Boat Maintenance: Mercruiser 4.3l Alpha 1 gen 2 overheat
(Lake Rousseau Specific)
1 messages
Updated 2/16/2011
Lakes Online Forum
84,070 messages
Updated 10/30/2024 8:48:25 AM
Lakes Online Forum
5,204 messages
Updated 9/14/2024 10:10:50 AM
(Lake Rousseau Specific)
1 messages
Updated 2/16/2011
Lakes Online Forum
4,172 messages
Updated 9/9/2024 5:04:44 PM
Lakes Online Forum
4,261 messages
Updated 5/28/2024 6:31:10 AM
Lakes Online Forum
2,979 messages
Updated 6/26/2024 5:03:03 AM
Lakes Online Forum
98 messages
Updated 4/15/2024 1:00:58 AM
Lake Rousseau Photo Gallery





    
Welcome, Guest Select View Mode: [ classic | beta | recent ]
Name:   Shortbus The author of this post is registered as a member - Email Member
Subject:   Mercruiser 4.3l Alpha 1 gen 2 overheat
Date:   6/1/2018 3:40:53 PM

Was idling engine and starboard riser was getting too hot to touch, port cool.

Engine usually never over 150 was at 180-185.

Replaced 7 year old impeller.

Boat running at 35 mph temp 175.

Cold risers just after running long and fast.

Idle seems to bring engine temp down to 140-150 but starboard riser will get warmer than the other, maybe hot if idles long enough.

Have ordered riser gasket and thermostat kit.  All running fine after impeller but temp not as low as it was.

Any boat geniuses out there?

Other messages in this thread:View Entire Thread
Mercruiser 4.3l Alpha 1 gen 2 overheat - Shortbus - 6/1/2018 3:40:53 PM
     Mercruiser 4.3l Alpha 1 gen 2 overheat - GoneFishin - 6/1/2018 4:58:58 PM
          Mercruiser 4.3l Alpha 1 gen 2 overheat - CAT BOAT - 6/2/2018 9:38:25 AM
               Mercruiser 4.3l Alpha 1 gen 2 overheat - GoneFishin - 6/3/2018 8:26:35 AM
                    Mercruiser 4.3l Alpha 1 gen 2 overheat - Shortbus - 6/3/2018 9:06:45 AM
                         Mercruiser 4.3l Alpha 1 gen 2 overheat - Shortbus - 6/7/2018 4:10:06 PM



Quick Links
Lake Rousseau News
Lake Rousseau Photos
Lake Rousseau Videos




About Us
Contact Us
Site Map
Search Site
Advertise With Us
   
Rousseau.LakesOnline.com
THE LAKE ROUSSEAU WEBSITE

Copyright 2024, Lakes Online
Privacy    |    Legal