Help - is it VVT or chain tensioners

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Sep 29, 2014 | 04:33 PM

#21

XJ8JR

Veteran Member

Joined: Jun 2010

Posts: 2,328

Likes: 544

From: Spring, TX

Quote:

Originally Posted by Fraser Mitchell

As the rattle is only 1-2 seconds on start-up, I am inclined to point to the VVT locking pin as the cause. Oil pressure forces it off its seat on start-up so the VVT can start operation. If the VVT is not locked on start up, the vanes in the unit could clatter against the housing until oil enters the VVT under pressure, and this will take about 1-2 seconds.

I think I'm finally in a position to try and tackle this job myself. My question is where exactly is this VVT stopper pin located? Is it within the VVT unit itself or within the solenoid?

Apr 10, 2016 | 02:03 PM

#22

Daimlerdave

Junior Member

Joined: Apr 2016

Posts: 15

Likes: 1

From: Devon

Early XJ8 VVT Noise

Hi Guys

I'm new here but not so new to Jags!
I recently got a Daimler X308 1998 with the early type VVT, i have it stripped down and want to know what i should be looking for regarding the VVT noise?

It's only done 52k miles and needed a good service which i have now completed with a engine flush, the noise is still there and being a techy myself I am 100% sure it is the VVT, i just have no idea what i need to do to fix this!

Is it just a new seal someplace or something more serious? Any help very much appriciated.

Kind regards

David

Apr 10, 2016 | 04:22 PM

#23

Fraser Mitchell

Veteran Member

Joined: Dec 2009

Posts: 9,548

Likes: 2,548

From: Crewe, England

Sorry, David, but you're in the wrong forum. Post this is the X308 forum the one for your car. You should get good responses.

All to note the age of this thread, (2012)