Reply
 
Thread Tools Search this Thread
 
Old 03 February 2008, 16:12   #1
Member
 
Country: Ireland
Town: cork
Boat name: none
Make: HUMBER DESTROYER 5.8
Length: 5m +
Engine: 140HP sUZUKI
Join Date: Dec 2007
Posts: 262
Suzuki 140hp overheat

anyone have any overheat problems with suzuki 140hp 4 stroke.
Have a look and see what you think. any suggestions? is this ok or not? engine be ok?
SERVICE DATA,,,
,Item,Data,Unit
,ENGINE SPEED,0,rpm
,IGNITION TIMING,BTDC 11,
,MANIFOLD ABSOLUTE PRESSURE,738,mmHg
,MANIFOLD ABSOLUTE PRESSURE,98.4,kPa
,MANIFOLD ABSOLUTE PRESSURE,29.1,inHg
,BAROMETRIC PRESSURE,738,mmHg
,BAROMETRIC PRESSURE,98.4,kPa
,BAROMETRIC PRESSURE,29.1,inHg
,CYLINDER TEMPERATURE,6,C
,CYLINDER TEMPERATURE,43,F
,INTAKE AIR TEMPERATURE,6,C
,INTAKE AIR TEMPERATURE,42,F
,BATTERY VOLTAGE,11.79,V
,FUEL INJ. PULSE WIDTH,0,s
,INJECTED FUEL AMOUNT,0,mcc
,FUEL PUMP DUTY,0,%
,IAC VALVE DUTY,0,%
,NO. OF MAP SENSOR FAILURE,0,times
,NO. OF CKP SENSOR FAILURE,0,times
,NO. OF IAC VALVE FAILURE,0,times
,NO. OF CMP SENSOR FAILURE,0,times
,NO. OF CTP SWITCH FAILURE,0,times
,NO. OF CYL. TEMP. SNSR FAILURE,0,times
,NO. OF IAT SENSOR FAILURE,0,times
,NO. OF EX. TEMP. SNSR FAILURE,0,times
,NO. OF FUEL INJECTOR FAILURE,0,times
,NO. OF OVER-REVOLUTION,0,times
,NO. OF LOW BATTERY VOLTAGE,0,times
,NO. OF LOW OIL PRESSURE,0,times
,NO. OF OVERHEAT(GRADIENT),2,times
,NO. OF OVERHEAT(TEMP.),4,times
,CAUTION SYSTEM NAME (1),Overheat temp.,
,ENGINE SPEED (1),0,rpm
,MANIFOLD ABSOLUTE PRESSURE (1),757,mmHg
,MANIFOLD ABSOLUTE PRESSURE (1),100.9,kPa
,MANIFOLD ABSOLUTE PRESSURE (1),29.83,inHg
,CYLINDER TEMPERATURE (1),130,C
,CYLINDER TEMPERATURE (1),267,F
,INTAKE AIR TEMPERATURE (1),30,C
,INTAKE AIR TEMPERATURE (1),85,F
,EX-MANI TEMPERATURE (1),125,C
,EX-MANI TEMPERATURE (1),257,F
,FAILURE TIME (1),146,h
,ELAPSE OF TIME (1),0,min
,CAUTION SYSTEM NAME (2),Overheat temp.,
,ENGINE SPEED (2),0,rpm
,MANIFOLD ABSOLUTE PRESSURE (2),768,mmHg
,MANIFOLD ABSOLUTE PRESSURE (2),102.4,kPa
,MANIFOLD ABSOLUTE PRESSURE (2),30.27,inHg
,CYLINDER TEMPERATURE (2),119,C
,CYLINDER TEMPERATURE (2),247,F
,INTAKE AIR TEMPERATURE (2),31,C
,INTAKE AIR TEMPERATURE (2),88,F
,EX-MANI TEMPERATURE (2),125,C
,EX-MANI TEMPERATURE (2),257,F
,FAILURE TIME (2),146,h
,ELAPSE OF TIME (2),0,min
,CAUTION SYSTEM NAME (3),Overheat temp.,
,ENGINE SPEED (3),0,rpm
,MANIFOLD ABSOLUTE PRESSURE (3),761,mmHg
,MANIFOLD ABSOLUTE PRESSURE (3),101.4,kPa
,MANIFOLD ABSOLUTE PRESSURE (3),29.97,inHg
,CYLINDER TEMPERATURE (3),119,C
,CYLINDER TEMPERATURE (3),247,F
,INTAKE AIR TEMPERATURE (3),32,C
,INTAKE AIR TEMPERATURE (3),89,F
,EX-MANI TEMPERATURE (3),125,C
,EX-MANI TEMPERATURE (3),257,F
,FAILURE TIME (3),146,h
,ELAPSE OF TIME (3),0,min
__________________

