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Power steering pump leak - o-ring?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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abscate
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Re: Power steering pump leak - o-ring?

Post by abscate »

Could be leaking ps fluid or a seeping thermostat. Any coolant loss? Oil smoke smell is acrid and sharp. Coolant sweet. Ps fluid just a bit oily
Empty Nester
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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5rivers
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Post by 5rivers »

I've narrowed down the sound - it appears to be coming from the front camshaft - I suspect a seal, maybe, that could be emitting the black oil like substance that is beginning to cover the back side of the alternator. Thoughts?
Still not sure where the smoke is coming from, but definitely coming up from behind and underneath the thermostat housing. Did not notice fluid of any kind, even stuck a q-tip down there, but it was dry. Doesn't smell like burnt oil. Coolant level has not decreased. Power steering fluid level has remained the same. I'm at a loss here!
Appreciate your thoughts!
5rivers
1998 V70 M56, silver/grey, has tranny issues, #?# owner, 330,xxx miles, a handy parts car
1998 V70 AT, nautical blue, 2nd owner, 260,000 miles, Sold
1998 V70 AT, T5, forest green, 3rd owner, 172,300 miles, Mimas 16" rims

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abscate
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Post by abscate »

Fresh oil leaking from cam seal, and is getting heated on block and 'smoking off'

Watch your engine oil level and deal with it in the Spring.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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pfmet
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Post by pfmet »

If you suspect a cam seal keep,a VERY close eye on it/engine oil. I had a cam seal come completely out of the head last winter and push over two quarts out before I noticed it. And the motor was sucking the glove out of my hand at that time. No crankcase pressure involved.

5rivers
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Post by 5rivers »

I appreciate the heads-up, pfmet! Hope your seal breakdown did not cause too much damage!
Stay warm!!
5rivers
1998 V70 M56, silver/grey, has tranny issues, #?# owner, 330,xxx miles, a handy parts car
1998 V70 AT, nautical blue, 2nd owner, 260,000 miles, Sold
1998 V70 AT, T5, forest green, 3rd owner, 172,300 miles, Mimas 16" rims

5rivers
Posts: 530
Joined: 27 February 2009
Year and Model: V70 1998 T5
Location: The North Country, NYS
Been thanked: 14 times

Post by 5rivers »

Getting ready to replace the cam seal, but...I have to remove the sprocket and belt in order to reach the seal!! OMG! I'm not looking forward to this repair job with any enthusiasm!
On the sprocket bolts are there torque values I need to be aware of? Or just tighten the bolts so they line up with my scratch marks on the bolt heads with those I've marked on the sprocket?
Appreciate your thoughts!
5rivers
1998 V70 M56, silver/grey, has tranny issues, #?# owner, 330,xxx miles, a handy parts car
1998 V70 AT, nautical blue, 2nd owner, 260,000 miles, Sold
1998 V70 AT, T5, forest green, 3rd owner, 172,300 miles, Mimas 16" rims

User avatar
abscate
MVS Moderator
Posts: 35267
Joined: 17 February 2013
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
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Post by abscate »

They are m6 socket bolts so not crazy tight, like firm wrist torque only on a 6 inch ratchet

From alldata 20 Nm

Camshaft Pulley .................... 20 Nm (15 ft lb)
Timing Gear Pulley, Camshaft without VVT .................... 20 Nm (15 ft lb)
Timing Gear Pulley, Camshaft with VVT .................... 10 Nm (7.5 ft lb)
Camshaft Pulley with VVT, center screw .................... 120 Nm (89 ft lb)
Camshaft Pulley with VVT, center plug .................... 35 Nm (26 ft lb)
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread

5rivers
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Joined: 27 February 2009
Year and Model: V70 1998 T5
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Post by 5rivers »

Thanks, Steve!
Always a life-saver :)
5rivers
1998 V70 M56, silver/grey, has tranny issues, #?# owner, 330,xxx miles, a handy parts car
1998 V70 AT, nautical blue, 2nd owner, 260,000 miles, Sold
1998 V70 AT, T5, forest green, 3rd owner, 172,300 miles, Mimas 16" rims

5rivers
Posts: 530
Joined: 27 February 2009
Year and Model: V70 1998 T5
Location: The North Country, NYS
Been thanked: 14 times

Post by 5rivers »

So, I've removed the belt from the sprockets, and removed the intake sprocket, and alas...there is no oil leaking from the camshaft seal!
Am wondering again, if there is a seal (or seam?) on the bottom of the power steering pump that may be cracked, could that be where the black oil is coming from? The oil has now covered most the alternator. Should I remove the pump to locate the exact leakage location?
Any thoughts?

Am thinking I will need to try to clean the alternator, but what's the likelihood it will need to be replaced?
5rivers
1998 V70 M56, silver/grey, has tranny issues, #?# owner, 330,xxx miles, a handy parts car
1998 V70 AT, nautical blue, 2nd owner, 260,000 miles, Sold
1998 V70 AT, T5, forest green, 3rd owner, 172,300 miles, Mimas 16" rims

5rivers
Posts: 530
Joined: 27 February 2009
Year and Model: V70 1998 T5
Location: The North Country, NYS
Been thanked: 14 times

Post by 5rivers »

So, I've removed the belt from the sprockets, and removed the intake sprocket, and alas...there is no oil leaking from the camshaft seal!
Am wondering again, if there is a seal (or seam?) on the bottom of the power steering pump that may be cracked, could that be where the black oil is coming from? The oil has now covered most the alternator. Should I remove the pump to locate the exact leakage location?
Any thoughts?

Am thinking I will need to try to clean the alternator, but what's the likelihood it will need to be replaced?
5rivers
1998 V70 M56, silver/grey, has tranny issues, #?# owner, 330,xxx miles, a handy parts car
1998 V70 AT, nautical blue, 2nd owner, 260,000 miles, