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  #1  
Old 11-28-2011, 02:11 PM
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Default common oil leak locations?

Hi,

I have a pretty good leak and need a little help identifying the source.

The bottom of the transmission is soaked, but the fluid does not appear to be red or smell like transmission oil. The leak was minor, but after a couple hours of driving over thanksgiving vacation it is a little more significant and leaking puddles on my driveway. Also, much of the underside of the vehicle is now coated. Because it has spread I am having a hard time finding the source. The upper parts of the engine and transmission appear to be dry and clean.

I do have a hunch. But I am hoping I am wrong.

Any experience with leaks with my symptoms?

Thanks
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Old 11-28-2011, 02:24 PM
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I just fixed my oil leak on my 850 R Same condition i thought it might be a real main seal. Turned out it was the Turbo oil return line. Good friend of mine is a Volvo Tech, this was the first thing he told me to check. Here is the link for the repair. Part cost $9.00 buck from Volvo for gasket and o-ring.

Volvospeed Volvo Performance Parts Repairs And Turbo Modifications - 850 V70 S70 C70 Dripping Turbo Oil Return Line
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Old 11-28-2011, 02:28 PM
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I should have mentioned this it not a turbo wagon
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Old 11-28-2011, 08:01 PM
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Still haven't given us any car info???
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Old 11-28-2011, 08:09 PM
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95 850 wagon non turbo automatic
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Old 11-28-2011, 08:15 PM
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Cam Seal Replacement, rear, 1998 Volvo S70 GLT - Volvo 850 Cam Seal Replacement

Rear main seal, cam seals, oil cooler lines.

When was the last time the PCV system was replaced?
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Last edited by rspi; 11-28-2011 at 08:16 PM. Reason: add
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Old 11-28-2011, 08:33 PM
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The cam seal areas is dry.

Does the non turbo have oil cooler lines?

I'm hoping its not the rear main seal.

I just purchased the car and have not touched the PVC. When do the PVC systems need rehab? Vehicle only has 80K.
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Old 11-30-2011, 11:00 AM
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I checked the PCV system by looking for smoke from the oil dipstick. I also placed a latex glove over it to see if any air was making its way out. Neither showed any signs of a bad PCV system.

I'll wash the motor underside next so I can start fresh looking for the leak.
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  #9  
Old 11-30-2011, 02:17 PM
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Quote:
Originally Posted by slowtype View Post
The cam seal areas is dry.

Does the non turbo have oil cooler lines?

I'm hoping its not the rear main seal.
N/A's do not have oil cooler lines other than the transmission cooler lines.

Best thing to do is pressure wash that thing till its squeaky clean then watch intently for a few days.

I am thinking its is the rear main but you should find out for sure before you head down that path. Honestly you can change that seal in a day. Its a lot of work but can be done.
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  #10  
Old 11-30-2011, 06:38 PM
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I would check the oil cap seal!! Very much missed when looking for leaks. It will leak out and get under the spark plug wire cover and leak down the backside of the engine/ transmission side, it can get between the trans and engine and look like maybe a rear main seal. The cap seal should be replaced every other oil change, only a couple bucks at the dealer! If you look up at the back side of the engine you'll see it running down from valve cover.

But yes check or do PCV if not done yet!
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Old 11-30-2011, 06:38 PM
 
 
 
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1997, 850, 97, cam, cooler, leak, line, lines, main, oil, rear, seal, seals, transmission, versus, volvo


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