BoaterEd Store      - Help Support This Forum - Join Today!      Hunting/Fishing Stuff
Save Password


Active Topics | Active Polls | Resources | Members | Online Users | Avatar Legend | Statistics
[ Active Members: 2 | Guests: 93 ]  [ Total: 95 ]  [ Newest Member: Farm ]
 All Forums
 Engines, Electric, Plumbing, etc.
 Overheated Engine
 New Topic |   New Poll New Poll |   Reply to Topic | 
Author Previous Topic: MPI troubleshooting help Topic Next Topic: Replacement switches  


RO# 33655

Posted - Jun 06 2018 :  11:16:43  Show Profile  Reply with Quote

2007 3.0L Mercruiser I/O. Top cooling hose came off and because of radio on and in the process of passing some boats I did not hear the high temp alarm.

Engine died and I coasted to the dock. Got a tow back to ramp. Engine ran maybe a minute or two with alarm on, not really sure.

Found out the hose clamp corroded (stainless steel?, yea right)and broke, so I replaced and started engine in driveway. Engine appeared to run just fine. Oil pressure OK, cooling temp went up and then stabilized at normal running temp. All looks good.

Anything hidden that I should be concerned about that might have been mucked up when it was running w/o cooling for a minute or two?

Edited by - racer57 on Jun 06 2018 11:18:41

Homeport: NC


RO# 842

Posted - Jun 06 2018 :  13:33:06  Show Profile  Reply with Quote
Other than burning the rubber exhaust hoses I wouldn't worry


Homeport: Gulf Coast FL Go to Top of Page


RO# 3300

Posted - Jun 06 2018 :  14:53:21  Show Profile  Reply with Quote
Run it til something goes wrong, IF something goes wrong. What else can you do. Have fun but be aware.


There is much to be said, in a world like ours, for taking the world as you find it and fishing with a worm.-Bliss Perry, 1904

Homeport: Ca Go to Top of Page


RO# 28365

Posted - Jun 06 2018 :  15:23:56  Show Profile  Reply with Quote
Originally posted by jtybt15

Run it til something goes wrong, IF something goes wrong. What else can you do. Have fun but be aware.

Solid advice.
Id pull the dipstick and see how the oil looks, and the plugs to see if there is any sign of water from a blown head gasket.
If all looks well, enjoy the boat.

2002 Sea Ray 410 Sundancer
95 Eastern 22'
05 Maxum 18' Bowrider
C6 Corvette Convertible
68 GTO

Homeport: Farmingdale NY Go to Top of Page


RO# 1159

Posted - Jun 06 2018 :  16:09:49  Show Profile  Reply with Quote
That's a shame. Hope that was in fresh water so the engine , pulleys, alternator, starter,engine mounts, etc. didn't get soaaked with SW.

Bruce mentioned the exhaust hoses. Especially if this was at cruise RPM the exhaust hoses may look OK on the outer surface but could be burned much of the way through or crispy brittle on the inside.

Checking oil for milkiness is certainly wise as well. I might retorque the manifold riser/elbow fasteners as well due to extreme expansion & contraction of overheated cast parts there.

Hope everything remains fine for continued happy boating. But also strongly advise checking tightness and condition of every hose clamp on the boat at layup and commissioning. Particulalry the ones you think you can't reach but really can with a little pain. Obviously you'd want to replace any that look at all suspect to avoid a potential repeat with worse consequences.

FWIW- The "5 in 1" or better "10 in 1", screwdrivers' hollow shaft nut driver function is excellent for checking most common hose clamp hex heads tightness. They are the most-used tools by far on my boat.


Homeport: The Vineyard Go to Top of Page


RO# 5358

Posted - Jun 07 2018 :  03:45:56  Show Profile  Reply with Quote
Assuming everything else OK I would also change the oil and filters as the oil probably overheated and may not lubricate as well as it should which could accurate any damage that may have been done

Homeport: Fremantle Go to Top of Page


RO# 33655

Posted - Jun 11 2018 :  08:50:45  Show Profile  Reply with Quote
Thanks all for your advice. I checked the oil, still almost clear since less than 30 hours on it and there was no adverse odor. I thoroughly rinsed everything in the engine compartment with fresh water. Then took it out Saturday for a test run and everything seemed to be shipshape.

Frustrating part is that I did check the tightness of all clamps since this did happen before. I didn't check the presence of rust underneath though. Since, I thought, they were stainless steel, didn't have to worry since they were replaced only 3 years ago. Live and learn.

Homeport: NC Go to Top of Page


RO# 7357

Posted - Jun 11 2018 :  10:28:17  Show Profile  Reply with Quote
Why not double clamp your hoses?

Homeport: VA Go to Top of Page


RO# 15782

Posted - Jun 11 2018 :  10:47:06  Show Profile  Reply with Quote
If it was salt water, and it got into pulleys and drive belt(s), do a very thorough cleaning. Maybe replace the belt(s) so there isn't any salt trapped in the porous surfaces that meet the pulleys. We had a circulation pump leak and I "rinsed" but didn't go into deep effort. Ended up replacing all the pulleys. Not cheap, even with used parts. If the contact surfaces get pitted, the engine will wear belts out VERY fast.

God Bless, jd
1996 Sea Ray 215EC
357CID/4V/275HP RWC 1G408541 Alpha1G2 1.62 14-1/2*23*3 Aluminum

Homeport: Sunny Florida Go to Top of Page

Brite Idea

RO# 12714

Posted - Jun 14 2018 :  08:21:02  Show Profile  Reply with Quote
as a fellow saltwater boater when you finish for the day after the engine cools down spray everything with WD40 as per my mechanic. I've been doing this for years and everything looks good. WD40 evaporates off the next time you use the boat so no buildup.

Homeport: Copiague, N.Y. Go to Top of Page


RO# 5015

Posted - Jun 19 2018 :  07:29:25  Show Profile  Reply with Quote
Stainless steel comes in various mixtures of nickel and other metals. The burner of most gas grills rusts yet it is SS.

So there are cheap and quality mixtures and all are called SS.

Flatware for your dining table often lists what mix of SS the flatware is. Not much else lists the mix.

Homeport: Hyde Park, NY Go to Top of Page
  Previous Topic: MPI troubleshooting help Topic Next Topic: Replacement switches  
 New Topic |   New Poll New Poll |   Reply to Topic | 
Jump To:
BoaterEd © BoaterEd Go To Top Of Page
This page took 0.39 seconds to load
Forum Guidelines and Privacy Notice