Boat Maintenance: Mercruiser 4.3l Alpha 1 gen 2 overheat
(Logan Martin Lake Specific)
4,282 messages
Updated 2/25/2019 1:13:04 PM
Lakes Online Forum
62,933 messages
Updated 10/17/2019 9:51:06 PM
Lakes Online Forum
5,011 messages
Updated 10/17/2019 11:15:15 AM
(Logan Martin Lake Specific)
124 messages
Updated 3/20/2014 8:15:34 PM
Lakes Online Forum
3,924 messages
Updated 10/2/2019 1:42:37 PM
Lakes Online Forum
4,167 messages
Updated 8/4/2019 9:30:28 PM
Lakes Online Forum
2,910 messages
Updated 11/27/2018 1:44:10 PM
Lakes Online Forum
77 messages
Updated 4/15/2019 10:08:33 AM
Logan Martin Lake 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
Logan Martin Lake News
Logan Martin Lake Photos
Logan Martin Lake Videos

About Us
Contact Us
Site Map
Search Site
Advertise With Us
   
www.LoganMartin.info
THE LOGAN MARTIN LAKE WEBSITE

Copyright 2019, Lakes Online
Privacy    |    Legal