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06-09-2017, 05:28 AM
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#1
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Guru
City: Jupiter, Florida
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,644
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Delay on impeller replacement
Replaced my port impeller last weekend, no issues. However, a slight emergency made me leave the boat without opening the raw water intake or turning the engine. So, impeller has been sitting in there all week with only some lube on the veins, a couple of veins aimed "backwards", not in the proper turning direction. Going back tonight to finish up and replace other impeller....any harm done by the delay?
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06-09-2017, 06:06 AM
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#2
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Member
City: Poulsbo, WA
Vessel Name: MITKOF ISLE
Vessel Model: '76 CHB 34' DC
Join Date: Oct 2011
Posts: 17
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No. The impeller doesn't know or care that its installation got interrupted. It'll be fine.
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06-09-2017, 07:23 AM
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#3
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Guru
City: Jupiter, Florida
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,644
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Thanks. I hope I get there before anyone tells it. .
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06-09-2017, 07:33 AM
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#4
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Guru
City: Quebec
Vessel Name: Bleuvet
Vessel Model: Custom Built
Join Date: Jan 2016
Posts: 4,375
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If your emergency was due to the boat being on fire, your impeller may have been damaged
L.
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06-09-2017, 07:46 AM
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#5
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Guru
City: gulf coast
Join Date: Jun 2014
Posts: 3,440
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Impeller vanes will align themselves correctly when started.
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06-09-2017, 10:02 AM
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#6
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Guru
City: Jupiter, Florida
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,644
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Thanks guys. Lou, luckily the fire was on the port side of the boat only. We're cool. . I think my concern is or was more about running the impeller while dry. Thought maybe it sitting there for a week the lube would have dried up or soaked in, whatever. Has to draw water up from closed seacock and thought it may hurt. Not sure I have to close the seacock really as I can't say if the pump is below waterline. It's close but not sure.
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06-09-2017, 11:01 AM
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#7
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Guru
City: st pete
Vessel Model: 430 Mainship
Join Date: Sep 2016
Posts: 3,502
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Quote:
Originally Posted by bayview
Impeller vanes will align themselves correctly when started.
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It's also easy to align them during the install. Just put a band around them and tighten enough, with vanes in the correct position, to just slide half way in and release the band. Easy.
__________________
Seevee
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06-09-2017, 11:07 AM
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#8
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TF Site Team
City: California Delta
Vessel Name: FlyWright
Vessel Model: 1977 Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 13,728
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No worries...it'll be fine. My engines sometimes requires a short bump in power initially to prime the pump and get the flow started.
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06-09-2017, 12:01 PM
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#9
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Guru
City: Stuart FL
Vessel Name: Lucky Lucky
Vessel Model: Pacific Mariner 65
Join Date: Aug 2013
Posts: 2,760
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Open the seacock before you start the engine!
__________________
Howard
Lucky Lucky
Stuart, FL
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06-09-2017, 05:04 PM
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#10
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Guru
City: Jupiter, Florida
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,644
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Quote:
Originally Posted by hmason
Open the seacock before you start the engine!
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1) Been repeating that to myself every hour, on the hour. Have an alarm set to wake me up every hour during the night so I can repeat it then.
2) Used my label maker to put "OPEN SEACOCK" on the boat key. Also put one on each lens in my eye glasses. Reversed so I can read it.
3) Got a small tattoo on the back of both of my hands. "Open Seacock" is on the left hand. On the right hand I got one that says "PLEASE READ LEFT HAND". Had the guy add a Harley with "Ride Free or Die" underneath both of them so I will at least look a little bad ass for the rest of my life.
4) Called marina and had them change my gate access code to 6736*7322625 which of course spells, you got it, "Open Seac...."
You get my point. I'm trying real hard to remember to open the friggin seacock.
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06-09-2017, 05:10 PM
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#11
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Enigma
City: Slicker?
Join Date: Oct 2007
Posts: 16,566
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Greetings,
Mr. f. Open sea cock AND keep an eye on your shoes...
__________________
RTF
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06-09-2017, 05:48 PM
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#12
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Guru
City: Jupiter, Florida
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,644
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Well it was leaking a few drops when I closed it...thru hull maintenance...on the list for when I pull the boat for AF paint in a couple of months. All of them need a little tending to. I bet you guys are REALLY looking forward to me flushing out the cooling system and AC units with some Barnacle Buster. Admit it. VERY excited aren't you? Hey, us newbies keep you fresh.
