|
Forums59
Topics1,057,562
Posts14,286,546
Members144,610
| |
Most Online39,925
Dec 30th, 2023
|
|
 Mercury High Temp Alarm Problem
#5175656
08/07/10 02:26 PM
|
Joined: Jul 2010
Posts: 117
Lee59
OP
Outdoorsman
|
|
OP
Outdoorsman
Joined: Jul 2010
Posts: 117 |
I have a 1984 200HP Merc and get a high temp alarm around 3000 rpms under a load. I have changed out the thermostats, water pump, and poppit valve, it ran fine for a couple of hours then did the same thing also when the alarm goes off I notice the water pressure drops to zero. Does anyone have any suggestions on what to try next? Thanks
|
|
|
Re: Mercury High Temp Alarm Problem
[Re: Lee59]
#5175766
08/07/10 03:22 PM
|
Joined: Jan 2005
Posts: 1,910
heybaylor
Extreme Angler
|
|
Extreme Angler
Joined: Jan 2005
Posts: 1,910 |
waterpump..
new doesnt mean it is good ..
replace the whole thing , not just the impellar
heybaylor
|
|
|
Re: Mercury High Temp Alarm Problem
[Re: heybaylor]
#5175784
08/07/10 03:27 PM
|
Joined: Dec 2007
Posts: 2,319
Matt M
Extreme Angler
|
|
Extreme Angler
Joined: Dec 2007
Posts: 2,319 |
Pull the waterpump back down and inspect the base and the housing and be sure the gaskets are on corectly
Matts Marine Service
903-450-3539
|
|
|
Re: Mercury High Temp Alarm Problem
[Re: Matt M]
#5175823
08/07/10 03:43 PM
|
Joined: Jul 2010
Posts: 117
Lee59
OP
Outdoorsman
|
|
OP
Outdoorsman
Joined: Jul 2010
Posts: 117 |
Thanks for the responses, I did replace the entire water pump and housing and the impellar twice and confirmed the gaskets are installed correctly.
|
|
|
Re: Mercury High Temp Alarm Problem
[Re: Lee59]
#5175918
08/07/10 04:20 PM
|
Joined: Oct 2005
Posts: 20,755
kingdad101
TFF Guru
|
|
TFF Guru
Joined: Oct 2005
Posts: 20,755 |
doesn't the W/P have to be installed with the "arms" going a certain direction..
|
|
|
Re: Mercury High Temp Alarm Problem
[Re: kingdad101]
#5177893
08/08/10 11:50 AM
|
Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
|
|
TFF Guru
Joined: May 2003
Posts: 11,586 |
I am guessing you have trash in the exhaust adaptor. Pull everything down, removing thermostats, poppet assembly,lower unit, port fitting on exhaust adaptor and the pipe plug at top of block, then start flushing using water and then air Check the water pickup on the lower unit for trash.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
|
|
|
Re: Mercury High Temp Alarm Problem
[Re: kingdad101]
#5179850
08/09/10 11:42 PM
|
Joined: Nov 2008
Posts: 1,560
BassHunter 69
Extreme Angler
|
|
Extreme Angler
Joined: Nov 2008
Posts: 1,560 |
doesn't the W/P have to be installed with the "arms" going a certain direction.. YES!!!!!!!! They must be the same direction that they came out They should lay back as it turns in the housing.
Field Staff for Wicked Weights (Tungsten Done Right!)
|
|
|
Re: Mercury High Temp Alarm Problem
[Re: BassHunter 69]
#5181360
08/10/10 12:55 PM
|
Joined: Dec 2007
Posts: 2,319
Matt M
Extreme Angler
|
|
Extreme Angler
Joined: Dec 2007
Posts: 2,319 |
were all the blades intact when you changed your old impeller out? If not did you find all of the pieces
Matts Marine Service
903-450-3539
|
|
|
Re: Mercury High Temp Alarm Problem
[Re: Matt M]
#5185470
08/11/10 11:13 AM
|
Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
|
|
TFF Guru
Joined: May 2003
Posts: 11,586 |
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
|
|
Moderated by banker-always fishing, chickenman, Derek 🐝, Duck_Hunter, Fish Killer, J-2, Jacob, Jons3825, JustWingem, Nocona Brian, Toon-Troller, Uncle Zeek, Weekender1
|
