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Nissan 3.0 TD Belt Tensioner Pulley

Submitted: Friday, Nov 02, 2007 at 19:17

Member - 120scruiser (NSW)

Hi all
I thought I would just enlighten everybody for whom may happen to own one of these engines.
The 3.0 diesel Patrol engine can end up with a noisy belt tensioner bearing. Now when you go to the lovely chaps at Nissan, they want to charge you around $360.00 to replace the lot.
Well I have been doing some experimenting.
You can get away with an after market Commodore pulley.
Part number EP001. Nuline part number.
You will need a 17-18mm ID flat washer to space the bearing out about 2mm so it doesn't rub on the bracket.
All up cost for about $35.00. A significant saving.
Hope this helps anybody in the future to save dome dollars.
Scott
Nissan 3.0 Patrol ZD30 Piston Broke.
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Nissan Patrol GU 3.0 ZD30 Piston Broke.
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AnswerID: 269780   Submitted: Friday, Nov 02, 2007 at 20:16

Member - Axle replied:



Hi Scott, Bloody scanderless some of these prices!

Landrover the same, with their belt tensioner although a bit better at a $180. You can buy a bearing for theirs for fifteen bucks! and away you go again, But through experience i have found the time the bearing is shot the rest of the tensioner is a tad sad anyway.

Cheers Axle.
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AnswerID: 269783   Submitted: Friday, Nov 02, 2007 at 20:22

Bonz (Vic) replied:

mmm just replaced mine, and I havent found out the cost yet...

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AnswerID: 269791   Submitted: Friday, Nov 02, 2007 at 20:37

Member - Roachie (SA) replied:

Scott,
Does that replace the whole tensioner set-up? I helped a mate jury-rig his tensioner set-up a few years ago (camped down on the Murray River near Euston)......the problem was the little spring-loaded gizmo that looked like a mini shock-absorber; it was made of alloy and had seized-up and worn down etc.....more than just a pulley was required to fix that one.
Just curious.
Cheers
Roachie
Darling River run with Dave B
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FollowupID: 532761   Submitted: Saturday, Nov 03, 2007 at 10:34

Member - 120scruiser (NSW) posted:

Hi Roachie.
No it just replaces the actual pulley.
The little shock/tensioner can be bought from Nissan separately for about $208 I think. If the bearing goes you have to replace the whole lot. You will need a torx bit to undo the bolt that holds the bearing to the bracket.
I have only had to replace the bracket on one customers car due to the shock siezing up, I couldn' release the tension on the belt and it broke the part that you put the socket on to release it. In hindsight I should have just cut the belt off and then undo the shock part but hindsight is a wonderful thing. All up cost would have been about the same anyway.
One thing I have noticed is that when you buy an after market belt you can't get the damn thing on because it is about 5mm shorter than the original. With the commodore pulley on, it is 1mm diameter smaller so it may go close to getting the after market belt on.
We will see how it goes.
Nissan 3.0 Patrol ZD30 Piston Broke.
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Nissan Patrol GU 3.0 ZD30 Piston Broke.
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AnswerID: 269819   Submitted: Saturday, Nov 03, 2007 at 03:53

Member - Bucky (VIC) replied:

Cheers Scott
Great tip about the pully setup !
Pity Nissan didn't take a lesson from Holden there, my old VP commodore made it in a gr8 place, and it was a 5 minute job to change the fan belt
Must have been too hard for Mr Nissan to put the tensioner up in a servicealbe area, without having to drop the the stone guard off.
Took mine off last year, mongrel of a job, thought bearing was gone,
was actually the fan belt, despite numerous attempts to lubricate same
Don't laugh too much and call me a #$#@!, but I could not stop the squeeling from that area. removed tensioner, bit rattly I thought, sprayed Inox into bearing and put it back on. 4 Hr job, only to keep squeeling..
Der me,,,
Swapped belt in the end.

Der me

Cheers Mate
Bucky



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FollowupID: 532712   Submitted: Saturday, Nov 03, 2007 at 03:55

Member - Bucky (VIC) posted:

Roachie

Before you hook into me too much, Bite it !

Cheers Mate
Bucky

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Always consult the Minister for War & Finance
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FollowupID: 532762   Submitted: Saturday, Nov 03, 2007 at 10:40

Member - 120scruiser (NSW) posted:

Hi bucky
Yeah the belts can be a pain to change. Luckily I have a 4 tonne hoist I can do them on in my workshop which makes it easier but still awkward. The best way is with two people and a long 1/2 inch drive breaker bar. The breaker bar will fit between the panhard rod so you can pull on it from below the maze of steel. I thread the new belt up and put it over the water pump, tensioner, harmonic balancer and then have somebody on the top to flip it over the alternator when I release the tension. That seems to be the easiest way but also the hardest if you are on your own.
They do have a tendancy to squeak. Alot of that is due to the shock/tensioner wearing in the bushes and it allows it to move around. These 3.0 engines have alot of vibrations and Nissan has attempted to quiet them down by using all the foam and packing around the engine.
I have rebuilt another one this week with another hole in a piston. I am starting to get a collection of these things. Its a shame but what can you do. Maybe mechanics designed these to keep themselves in business in the future.
Scott
Nissan 3.0 Patrol ZD30 Piston Broke.
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Nissan Patrol GU 3.0 ZD30 Piston Broke.
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