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Glibbs



Member Since: 18 Aug 2019
Location: West Somerset
Posts: 101

United Kingdom 2006 Range Rover Supercharged 4.2 SC V8 Tonga Green
4.2 SC Huge amount of gray smoke on startup - 118,000 miles

Good morning,
The subject says it all really so any thoughts short of engine replacement gratefully received but that said, how much would a new/recon engine cost?
It has a full service history.
TIA. Range Rover 4.2 SC
2 Range Rover Classics - one from new but both rusty now.
Rover 3.5 Coupe had since new.
Subaru Legacy 3.0.
BMW K1200RS.

Post #632628 23rd May 2022 10:21am
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Caesium



Member Since: 21 Sep 2021
Location: Essex
Posts: 451

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Santorini Black

Only on startup?

Normally points to valve stem seals. Christian.


Current Cars
2011 Range Rover Vogue SE
2020 BMW M4 Competition
2019 BMW X4

My RR Blog: www.facebook.com/L322Project
or
https://www.fullfatrr.com/forum/topic61540.html

Post #632629 23rd May 2022 10:24am
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Glibbs



Member Since: 18 Aug 2019
Location: West Somerset
Posts: 101

United Kingdom 2006 Range Rover Supercharged 4.2 SC V8 Tonga Green

Thanks for your reply.
I think it's probably worse than that. When I said huge amount of smoke, I could hardly see through it. Range Rover 4.2 SC
2 Range Rover Classics - one from new but both rusty now.
Rover 3.5 Coupe had since new.
Subaru Legacy 3.0.
BMW K1200RS.

Post #632630 23rd May 2022 10:27am
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Glibbs



Member Since: 18 Aug 2019
Location: West Somerset
Posts: 101

United Kingdom 2006 Range Rover Supercharged 4.2 SC V8 Tonga Green

Spoke to the garage and he thinks I've put diesel in it but would the spout from the pump fit the filler on a petrol car? Range Rover 4.2 SC
2 Range Rover Classics - one from new but both rusty now.
Rover 3.5 Coupe had since new.
Subaru Legacy 3.0.
BMW K1200RS.

Post #632635 23rd May 2022 11:05am
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Caesium



Member Since: 21 Sep 2021
Location: Essex
Posts: 451

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Santorini Black

The diesel spout is bigger than the unleaded one.

Mine is diesel so I can’t check the size on mine. Diesel will make the car run really rough as well, not just on startup Christian.


Current Cars
2011 Range Rover Vogue SE
2020 BMW M4 Competition
2019 BMW X4

My RR Blog: www.facebook.com/L322Project
or
https://www.fullfatrr.com/forum/topic61540.html

Post #632637 23rd May 2022 11:29am
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Glibbs



Member Since: 18 Aug 2019
Location: West Somerset
Posts: 101

United Kingdom 2006 Range Rover Supercharged 4.2 SC V8 Tonga Green

I didn't run it for long and the smoke did reduce a little. I put about 45 litres in it to fill up.
Is there a way to find out if the wrong fuel had been put into BP own tanks as I'm pretty sure they wouldn't admit it?
The RAC is coming out so fingers crossed it's just a miss-fuel. Range Rover 4.2 SC
2 Range Rover Classics - one from new but both rusty now.
Rover 3.5 Coupe had since new.
Subaru Legacy 3.0.
BMW K1200RS.

Post #632640 23rd May 2022 11:49am
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dhallworth



Member Since: 10 Oct 2011
Location: Glasgow
Posts: 2983

United Kingdom 2012 Range Rover Autobiography TDV8 Baltic Blue

If they'd put the wrong fuel in the tanks there'd be a queue of broken down cars not far from the garage I'd imagine.

Be interested to see what the AA find though. They'll have something to suck a sample of fuel from the tank I'd have thought.

When stem seals fail you usually get a puff of blue smoke on a cold start and I'd imagine you'd have that for quite a while before you start seeing clouds of smoke from the back. Could be wrong though!

