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05-19-2021, 03:05 PM
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#1
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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120 Diesel Lehman Over heating
May I ask all of you experienced and knowledgeable folks to take a look at my video of my motor running and the Coolant reservoir "Burping" and comment if this is "Normal"
And if it isn't I'd, sure be grateful for any constructive comments and suggestions as to where I can find the culprit......
Thanks
Tom McBride
Long Beach
Shoreline Marina.
https://drive.google.com/drive/folders/1FRLH4lPt2l-U2LKLyUI27h_mAYHtEXci?usp=sharing
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05-20-2021, 05:02 PM
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#2
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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I suspect I have a compromised Head Gasket .
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05-20-2021, 05:11 PM
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#3
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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 could not see the video since it wants me to sign in. But I would call Brian at American Diesel. He is the man as far as Lehmans go. 804-435-3107
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you aren’t one, there is no explanation possible.
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05-20-2021, 05:13 PM
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#4
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 5,017
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you should set the Drive for no request needed as some may not click on it.
I do not see any overheat issue from that, with rad cap off that is what they all do. Burping air suggests you need to bleed it.
1st video at 48 second mark your left hand is beside the petcock. With engine off have you bled the air out of there? open it and let out air until only water comes out.
Your temp gauge was around 120, it is not up to operating temp until about 170-180.
Rad caps. If you are loosing water after operation, replace caps.
There may be more to it, but reply to this first.
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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05-20-2021, 05:28 PM
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#5
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 5,017
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__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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05-20-2021, 05:32 PM
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#6
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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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Quote:
Originally Posted by Soo-Valley
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They wouldn’t play, problem with the video or the like on both links. Could be because I am on my iPad.
__________________
Boat Nut:
If you are one there is no explanation necessary.
If you aren’t one, there is no explanation possible.
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05-20-2021, 05:35 PM
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#7
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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Sorry folks,
I just realized my error and have OPENED sharing!
Thank you ALL for your assistance
TM
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05-20-2021, 05:42 PM
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#8
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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Thank you for your reply,
Answers and comments below
Quote:
Originally Posted by Soo-Valley
you should set the Drive for no request needed as some may not click on it.
DONE Thank you for the suggestion
I do not see any overheat issue from that, with rad cap off that is what they all do. Burping air suggests you need to bleed it.
OK, I thought I bled it correctly,
I left the air nipple on the Exhaust Manifold open and filled the reservoir until it "peed out, then closed it and then started the motor
1st video at 48 second mark your left hand is beside the petcock. With engine off have you bled the air out of there? open it and let out air until only water comes out.YES I have done this procedure
Your temp gauge was around 120, it is not up to operating temp until about 170-180.
OK, good to know, I may have been "hasty. I'll attempt run the motor again and get it up to operating temp
Rad caps. If you are loosing water after operation, replace caps.
Noted
There may be more to it, but reply to this first.
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05-20-2021, 05:45 PM
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#9
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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Quote:
Originally Posted by Comodave
I could not see the video since it wants me to sign in. But I would call Brian at American Diesel. He is the man as far as Lehmans go. 804-435-3107
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Thank you...NOTED
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05-20-2021, 05:51 PM
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#10
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 5,017
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Tom,
Do the bleed again and fill the reservoir, rad cap on and run up to operating temp. If possible do a short run at cruise, return, let it cool and see if you lost any fluid.
As suggested a head gasket issue would do more than a few burps. as it heats there will be water expansion which is seen as it overflows.
As you can see I am hoping it is not head gasket.
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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05-20-2021, 05:52 PM
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#11
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Senior Member
City: Victoria, BC
Vessel Name: Waves of Grace
Vessel Model: Universal 36
Join Date: Aug 2012
Posts: 143
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Did the engine actually overheat?
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05-20-2021, 05:58 PM
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#12
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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Quote:
Originally Posted by Soo-Valley
Tom,
Do the bleed again and fill the reservoir, rad cap on and run up to operating temp. If possible do a short run at cruise, return, let it cool and see if you lost any fluid.
As suggested a head gasket issue would do more than a few burps. as it heats there will be water expansion which is seen as it overflows.
As you can see I am hoping it is not head gasket.
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This is a GREAT suggestion, I wonder if I've been too hasty thinking that there is a Head gasket compromise, I WILL do as you have suggested and ensure that there is NO AIR remaining in the system before "jumping to conclusions"
Additionally, I appreciate your concern and hopes that it is not a HG Issue
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05-20-2021, 06:07 PM
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#13
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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Quote:
Originally Posted by hobbystuff
Did the engine actually overheat?
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So, This is good question and Yes,
It did on two different occasions.
I warmed the motors as usual for about half an hour before going underway, leaving the marina operating temps approx. 120f, (Normal)
then while underway (idling) after leaving the marina and bumping up the RPM easily outside of the no wake zone (never aggressively or excessively,
the Overheating alarm sounded and the temp gauge showed 220f (ish)
I immediately shut it down and left the other motor running to get me back to my dock,
I went below and my catch basin was FULL of Coolant and Water and the Reservoir was empty.
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05-20-2021, 06:23 PM
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#14
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 5,017
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Quote:
Originally Posted by Tom Foolery
So, This is good question and Yes,
It did on two different occasions.
I warmed the motors as usual for about half an hour before going underway, leaving the marina operating temps approx. 120f, (Normal)
then while underway (idling) after leaving the marina and bumping up the RPM easily outside of the no wake zone (never aggressively or excessively,
the Overheating alarm sounded and the temp gauge showed 220f (ish)
I immediately shut it down and left the other motor running to get me back to my dock,
I went below and my catch basin was FULL of Coolant and Water and the Reservoir was empty.
