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2003 S40 oil leak

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1996 - 2004 S40
1996 - 2004 V40
jefe
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Re: 2003 S40 oil leak

Post by jefe » Thu Aug 09, 2018 11:29 am

Patience is the key. I was doing a lot of other things to the car at the same time and had it apart in the garage for a month or so working on it 1 day a week on average. The key to that is having an extra vehicle to drive around.

Not sure about the blue smoke though.

kmesse
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Year and Model: 2003 S40
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Re: 2003 S40 oil leak

Post by kmesse » Thu Aug 09, 2018 12:55 pm

darn. What does the exhaust cam do?

jefe
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Re: 2003 S40 oil leak

Post by jefe » Thu Aug 09, 2018 1:00 pm

I'm just saying I'm not sure because I'm not an expert whether oil leaks in those locations could also cause oil burn/blue smoke.

kmesse
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Re: 2003 S40 oil leak

Post by kmesse » Thu Aug 09, 2018 1:01 pm


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alschnertz
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Re: 2003 S40 oil leak

Post by alschnertz » Thu Aug 09, 2018 1:56 pm

I don't think the OP mentioned the mileage on the car.

I think I've seen more references to leaking exhaust camshaft sprockets than camshaft seals.
Like jefe, I did the job twice because I couldn't believe that a camshaft sprocket would leak before a camshaft seal would go.
What a wasted effort.

If I had to do it again because I saw leaks, I would just replace the sprocket and seals at the same time.

Where is the blue smoke "blowing" from?
Out the exhaust or under the hood?
What are the conditions when it blows this smoke? At idle? During driving? Going downhill? When starting cold? etc. etc.
You may want to add more details.
'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE

kmesse
Posts: 48
Joined: Wed Sep 18, 2013 8:28 am
Year and Model: 2003 S40
Location: east hampton ct usa
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Re: 2003 S40 oil leak

Post by kmesse » Thu Aug 09, 2018 8:38 pm

180k miles. blows out the exhaust, it does it randomly. Typically notice when accelerating after idling awhile after it's warm. Don't remember if it does it at startup. Camshaft sprocket sounds like an impossible task for me looking at youtube.

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alschnertz
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Re: 2003 S40 oil leak

Post by alschnertz » Thu Aug 09, 2018 10:06 pm

Since you had the PCV service and with the smoke occurring after extended idling, I'm leaning toward possible worn valve seals as the issue with the smoking.
I don't see how a leaking camshaft sprocket or even the camshaft seals would cause your smoking symptoms.

The sprocket replacement isn't the worst job I've ever done on the car, but it is pretty involved and is easy to screw up if you're not careful.
You need a good assortment of tools in addition to the specialty items like a large torque wrench and torx bits. A camshaft locking tool is a must. Can't do the job without it.
'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE

kmesse
Posts: 48
Joined: Wed Sep 18, 2013 8:28 am
Year and Model: 2003 S40
Location: east hampton ct usa
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Re: 2003 S40 oil leak

Post by kmesse » Fri Aug 10, 2018 4:43 am

I thought of that. Would that show on the plugs? All the plugs were pretty clean.

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alschnertz
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Re: 2003 S40 oil leak

Post by alschnertz » Fri Aug 10, 2018 2:48 pm

All depends on how much is burning.

FWIW, I had some very bad valve seals on my 850.
On a hot day, it would only take a minute or two for it to start puffing smoke at idle.
The plugs never showed any sign of oil contamination.
'60 PV544, '68 220, '70 145S, '86 745T, '95 854T, '01 S40
'84 Prelude
'06 MPV
'13 Ford Focus SE

kmesse
Posts: 48
Joined: Wed Sep 18, 2013 8:28 am
Year and Model: 2003 S40
Location: east hampton ct usa
United States of America

Re: 2003 S40 oil leak

Post by kmesse » Fri Aug 10, 2018 4:32 pm

Is there a procedure somewhere for the valve job? Do I have to get the head out?

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