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DISCO3.CO.UK > Maintenance & Mods (D3)

Timing Belt Tensioner - Sanity Check

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Jamiehol

Member Since: 13 Nov 2015
Location: Ipswich
Posts: 345

Timing Belt Tensioner - Sanity Check

After a sanity check I’m in the middle of replacing the front timing belt and oil pump on my D3 using DM and Flacks excellent guides.

I just got the new belt on and tensioned up, but I just wanted to check have I got the tensioner set correctly.

I’ve embedded a picture of the tensioner as it is currently set just wanted to check it looks ok before I button everything else up

6th May 2021 8:41 am

Disco_Mikey

Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20726

2005 Discovery 3 TDV6 HSE Auto Cairns Blue

Little bit on the tight side

Usually loosens off enough after rotating the engine a few times though

My D3 Build Thread

TDV8 Retrofit Build Thread

6th May 2021 8:51 am

Jamiehol

Member Since: 13 Nov 2015
Location: Ipswich
Posts: 345

DM thanks for that, haven’t removed the locking pins and hand cranked the engine yet but that is my next step.

I’ll grab another photo to see where it is sitting once I’ve hand cranked it a few times 👍

6th May 2021 8:53 am

Jamiehol

Member Since: 13 Nov 2015
Location: Ipswich
Posts: 345

Right removed the locking pins and hand turned over the engine 4 revolutions and it now looks like this.

Timing pins in the cams and crank all go back in ok so timing seems to be ok but the key question is the tensioner position ok now, it has moved a bit.

6th May 2021 1:26 pm

Globetrotter448

Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1780

2007 Discovery 3 4.0 V6 Petrol SE Auto Java Black

Not really sure on this one, but should you not have a certain amount of flex in the belt.

10th May 2021 10:18 am

Jamiehol

Member Since: 13 Nov 2015
Location: Ipswich
Posts: 345

Hadn’t updated this thread, had a couple of attempts to sort the tension and was getting more and more frustrated by it so just left it.

Have got the tension ok now although just need to double check the timing is all ok before I do any reassemble a combination of crap weather and feeling rough after my first COVID jab meant I haven’t done anything with it for a few days.

10th May 2021 10:10 pm

loanrangie

Member Since: 18 Jun 2017
Location: Melbourne
Posts: 598

2008 Discovery 3 TDV6 SE Auto Stornoway Grey

Globetrotter448 wrote:
Not really sure on this one, but should you not have a certain amount of flex in the belt.

No, the tensioner is pretty tight and being spring loaded will move a little under operating conditions.

11th May 2021 4:40 am

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