Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-03-2016, 10:40 PM   #1
Ensign
 
Join Date: Oct 2015
Posts: 3
Default 2004 2000 sr3 overheating

My 2004 2000 sr3 is overheating. It has the 5.0 MerCruiser engine btw. My first thought was the impeller in the outdrive. I replaced that and it has made no difference. Assuming I replaced the outdrive impeller correctly, what is the next place to look? My friend said there are 2 impellers. A second one near the water pump. But I have seen this one. Could the thermostat cause this? Is there a second impeller to change? Is there a way to test the impeller I just changed out?

Sad boater.
__________________

Bitofhog is offline   Reply With Quote
Old 07-04-2016, 03:18 AM   #2
Admiral
 
mmwjr's Avatar
 
Join Date: Feb 2012
Location: Perry Hall, Maryland
Posts: 6,118
Default

First you did not say what drive you have but since you said you changed the drive impeller it must be an Alpha.

Try removing the hose at the t-stat housing that comes from the transom assembly, should be the large hose on the port side. Start the engine to see if water is pumping out. If you have flow the impeller in the drive is working.

Only one impeller but the is a circulating water pump on the engine. Yes it could be the t-stat or clogged exhaust manifolds or elbows.

I would use a IR temp sensor and measure the t-stat housing and exhaust to see what everything is running at.
__________________
Mike
mmwjr is offline   Reply With Quote
Reply

Tags
2000 sr3, impeller, overheating

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 12:33 AM.


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