendipity
Vessel Model: 1977 37' Puget Trawler
Join Date: Feb 2019
Posts: 147
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Quote:
Originally Posted by AlaskaProf
Well, since you brought it up. When i took high school Anatomy + Physiology in 1961, we dissected...cats. They sold them by the barrel.
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Ya mean the Dark Ages before the 1800s?
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07-13-2020, 08:56 PM
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#17
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Guru
City: Tacoma, WA & Ashland, OR
Vessel Name: boatless, ex: Seeadler
Vessel Model: RAWSON 41
Join Date: Jun 2016
Posts: 2,234
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Latest report:
What we in aviation call an FCF, functional check flight. Extended idle warmup, two hours at increasing power settings, engine temps moved in sync (port engine not involved in water heater install). Temps stable at 180f
Back at dock, opened starboaard tank fill (with careful precautions). Tank belched, but still appears full. ??
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07-13-2020, 11:22 PM
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#18
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Guru
City: Sydney
Vessel Name: Sojourn
Vessel Model: Integrity 386
Join Date: Oct 2011
Posts: 13,329
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Quote:
Originally Posted by AlaskaProf
Well, since you brought it up. When i took high school Anatomy + Physiology in 1961, we dissected...cats. They sold them by the barrel.
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Dead or alive?
__________________
BruceK
2005 Integrity 386 "Sojourn"
Sydney Australia
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07-13-2020, 11:42 PM
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#19
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Senior Member
City: Portland, OR
Vessel Name: Serendipity
Vessel Model: 1977 37' Puget Trawler
Join Date: Feb 2019
Posts: 147
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Quote:
Originally Posted by AlaskaProf
Latest report:
What we in aviation call an FCF, functional check flight. Extended idle warmup, two hours at increasing power settings, engine temps moved in sync (port engine not involved in water heater install). Temps stable at 180f
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Climbout in AB4? Now that I would like to see.
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07-14-2020, 04:50 PM
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#20
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Guru
City: Tacoma, WA & Ashland, OR
Vessel Name: boatless, ex: Seeadler
Vessel Model: RAWSON 41
Join Date: Jun 2016
Posts: 2,234
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Quote:
Originally Posted by WayneDana2
Climbout in AB4? Now that I would like to see.
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Sit down, shut up, and don't touch anything red.
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