4.5 Water pump bearing change?
-
- Senior Member
- Posts: 189
- Joined: 19 Nov 2013 11:10
- Full Name: Florian M.
- Nickname: Flo
- Home Town: Hoedspruit
- Current 4x4: '99 GRX 4500
- Home Language: German
- Has thanked: 41 times
- Been thanked: 33 times
4.5 Water pump bearing change?
Good morning!
I have just been to Kruger and had a few occasions where I went through deep water paddles.
The day after I‘d have a bad sound out of the engine bay after starting, most probably from the water pump bearing.
I put some Q20 onto it and after some KM the sound disappeared.
The water temperature was normal, so the impeller always worked.
Anyhow I want to change that bearing now.
My question is: is that possible at all, or will I only get the pump as a whole?
I am also not sure if maybe replacing the water pump is a good idea when having it out already.
What are your ideas?
Best regards,
Florian
I have just been to Kruger and had a few occasions where I went through deep water paddles.
The day after I‘d have a bad sound out of the engine bay after starting, most probably from the water pump bearing.
I put some Q20 onto it and after some KM the sound disappeared.
The water temperature was normal, so the impeller always worked.
Anyhow I want to change that bearing now.
My question is: is that possible at all, or will I only get the pump as a whole?
I am also not sure if maybe replacing the water pump is a good idea when having it out already.
What are your ideas?
Best regards,
Florian
- iandvl
- Patrolman 1000+
- Posts: 1765
- Joined: 12 Jan 2015 13:26
- Full Name: Ian de Villiers
- Nickname: Ian
- Home Town: Garsfontein
- Current 4x4: Nissan Patrol 4.5 GRX
- Home Language: English
- Has thanked: 446 times
- Been thanked: 670 times
Re: 4.5 Water pump bearing change?
If you're going to the effort of taking the pump out, I'd suggest replacing the pump entirely. Might be an idea to do the viscous coupling too if that has not been done before.
Ian de Villiers
Patrol 4.5 GRX
Jurgens XT65 2x0 with Super Select Zero
ORRA: H80
Patrol 4.5 GRX
Jurgens XT65 2x0 with Super Select Zero
ORRA: H80
- hugejp
- Patrolman 1000+
- Posts: 2052
- Joined: 21 Oct 2014 21:01
- Full Name: JP Viviers
- Nickname: Oupoot
- Home Town: JHB
- Current 4x4: THE PATROL COLLECTION
2004 4.8 GRX TURBO "Tinkerbell"
2003 TD42T GRX "The Coal Roller" - Home Language: Half & Half
- Has thanked: 211 times
- Been thanked: 217 times
Re: 4.5 Water pump bearing change?
X2
----------------------------------------------------------------------
You CAN with a NISSAN!
Jy KAN met 'n DATSUN!
You CAN with a NISSAN!
Jy KAN met 'n DATSUN!
- Dungbeetle
- Senior Member
- Posts: 279
- Joined: 28 Jun 2009 08:46
- Full Name: Rudolf
- Nickname: Dungbeetle
- Home Town: Ellisras
- Current 4x4: 2000 Patrol 4.2GL Wagon old and wise at 880 000 km
2014 Patrol 3.0GL CRD reaching puberty at 150 000 km - Home Language: Afr
- Has thanked: 60 times
- Been thanked: 67 times
Re: 4.5 Water pump bearing change?
Just some experience from my side on my 4.2D:Florian320 wrote: ↑12 Dec 2019 07:14 Good morning!
I have just been to Kruger and had a few occasions where I went through deep water paddles.
The day after I‘d have a bad sound out of the engine bay after starting, most probably from the water pump bearing.
I put some Q20 onto it and after some KM the sound disappeared.
The water temperature was normal, so the impeller always worked.
Anyhow I want to change that bearing now.
My question is: is that possible at all, or will I only get the pump as a whole?
I am also not sure if maybe replacing the water pump is a good idea when having it out already.
What are your ideas?
Best regards,
Florian
I had a similar issue and also sprayd some WD40 around there, and at the back of the water pump belt pulley. Long story short the problem came back after a short while. BUT as I discovered later- it was not the water pump bearing. It was the tensioner pulley bearing screaming.
2000 Patrol GL 4.2D - Still strong just short of 900 THOUSAND KILOMEEEEEEEEEEEEEETERRRRRRRRRRRRRRRRSSSSSSSSSSSSS - Daily Tractor
2014 CRD at 170k km - Sunday Tractor
2012 NP300 DC - platkar
2014 CRD at 170k km - Sunday Tractor
2012 NP300 DC - platkar
-
- Patrolman
- Posts: 640
- Joined: 07 Apr 2009 07:13
- Full Name: Malcolm van Coller
- Nickname: mvcoller
- Home Town: In most reverse order - Jhb, V-Town, Vryburg, CT
- Current 4x4: 2008 3.0 Di Patrol GL
and
1999 4.5 Patrol SGL - Home Language: Afr & Eng
- Location: Befordview
- Has thanked: 40 times
- Been thanked: 179 times
- Contact:
Re: 4.5 Water pump bearing change?
Replace the complete pump rather.......
Waterpumps are finicky when replacing bearings. You have to heat the bearing to remove it, which invariably damages the seal. The same happens if you have a hydraulic press available and try and press the bearing off the shaft.
Bearings can be found, generally, but seals are not so easy to find, if at all....
It is just not worth the trouble....