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06-09-2017, 08:39 PM
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#13
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Senior Member
City: Tasmania
Vessel Model: Old Town Loon
Join Date: Jul 2015
Posts: 218
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I've always taped a piece of paper with Seacock on it to the battery (turned off) switch of any engine/generator that I have close the seacock on for some reason. I don't take it off to turn the switch on until I check and open the seacock, sometimes twice (OCD).
Never used one but I recon one of these tools would be fantastic for changing impellers.
Impeller Installation Tool
Coupled with liberal amounts of Dow Corning Compound 4. I love that stuff for any rubber parts, orings etc.
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06-09-2017, 09:48 PM
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#14
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Moderator Emeritus
City: Au Gres, MI
Vessel Name: Black Dog
Vessel Model: Formula 41PC
Join Date: Jul 2015
Posts: 21,191
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I have one of the impeller changing tools. Works great. My starboard engine water pump is almost impossible to access. With that tool, I can actually get the impeller changed in about 20 minutes. Love it.
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06-09-2017, 10:12 PM
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#15
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Guru
City: Stuart FL
Vessel Name: Lucky Lucky
Vessel Model: Pacific Mariner 65
Join Date: Aug 2013
Posts: 2,760
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Quote:
Originally Posted by RT Firefly
Greetings,
Mr. f. Open sea cock AND keep an eye on your shoes...
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I forgot to mention that. Thanks for reminding us.
__________________
Howard
Lucky Lucky
Stuart, FL
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06-10-2017, 06:15 AM
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#16
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Guru
City: Palm Coast
Vessel Name: Southerly
Vessel Model: 1986 Marine Trader 36' Sundeck
Join Date: Aug 2016
Posts: 1,231
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Personally my experience with impellers would have made me throw that one away and put a brand new one in. I am not getting stuck out in the ocean changing an impeller AGAIN anytime soon.
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06-10-2017, 08:18 AM
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#17
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Guru
City: Jupiter, Florida
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,644
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Quote:
Originally Posted by Jetstream
Never used one but I recon one of these tools would be fantastic for changing impellers.
Impeller Installation Tool
Coupled with liberal amounts of Dow Corning Compound 4. I love that stuff for any rubber parts, orings etc.
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Thanks, not much of a website for ordering, you have to call them. Looks like a very reasonable items as compared to the WM type impeller pullers. I have to say that, maybe because of size/location, it wasn't very difficult to pull or install mine. Pliers...right out....little lube and slid back in.
Is the Dow Corning Compound 4 overkill for this particular job? Seems relatively expensive at $20 +- a tube... is there a benefit to it in this application that makes it better than other lubes/grease?
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06-10-2017, 08:20 AM
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#18
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Guru
City: Jupiter, Florida
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,644
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Quote:
Originally Posted by Donna
Personally my experience with impellers would have made me throw that one away and put a brand new one in. I am not getting stuck out in the ocean changing an impeller AGAIN anytime soon.
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You sound like...ME! Paranoid about engines and their issues...
I see you are "down here" Donna...tired of the rain yet?!?! I know its a good thing in the long run but how about a break with a day or two of sun???
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06-10-2017, 08:32 AM
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#19
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TF Site Team
City: Jacksonville
Join Date: Nov 2008
Posts: 11,682
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Quote:
Originally Posted by firstbase
... I'm trying real hard to remember to open the friggin seacock.
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When we close the engine seacock, we hang the key on the handle. When I retrieve the key, I open the seacock. No tattoos or labels.
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06-10-2017, 09:16 AM
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#20
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Guru
City: Jupiter, Florida
Vessel Name: Black Eyed Susan
Vessel Model: Grand Banks 42' Classic
Join Date: Nov 2016
Posts: 1,644
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Quote:
Originally Posted by Larry M
When we close the engine seacock, we hang the key on the handle. When I retrieve the key, I open the seacock. No tattoos or labels.
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Hmmm...well...I guess I could do that. Still want to keep my "Ride Free or Die" tattoo though. You know, bad ass and all...
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