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Home > Maintenance & Mods (L322) > Valve seats leaking oil?

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TheAllSeeingPie

Member Since: 18 Apr 2012
Location: Leeds
Posts: 848

2007 Range Rover Supercharged Supercharged Java Black

Valve seats leaking oil?

Hi all,

I keep getting a puff of blue smoke when I start up my SC, which I think is oil leaking back into the combustion chambers when the engine is shut off? Once the engine is started it doesn't blow anymore smoke and runs fine. All I want to know is the following really?

1. Apart from the current wear, is this going to damage my engine further?
2. How much does this cost to repair? Is it just seals and lots of labour taking the head off or is it a new head?
07 Supercharged - Still breaking her in!

Boot soundproofing part 1 - http://www.fullfatrr.com/forum/topic15612.html
Custom exhaust - http://www.fullfatrr.com/forum/topic15296.html
18" wheels for Brembo equipped cars - http://www.fullfatrr.com/forum/topic15052.html

30th Jun 2014 9:49pm

KurtVerbose

Member Since: 08 Aug 2010
Location: Les Arses
Posts: 5848

2007 Range Rover Vogue TDV8 Stornoway Grey

The valve seats can't leak oil, do you mean the guides?

30th Jun 2014 10:13pm

TheAllSeeingPie

Member Since: 18 Apr 2012
Location: Leeds
Posts: 848

Valve stem seals I think is what I meant? The tiny little o-rings that should stop oil leaking into the valves?
07 Supercharged - Still breaking her in!

Boot soundproofing part 1 - http://www.fullfatrr.com/forum/topic15612.html
Custom exhaust - http://www.fullfatrr.com/forum/topic15296.html
18" wheels for Brembo equipped cars - http://www.fullfatrr.com/forum/topic15052.html

30th Jun 2014 10:19pm

KurtVerbose

Member Since: 08 Aug 2010
Location: Les Arses
Posts: 5848

Ok.

Think you can do them without taking the head off, but someone knowledgeable will probably come along soon and give a proper answer.

30th Jun 2014 10:21pm

Cam-Tech-Craig

Member Since: 03 Aug 2011
Location: Gloucestershire
Posts: 16315

2015 Range Rover SVAutobiography SDV8 Loire Blue

Are you running on LPG?

30th Jun 2014 10:53pm

vaz

Member Since: 15 Jun 2014
Location: Colne, Lancashire
Posts: 332

KurtVerbose wrote:
Ok.

Think you can do them without taking the head off, but someone knowledgeable will probably come along soon and give a proper answer.

Can't do the valve stem seals without taking the head(s) off, compressing the valve springs, removing the collets and removing the valves.

Steve.

30th Jun 2014 10:58pm

mpirie

Member Since: 26 Jun 2012
Location: In the Highlands
Posts: 904

2013 Range Rover Autobiography SDV8 Luxor

There was an old mechanics trick of removing the spark plug and feeding sone narrow rope into the combustion chamber once the piston was down at the lowest point, then keep turning the engine until the rope compressed in the chamber and would stop the valves dropping in once the valve spring was compressed and the collets removed......giving you access to the valve stem oil seals once the spring was removed.

Done it on a few Ford Pinto's but never a V8........the theory should hold though!

1st Jul 2014 12:41am

TheAllSeeingPie

Member Since: 18 Apr 2012
Location: Leeds
Posts: 848

Nope, no LPG and the engines done 105k miles.
07 Supercharged - Still breaking her in!

Boot soundproofing part 1 - http://www.fullfatrr.com/forum/topic15612.html
Custom exhaust - http://www.fullfatrr.com/forum/topic15296.html
18" wheels for Brembo equipped cars - http://www.fullfatrr.com/forum/topic15052.html

1st Jul 2014 7:35am

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