1996 850 T5 exhaust manifold crack or leaking?

z2003 · Post by **z2003** » 19 Oct 2013, 01:30

Hi, there

I found light smoke from (around) exhaust manifold. I checked there have some oil leaked. please help me to clarify where it come from. I cannot find anything wrong outside.
my 850 T5 is around 120KM. and I just change cap, plug, wires, some elbow. cleaned PTC, ...

Post by **erikv11** » 19 Oct 2013, 10:42

The oil is probably leaking from up above. Pull the plastic off that covers that spark plug wires and check for oil on top of the cam cover. If there is oil pooling up in that area, check the gasket on your oil filler cap (should be pliable not hardened) and more likely, the PCV may need to be serviced.

z2003 · Post by **z2003** » 19 Oct 2013, 12:07

thank you for your reply. I was checked top block and there is clean. I also take off the heat shield. there also clean. I wonder it may come from broken seal of exhaust manifold? However, there have no smoke out from end of exhaust pipe.

850TurboTurtle · Post by **850TurboTurtle** » 19 Oct 2013, 13:43

When I removed my manifold (250k miles) I found that the sandwich gasket (metal-fiber-metal) was all broken apart and had been for quite a while, and was leaking exhaust gases. (Could smell it in passenger compartment.) But I never saw any oil leaking under the gasket. If you had enough oil in the exhaust to cause a run like that, you'd see it in your tailpipe. I'd suspect PCV and leaking around the oil fill cap from pressure. (Take w grain of salt - I'm no mechanic.)

Post by **MoVolvos** » 19 Oct 2013, 16:56

z2003 wrote:I wonder it may come from broken seal of exhaust manifold? However, there have no smoke out from end of exhaust pipe.

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The oil is fresh and there should not be that much oil in the exhaust system. It is from the top somewhere on the end. If you look at the three pictures of the exhaust side of the motor you'll see nothing there except the Gasket on top or Cam Seal. Perhaps oil flowing back to the left side of the Manifold from the Cam Seal.

http://wakingupthemoose.blogspot.com/20 ... chive.html

Blessings,

BKM

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z2003 · Post by **z2003** » 20 Oct 2013, 09:47

I remove the heat shield and checked very carefully. (maybe not enough) but I cannot see oil around place. please see the pic:

Post by **MoVolvos** » 20 Oct 2013, 23:59

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Your first picture with the leak looks like the driver's side. The second picture looks like the middle and the third picture looks like the Timing belt side of the exhaust manifold. Can you take the first picture again but further back so we can get a broader view of the entire area that is leaking.

If possible give us a description of the area for each picture you take. Thanks.

Blessings,

BKM

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z2003 · Post by **z2003** » 21 Oct 2013, 11:37

Hi, BKM
The picture take from one position - passenger (LHD) side firewall. I use phone to make the picture so can not get more wider

the leak one is exhaust manifold - which is between first exhaust (of cylinder) and second. (from timing belt side)

I will try put more pic tomorrow

thanks!

z2003 · Post by **z2003** » 23 Oct 2013, 08:32

more pictures around:

Post by **MoVolvos** » 23 Oct 2013, 12:41

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Do you change the oil yourself or have a shop take care of it?

Blessings,

BKM

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