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Discussion Starter #1
Hi all,

I have an Heavy Oil leak, I have looked and searched but not found same thing as me.

It seems to have heavy oil leak, leaking from the front sides of the engine radiator end.

I am thinking timing covers and i think the PVC system rubber pipes are failing but don't make sense to why the oil is at the front of the engine.

I have some pictures attached just wanted some advice oh what i should look at first ? or anyone with same kind of issue

hard to get on photos but its alot more then images suggest.. Oil is clean, Coolant is clean.







thanks for any help or suggestions
 

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2002-2005 Range Rover MkIII / L322
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You are correct, your valve covers are leaking. Also in that area, but lower down is the chain tensioner, but a leak there is not common.

For planning, if your valve covers have started leaking, it is just a matter of time before the timing covers do to. Since the valve covers have to come off to fix the timing covers, I'd do both at the same time. I didn't, and wound up doing the covers a second time within a year...
 

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Discussion Starter #3
Yer think same boat as you then, timing covers were replaced but I don't think done correctly ! So looks like I will just do all three.. Valve covers, timing covers and full pvc system. And go from there ! Amazing how fast it's went from not a lot to more.

I will update with progress with this will be a few weeks as my local LR specialists are fully booked up.. So my poor drive going to get messy !
 

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Yes, the VANOS seal,the top part of the front engine cover, they also do leak. The first photo, also looks like the valve cover gasket.
 

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2002-2005 Range Rover MkIII / L322
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If your timing covers were recently replaced...they missed aligning the upper cover with the top of the head. The valve covers have to rest on both the timing cover and head...so if the mechanic did not take the time to set the timing cover level with the head, there will be a ridge that cannot be sealed correctly. It takes a special tool...or some close attention with a mallet...to get it right.
 

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Discussion Starter #8
If your timing covers were recently replaced...they missed aligning the upper cover with the top of the head. The valve covers have to rest on both the timing cover and head...so if the mechanic did not take the time to set the timing cover level with the head, there will be a ridge that cannot be sealed correctly. It takes a special tool...or some close attention with a mallet...to get it right.
Yes does seem like this, Seems i will get them to replace Timing Cover Gasket, Valve Cover Gasket, VANOS seals, PVC System full replace with all pipes.

Hopefully that will bring an end to the oil leak !

thanks
 

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2006-2009 Range Rover MkIII / L322
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While it is apart I'd replace the VANOS NRV's (non return valves) as well. They are very cheap and definitely worth replacing.
 

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Discussion Starter #12
thanks for everyones help, I will make sure i get the garage to do the above.

I am also going to get the diff and transfer box oils changed while its in there.

Hopefully warranty will jet again pay out for this !

Anyone who owns a range rover without a very good warranty are brave people ! its saved me a good few thousands of pounds over last couple of years.

(EDIT)

Now have a little coolant leak ! think its the pipe behind engine ! as least can all be done same time...
 

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Discussion Starter #13
seems i have found the coolant leak issue.. Ordered the new pipe £10... so hopefully can sort that myself this week.

Land Rover part number JCH000081



t
hink this may have damaged when i had the gearbox reconditioned
 

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Discussion Starter #14
replaced the coolant hose,

Does anyone know the part numbers for all the PVC pipes ?

Looking for all the 3 pipes? i believe there are 3 ? part numbers and the PVC valve as well.. i have searched found difference in numbers
 
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