Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-26-2018, 09:37 PM   #11
Ensign
 
Join Date: Jan 2016
Posts: 14
Default

I am assuming Freshwater cooled, as he said the impeller was replaced recently...

I can only assume that a closed system wouldn't have an impeller...

bigbuddy
__________________

Bigbuddy is offline   Reply With Quote
Old 06-26-2018, 11:10 PM   #12
Lt. JG
 
Join Date: Sep 2016
Posts: 44
Default Impeller

They still have impellers in the sea-water pumps on closed cooling systems.
__________________

dannyrayz is offline   Reply With Quote
Old 06-27-2018, 01:13 AM   #13
Ensign
 
Join Date: Jan 2016
Posts: 14
Default

O.K. I did not realize that.

bigbuddy
Bigbuddy is offline   Reply With Quote
Old 06-27-2018, 01:20 AM   #14
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Perry Hall, Maryland
Posts: 6,388
Default

Quote:
Originally Posted by Bigbuddy View Post
O.K. I did not realize that.

bigbuddy
Yes both systems use an impeller. On a closed system the impeller pumps sea water through the heat exchanger and exhaust. On an open system it draws in sea water to the engine and exhaust while the engine circulating pump move it through the engine.
__________________
Mike
mmwjr is offline   Reply With Quote
Old 06-27-2018, 03:04 PM   #15
Moderator

 
Join Date: Apr 2008
Posts: 4,118
Default

You'd be able to tell. Is there a large black cylindrical canister on the top of the engine right above the belts just shy of 2 feet long and maybe 6" in diameter?

If so that is your heat exchanger and would indicate it is a closed cooling (freshwater (antifreeze) cooled). If not, then it is raw water cooled.
shrew is offline   Reply With Quote
Old 07-20-2018, 01:11 AM   #16
Ensign
 
Join Date: Jan 2016
Posts: 14
Default drove 450 miles, but still looking

For any who took part in this topic, We went to see the boat, which was in the water, and looked it over, went for a test ride, and then I told him that I wanted to see the boat out of the water....
The interior was , as I expected, in very good condition... (the boat was very well taken care of)
Out of the water; was a little different story... scummy, a little crusty, some dock rash, and other battle scars...
Seeing the outside made me re-think of what I couldn't see: inside the engine, water lines, impeller, etc.

So, Still looking
Bigbuddy
Bigbuddy is offline   Reply With Quote
Old 07-20-2018, 01:23 AM   #17
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Perry Hall, Maryland
Posts: 6,388
Default

Good luck with the search.
__________________

__________________
Mike
mmwjr is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 09:49 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.