Waterpumps are finicky when replacing bearings. You have to heat the bearing to remove it, which invariably damages the seal. The same happens if you have a hydraulic press available and try and press the bearing off the shaft.
Bearings can be found, generally, but seals are not so easy to find, if at all....
It is just not worth the trouble....
-
- Senior Member
- Posts: 201
- Joined: 12 Nov 2018 21:39
- Full Name: Ruan
- Nickname: Ruan
- Home Town: Swakopmund
- Current 4x4: 2017 Ford Ranger 3.2 D/C 4x4 Auto
2000 Nissan Patrol 4.5 GRX M/T - Home Language: Afrikaans
- Has thanked: 88 times
- Been thanked: 58 times
-
- Senior Member
- Posts: 189
- Joined: 19 Nov 2013 11:10
- Full Name: Florian M.
- Nickname: Flo
- Home Town: Hoedspruit
- Current 4x4: '99 GRX 4500
- Home Language: German
- Has thanked: 41 times
- Been thanked: 33 times
Re: 4.5 Water pump bearing change?
Thanks for the replies!
It is just around 275000km.
In parallel I also thought you don‘t f..k around with the water pump.
Funnily my Nissan Dealer offered me a replacement pump not being genuine for around 600 ZAR.
But the pump being quite vital I‘ll go for a genuine one.
In addition I‘ll also replace the thermostat when work has to be done on the cooling system anyhow.
How can I rule out that for sure it‘s the water pump and not the viscous coupling of the cooling fan?
Shouldn‘t that one be silent if the fan stands still, or will the bearing always move?
It is just around 275000km.
In parallel I also thought you don‘t f..k around with the water pump.
Funnily my Nissan Dealer offered me a replacement pump not being genuine for around 600 ZAR.
But the pump being quite vital I‘ll go for a genuine one.
In addition I‘ll also replace the thermostat when work has to be done on the cooling system anyhow.
How can I rule out that for sure it‘s the water pump and not the viscous coupling of the cooling fan?
Shouldn‘t that one be silent if the fan stands still, or will the bearing always move?
- iandvl
- Patrolman 1000+
- Posts: 1765
- Joined: 12 Jan 2015 13:26
- Full Name: Ian de Villiers
- Nickname: Ian
- Home Town: Garsfontein
- Current 4x4: Nissan Patrol 4.5 GRX
- Home Language: English
- Has thanked: 446 times
- Been thanked: 670 times
Re: 4.5 Water pump bearing change?
The coupling will need replacing at some point. And at that mileage, I'd do it anyway. When replacing the thermostat, make sure it works. ie: Boil the kettle, pour boiling water into a coffee cup and chuck the new thermostat in there. It should open up.
Graham also normally removes the funny valve thingy on the thermostat and drills the hole a little bigger. Get hold of him for details about this.
Graham also normally removes the funny valve thingy on the thermostat and drills the hole a little bigger. Get hold of him for details about this.
Ian de Villiers
Patrol 4.5 GRX
Jurgens XT65 2x0 with Super Select Zero
ORRA: H80
Patrol 4.5 GRX
Jurgens XT65 2x0 with Super Select Zero
ORRA: H80
- Peter Connan
- Moderator
- Posts: 6016
- Joined: 10 Sep 2010 07:21
- Full Name: Peter Connan
- Nickname: Piet
- Home Town: Kempton Park
- Current 4x4: 1996 Patrol 4.5SGL
- Home Language: Afrikaans
- Location: Kempton Park
- Has thanked: 1067 times
- Been thanked: 987 times
Re: 4.5 Water pump bearing change?
I think the chances are 95% that it is the bearing in the tensioner pulley. It is a common bearing that you can get from any Bearing Man or similar outlet, but the guys tend to fit the wrong type of seal (normal single-race bearings usually come in one of three different variations, you need the one with the metallic end caps).
They commonly give issues after water crossings, whereas the water pump doesn't because it is well protected by the pulley.
They commonly give issues after water crossings, whereas the water pump doesn't because it is well protected by the pulley.
Mag ons ons kenniskry met lekkerkry aanhoukry.
-
- Senior Member
- Posts: 189
- Joined: 19 Nov 2013 11:10
- Full Name: Florian M.
- Nickname: Flo
- Home Town: Hoedspruit
- Current 4x4: '99 GRX 4500
- Home Language: German
- Has thanked: 41 times
- Been thanked: 33 times
Re: 4.5 Water pump bearing change?
Hi Peter, thanks a lot for for the advice, also thanks for the other replies!
The sound came from the area of the waterpump quite precisely.
But obviously the bearing of the cooler fan is just in front of it so I can‘t rule that one out.
I guess I can only see who the culprit is by taking them of the car, isn‘t it?
Now as I had my ears on the belts I got the impression that the free wheeling mechanism of the a/c compressor also could have a very slight screeching sound.
Can that one be changed alone or would that mean a new compressor?
I‘d like to get that area done in one move when I have it worked on...
The sound came from the area of the waterpump quite precisely.
But obviously the bearing of the cooler fan is just in front of it so I can‘t rule that one out.
I guess I can only see who the culprit is by taking them of the car, isn‘t it?
Now as I had my ears on the belts I got the impression that the free wheeling mechanism of the a/c compressor also could have a very slight screeching sound.
Can that one be changed alone or would that mean a new compressor?
I‘d like to get that area done in one move when I have it worked on...
Who is online
Users browsing this forum: No registered users and 18 guests