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This last bit changes it up a bit. If it overheats away from dock shut down, you can always restart to dock.
Other things can be raw water impeller, heat exchanger, hoses, thru hull. Still not seeing the head gasket looking at video.
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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05-20-2021, 06:25 PM
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#15
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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Additionally,
I have inspected ALL hoses and looked for any collapsing hoses, inspecting for integrity, cracks, leaks, rips or tears.
I have removed just about every cooling hose looking for any obstructions or anything that would restrict water coolant/flow.
Cleaned out ALL coolers (Oil and Transmission)
Took a brass gun cleaner and cleaned ALL small holes removing any (calcium?)
Build-up.
Removed flushed, cleaned and reinstalled my Coolant Reservoir.
Removed and tested my thermostat testing it to boiling water and watched it operate and open as it heated up to temp. (Worked perfectly) drain hole in thermo clean and clear - reinstalled.
Removed Front Exhaust Manifold cover (replaced gasket) and Rear manifold cover (replaced gasket) and inspected and cleaned Exhaust Elbow as well as the salt water elbow (gasket replaced)
No obstructions in the Exhaust manifold and was bale to see adequate light all the way thru.
Re-assured by my bottom cleaner that the strainer has no obstructions where the water coms into feed the Jabsco impellers.
Checked and removed that hose inspected.
Removed and replaced my rubber Jabsco impeller.
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05-20-2021, 06:29 PM
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#16
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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Answer in red typing:
Quote:
Originally Posted by Soo-Valley
This last bit changes it up a bit. If it overheats away from dock shut down, you can always restart to dock.
Yes, I did restart it to assist me in docking it as I have yet to try to dock my vessel with only one motor.
I know it can be done and I should practice more but your comment is noted, thank you.
Other things can be raw water impeller, heat exchanger, hoses, thru hull. Still not seeing the head gasket looking at video.
Yes, please see my post just above I just adressed these items. Thank you
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05-20-2021, 06:32 PM
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#17
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Senior Member
City: Victoria, BC
Vessel Name: Waves of Grace
Vessel Model: Universal 36
Join Date: Aug 2012
Posts: 143
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Quote:
Originally Posted by Tom Foolery
So, This is good question and Yes,
It did on two different occasions.
I warmed the motors as usual for about half an hour before going underway, leaving the marina operating temps approx. 120f, (Normal)
then while underway (idling) after leaving the marina and bumping up the RPM easily outside of the no wake zone (never aggressively or excessively,
the Overheating alarm sounded and the temp gauge showed 220f (ish)
I immediately shut it down and left the other motor running to get me back to my dock,
I went below and my catch basin was FULL of Coolant and Water and the Reservoir was empty.
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So here is my view.
(a) Perhaps some good news - I listened to the video you posted and the engine sounded pretty normal even after overheating. I experienced a scored #6 cylinder after a mild overheat following work from a local mechanic. We ended up with piston slap that was quite obvious - I didn't hear that on your video, so hopefully that is good news.
(b) If the engine overheated and pushed coolant out I suspect you need to do the fill/bleed cycle a few times to get all the air out as was suggested above.
Bottom line though - you need to look in to why the engine overheated - start with the raw water system and look at the heat exchanger for sure.
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05-20-2021, 06:45 PM
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#18
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 5,017
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Quote:
Originally Posted by hobbystuff
So here is my view.
(a) Perhaps some good news - I listened to the video you posted and the engine sounded pretty normal even after overheating. I experienced a scored #6 cylinder after a mild overheat following work from a local mechanic. We ended up with piston slap that was quite obvious - I didn't hear that on your video, so hopefully that is good news.
(b) If the engine overheated and pushed coolant out I suspect you need to do the fill/bleed cycle a few times to get all the air out as was suggested above.
Bottom line though - you need to look in to why the engine overheated - start with the raw water system and look at the heat exchanger for sure.
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That is what I saw and heard. Tom is ready to do a test run under load after another air bleed and fill. Again watch those rad caps, mine were replaced when I could not find any reason for water loss and now no water loss. They are only 4lb rad caps
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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05-20-2021, 07:18 PM
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#19
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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Quote:
Originally Posted by Soo-Valley
That is what I saw and heard. Tom is ready to do a test run under load after another air bleed and fill. Again watch those rad caps, mine were replaced when I could not find any reason for water loss and now no water loss. They are only 4lb rad caps
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Thanks, I'll give it GO and Let Ya'll know.
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05-20-2021, 07:20 PM
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#20
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Member
City: Long Beach
Vessel Name: Miller Time
Vessel Model: 36' Grand Banks
Join Date: May 2016
Posts: 19
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Reply in red below:
Quote:
Originally Posted by hobbystuff
So here is my view.
(a) Perhaps some good news - I listened to the video you posted and the engine sounded pretty normal even after overheating. I experienced a scored #6 cylinder after a mild overheat following work from a local mechanic. We ended up with piston slap that was quite obvious - I didn't hear that on your video, so hopefully that is good news.I'd say THIS is good news yes.
(b) If the engine overheated and pushed coolant out I suspect you need to do the fill/bleed cycle a few times to get all the air out as was suggested above.
Noted and thanks!
Bottom line though - you need to look in to why the engine overheated - start with the raw water system and look at the heat exchanger for sure.
Noted and will do. Thanks
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