texasfishingforum.com logo
Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
TraeMartin, Power-Pole CS, T-Rigger, JoeGoes, EcKo
119150 Registered Users
Top Posters(All Time)
hopalong 120,585
TexDawg 119,524
Bigbob_FTW 94,903
John175☮ 85,892
Pilothawk 83,264
Bob Davis 81,523
Mark Perry 72,297
Derek 🐝 68,312
JDavis7873 67,416
Forum Statistics
Forums59
Topics1,037,854
Posts13,935,655
Members144,150
Most Online39,925
Dec 30th, 2023
Print Thread
n overheating over 4500rpms #2706864 10/06/08 07:01 PM
Joined: Sep 2005
Posts: 118
L
lowbass Offline OP
Outdoorsman
OP Offline
Outdoorsman
L
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.

Re: n overheating over 4500rpms [Re: lowbass] #2706904 10/06/08 07:16 PM
Joined: Mar 2008
Posts: 61,005
L
LoneStarSon Online Content
Private Dancer
Online Content
Private Dancer
L
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...

Re: n overheating over 4500rpms [Re: lowbass] #2707382 10/06/08 09:37 PM
Joined: Dec 2003
Posts: 409
T
TRAILBOSS Offline
Angler
Offline
Angler
T
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!
Re: n overheating over 4500rpms [Re: TRAILBOSS] #2708059 10/07/08 01:33 AM
Joined: Oct 2008
Posts: 6
B
Ballisticmarineservice Offline
Green Horn
Offline
Green Horn
B
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

Re: n overheating over 4500rpms [Re: Ballisticmarineservice] #2708544 10/07/08 10:21 AM
Joined: Feb 2006
Posts: 48,345
OldFrog Offline
TFF Guru
Offline
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.
Re: n overheating over 4500rpms [Re: OldFrog] #2718198 10/09/08 07:37 PM
Joined: Sep 2005
Posts: 118
L
lowbass Offline OP
Outdoorsman
OP Offline
Outdoorsman
L
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.

Re: n overheating over 4500rpms [Re: lowbass] #2719429 10/10/08 06:40 AM
Joined: Feb 2006
Posts: 48,345
OldFrog Offline
TFF Guru
Offline
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.
Re: n overheating over 4500rpms [Re: OldFrog] #2745511 10/17/08 09:45 PM
Joined: Apr 2006
Posts: 225
R
ragin18cajun Offline
Outdoorsman
Offline
Outdoorsman
R
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
Re: n overheating over 4500rpms [Re: ragin18cajun] #2745583 10/17/08 10:09 PM
Joined: Aug 2007
Posts: 4,591
S
stick steering Offline
TFF Team Angler
Offline
TFF Team Angler
S
Joined: Aug 2007
Posts: 4,591
be careful not to damage the rubber grommet the shift rod passes through undeer the carbs

Re: n overheating over 4500rpms [Re: stick steering] #2746091 10/18/08 08:42 AM
Joined: May 2003
Posts: 11,586
gary purdy Offline
TFF Guru
Offline
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
Previous Thread
Index
Next Thread

© 1998-2022 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide
Powered by UBB.threads™ PHP Forum Software 7.7.3