David. 2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2007 Range Rover Supercharged in Java Black with Ivory Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Post #632658 23rd May 2022 1:37pm
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strongstuff



Member Since: 26 Jun 2019
Location: North Wales
Posts: 42

United Kingdom 2007 Range Rover Supercharged 4.2 SC V8 Stornoway Grey

Have a look around your PCV valve, mine had a problem where it was sucking oil out of the engine through the valve and then into the throttle body.

This is a documented failure on Jag forums.

I replaced the PCV, twice, which didn't cure it, there's an updated pipe that goes from PCV to throttle body.

Mine was as you describe, really thick nasty light grey smoke.

PCV Valve To Inlet Breather Pipe 4.2 SC (Genuine) 4696662 4629174 (4696662LR)

I got my pipe from Island. 2008 L322 4.2 V8 SC Stornoway Grey
2006 L322 4.2 V8 SC Java Black

Post #632680 23rd May 2022 3:17pm
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Glibbs



Member Since: 18 Aug 2019
Location: West Somerset
Posts: 101

United Kingdom 2006 Range Rover Supercharged 4.2 SC V8 Tonga Green

The RAC have been and it's not diesel so I'm going for your PCV pipework recommendation as my Indie can't 'see' it for three weeks.

Many thanks to all and much appreciated.

Barrie Range Rover 4.2 SC
2 Range Rover Classics - one from new but both rusty now.
Rover 3.5 Coupe had since new.
Subaru Legacy 3.0.
BMW K1200RS.

Post #632683 23rd May 2022 3:23pm
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philip1972



Member Since: 16 Jun 2017
Location: Marval 87440
Posts: 511

France 2006 Range Rover Autobiography 4.2 SC V8 Java Black

Caesium wrote:
Only on startup?

Normally points to valve stem seals.


Are stem seal a "a thing" on 4.2s?

Post #632694 23rd May 2022 5:00pm
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Glibbs



Member Since: 18 Aug 2019
Location: West Somerset
Posts: 101

United Kingdom 2006 Range Rover Supercharged 4.2 SC V8 Tonga Green

I don't know if they are but they would generate blue smoke i believe. Thanks for your thought though. Range Rover 4.2 SC
2 Range Rover Classics - one from new but both rusty now.
Rover 3.5 Coupe had since new.
Subaru Legacy 3.0.
BMW K1200RS.

Post #632710 23rd May 2022 7:19pm
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Dave lincs



Member Since: 31 Dec 2021
Location: louth
Posts: 39

United Kingdom 

Was it OK before you put fuel in? Whatever the RAC say have you checked your receipt

Post #632712 23rd May 2022 7:42pm
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Caesium



Member Since: 21 Sep 2021
Location: Essex
Posts: 451

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Santorini Black

Other than excess fuel, There’s only two things that an engine can burn to make smoke, thats oil or coolant.
Coolant makes white smoke normally and hard starting.
Oil can make blue or grey smoke. PCV being blocked would usually be accompanied by an oil leak from a seal or gasket due to over pressure in the crankcase. Christian.


Current Cars
2011 Range Rover Vogue SE
2020 BMW M4 Competition
2019 BMW X4

My RR Blog: www.facebook.com/L322Project
or
https://www.fullfatrr.com/forum/topic61540.html

Post #632731 24th May 2022 6:33am
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Glibbs



Member Since: 18 Aug 2019
Location: West Somerset
Posts: 101

United Kingdom 2006 Range Rover Supercharged 4.2 SC V8 Tonga Green

A complete and utter cockup on my part. . .

I topped up the engine oil and didn't put the cap back on. . .

No spillage from the engine, just the smoke plume from the exhaust.

Taking it out today to ensure it's OK.

Thanks for all of your help everyone. Range Rover 4.2 SC
2 Range Rover Classics - one from new but both rusty now.
Rover 3.5 Coupe had since new.
Subaru Legacy 3.0.
BMW K1200RS.

Post #632738 24th May 2022 7:59am
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dingg1



Member Since: 29 Jun 2013
Location: PORTUGAL
Posts: 1271

2007 Range Rover Vogue SE 4.2 SC V8 Stornoway Grey

This has to be a wind up, no one noticed that the oil cap wasn't on?
Mine runs like a bag of spanners without it and it would be apparent immediately imo

Post #632740 24th May 2022 8:20am
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