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n overheating over 4500rpms
#2706864
10/06/08 07:01 PM
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Joined: Sep 2005
Posts: 118
lowbass
OP
Outdoorsman
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OP
Outdoorsman
Joined: Sep 2005
Posts: 118 |
My 1999 Johnson 115 seems to run a steady stream out the "peehole" at idle, but set off the "hot" alarm, and shut itself down when operating at WOT. Should a new impeller fix the problem, and if so, any tips on doing this? My last impeller job was on a 15HP Seaking, back in the early '80's.
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Re: n overheating over 4500rpms
[Re: lowbass]
#2706904
10/06/08 07:16 PM
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Joined: Mar 2008
Posts: 61,005
LoneStarSon
Private Dancer
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Private Dancer
Joined: Mar 2008
Posts: 61,005 |
I don't know that engine well enough to tell you exactly how to do it...However, yes, that should fix the problem...If it doesn't it might be a thermostat..If the impeller hasn't been changed in a while (a year or longer), it's time to change it...
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Re: n overheating over 4500rpms
[Re: lowbass]
#2707382
10/06/08 09:37 PM
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Joined: Dec 2003
Posts: 409
TRAILBOSS
Angler
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Angler
Joined: Dec 2003
Posts: 409 |
I have a 175 that had been overheating lately I pulled the lower unit inspected impeller and housing(looked Good)Had been peeing fine with 6pound water pressure. Put back together no luck. changed thermostats no luck. tore back apart bought new waterpump assemby. Now put back together 10psi water pressue no overheat. Finally Fixed
Boogs Guide Service Kennith Holmes (903)815-3855 Texoma stripers and Trophy blue cats Making memories with every trip!
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Re: n overheating over 4500rpms
[Re: TRAILBOSS]
#2708059
10/07/08 01:33 AM
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Joined: Oct 2008
Posts: 6
Ballisticmarineservice
Green Horn
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Green Horn
Joined: Oct 2008
Posts: 6 |
115 water pump impeller change is easy if you have done it i time or two call me and i can walk you through it 903-603-8906 shane Ballistic marine service
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Re: n overheating over 4500rpms
[Re: Ballisticmarineservice]
#2708544
10/07/08 10:21 AM
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Joined: Feb 2006
Posts: 48,345
OldFrog
TFF Guru
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TFF Guru
Joined: Feb 2006
Posts: 48,345 |
Welcome to TFF, Lowbass and Ballistic.
Swap out the whole waterpump. Get the kit with the stainless plate and housing. Like they said, it's not a tough job. Just buy a manual and take your time.
Now, Donald...please pick John Bolton for your running mate.
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Re: n overheating over 4500rpms
[Re: OldFrog]
#2718198
10/09/08 07:37 PM
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Joined: Sep 2005
Posts: 118
lowbass
OP
Outdoorsman
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OP
Outdoorsman
Joined: Sep 2005
Posts: 118 |
Thanks for all the help guys! I ordered a BRP(omc) impeller kit with housing, and a Johnson manual, both for just over $100 delivered.
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Re: n overheating over 4500rpms
[Re: lowbass]
#2719429
10/10/08 06:40 AM
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Joined: Feb 2006
Posts: 48,345
OldFrog
TFF Guru
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TFF Guru
Joined: Feb 2006
Posts: 48,345 |
If it's like my older model, you need to PAY attention to what the manual says about the shift rod. Mine is a hard to get to bolt underneath the carbs, yours may be different.
Now, Donald...please pick John Bolton for your running mate.
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Re: n overheating over 4500rpms
[Re: OldFrog]
#2745511
10/17/08 09:45 PM
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Joined: Apr 2006
Posts: 225
ragin18cajun
Outdoorsman
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Outdoorsman
Joined: Apr 2006
Posts: 225 |
long 1/4 in. ext. 3/8 wobble socket its easy,make sure to grease the driveshaft b4 u put it back
Lone Star Mossy Backs Longview,Tx J R
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Re: n overheating over 4500rpms
[Re: ragin18cajun]
#2745583
10/17/08 10:09 PM
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Joined: Aug 2007
Posts: 4,591
stick steering
TFF Team Angler
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TFF Team Angler
Joined: Aug 2007
Posts: 4,591 |
be careful not to damage the rubber grommet the shift rod passes through undeer the carbs
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Re: n overheating over 4500rpms
[Re: stick steering]
#2746091
10/18/08 08:42 AM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
The 99 is one of the more easy to do because you do`nt have a bolt to take out and replace on the shift shaft. Easyer if you take off the bottom cowling. You pull a clip on the shift linkage rod and push the shift rod in to get pin out of the hole in the shift shaft. With bottom cowling off you can see much better to line up pin and shift shaft when reinstalling. Word of warning(do not turn the shift shaft) Good Luck
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
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