__________________
ciaranp is offline   Reply With Quote
Old 03 February 2008, 17:17   #2
Member
 
Cypman's Avatar
 
Country: UK - Isle of Man
Town: Douglas
Length: no boat
Join Date: Aug 2006
Posts: 337
Although originally a Cork man myself I am unable to fully understand your downloaded information!!! All I can advise is based on my own experience of owning a Suzuki DF140 and that is that the engine is designed to run at high operating temperatures. As a consequence I experienced 2 high temp audio alarms whilst flushing the engine, these were caused by low water pressure on one occasion and poorly fitting muffs on the other. No damage done!!
Your issue may be totally unrelated of course.
__________________

__________________
Cypman is offline   Reply With Quote
Old 03 February 2008, 17:41   #3
Member
 
Country: Ireland
Town: cork
Boat name: none
Make: HUMBER DESTROYER 5.8
Length: 5m +
Engine: 140HP sUZUKI
Join Date: Dec 2007
Posts: 262
thanks for that. Will check it out
__________________
ciaranp is offline   Reply With Quote
Old 03 February 2008, 23:29   #4
Member
 
Country: Canada
Town: Cowichan Bay
Boat name: Neptune
Make: Zodiac Hurricane
Length: 6m +
Engine: twin140 suzi 4stroke
Join Date: Oct 2005
Posts: 201
Check the impeller. I had a motor right out of the box that overheated when ever I went over 4500 rpms. Checked the impeller and it looked perfect so we changed the thermostat and the problems continued so changed the impeller and everything was fine. The suzuki 4strokes seem prone to over heats more than other outboards that I have run(Merc opti and yamaha 4stroke).
__________________
OceanEco is offline   Reply With Quote
Old 04 February 2008, 06:02   #5
Member
 
Country: Ireland
Town: cork
Boat name: none
Make: HUMBER DESTROYER 5.8
Length: 5m +
Engine: 140HP sUZUKI
Join Date: Dec 2007
Posts: 262
thanks for that info.maybe it just gave the heat warning when being flushed
__________________
ciaranp is offline   Reply With Quote
Old 04 February 2008, 08:50   #6
Member
 
Country: UK - Scotland
Boat name: Wildheart
Make: Humber/Delta Seasafe
Length: 5m +
Engine: Merc 60 Clamshell
MMSI: 235068449
Join Date: Apr 2007
Posts: 4,611
I'll echo cypman with the download info, but if i'm reading it right "EX-MANI TEMPERATURE 125C seems very low. Assuming I'm translating that right I would expect an exhaust manifold temp (or at least the exhaust gas inside it) to be in the region of 800-900C.

I guess if the "brain" detects low water pressure as OceanEco says it could be programmed to squeal the overheat alarm as an advanced warning so you don't actually cook it....... Low pressure when you're running full chat & a plastic bag gets wrapped round your intake will be more preventative than waiting for a temp sensor to trip.
__________________
9D280 is offline   Reply With Quote
Old 04 February 2008, 15:31   #7
RIBnet supporter
 
Erin's Avatar
 
Country: UK - Channel Islands
Town: A large rock
Boat name: La Frette
Make: Osprey Vipermax
Length: 6m +
Engine: 200 Suzzy
Join Date: May 2004
Posts: 2,830
Hmmm, very interesting. There seems to be a trait here. I had three overheat alarms on my DF90, which we all know is a very similar block and design to the 140. On the first two occasions there was a momentary drop in water pressure, the alarm went off and I stopped the engine. I instantly restarted and it was fine for the next few trips. On the third time a restart didn't help and there was definitely very little water coming out the telltale if I revved above 1200rpm. The impellor was replaced after the first overheat and checked after the 2nd and 3rd times and no sign of any prob. Strangest thing was after the third overheat as the next day all was fine again.

I see from your printout that the engine was at 0 rpm when the readings were taken. Is this relevant. I know the Suzzys don't have an electronic water pressure sensor and rely purely on heat rise over time in the sensors for a 'gradient' temp alarm, or an out-of-range temp for the other overheat scenario.

PM me if you want more info on my experiences
__________________
Erin is offline   Reply With Quote
Old 04 February 2008, 17:18   #8
Member
 
Country: Ireland
Town: cork
Boat name: none
Make: HUMBER DESTROYER 5.8
Length: 5m +
Engine: 140HP sUZUKI
Join Date: Dec 2007
Posts: 262
pm

sent you pm
__________________
ciaranp is offline   Reply With Quote
Old 05 February 2008, 05:26   #9
Member
 
Country: Ireland
Town: cork
Boat name: none
Make: HUMBER DESTROYER 5.8
Length: 5m +
Engine: 140HP sUZUKI
Join Date: Dec 2007
Posts: 262
anymore of you out there with suggestions.is this engine ok?
__________________
ciaranp is offline   Reply With Quote
Old 05 February 2008, 05:37   #10
Member
 
Country: UK - England
Town: Gloucestershire
Boat name: Osprey
Make: Osprey Vipermax
Length: 5m +
Engine: E-tec 300 G2
MMSI: TBC
Join Date: Dec 2006
Posts: 4,013
Ciaran,

How did you get that engine diagnostic printout?
__________________

__________________
Chris is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 16:12.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.