Valve job

[Scotty951]

Hi I have a 2012 lr4 5.0 just checking to see when I might need a valve job I'm doing timing chain right now. Anyone have a time line before valve job is needed. Thanks for any input

 

[djkaosone]

I don't think there's a scheduled "maintenance" for a valve job. I'd imagine you would only need it, if you don't have compression. Before and after you get the timing chain done, check compression for each cylinder 3 times each. That'll give you a decent average. I was getting between 190-210 psi, and anything above 150 is fantastic.

If you find low compression before hand, you can address it while you're in there doing the timing chains. I'm also assuming you're diy the job.

 

[Stuart Barnes]

Or are you talking about the deposits that build up on the intake valves? I’m assuming not.

 

[djkaosone]

Oh... that... technically there is a bg44k service that you can do. I thought you were talking about something else, but I'll still stand by compression testing it before and after.

When I did my timing chains, I walnut blasted it. Just make sure you get 99.9% of all walnut dust out of each valve.

Diy timing chain

Alright... it has begun. The infamous timing chain noise was just getting louder and I've sourced all the parts and tools to do it myself. This will be an ongoing tutorial/experience from my perspective. If you're doing this it's at you're own risk, and I'll document my experience to help you...

www.landroverworld.org

 

[timc930]

Hi I have a 2012 lr4 5.0 just checking to see when I might need a valve job I'm doing timing chain right now. Anyone have a time line before valve job is needed. Thanks for any input

I would guess somewhere around 300-400K, if engine is never overheated, and frequent 5-7.5K oil changes. Or, you could take a compression and leakdown every 150K to track it...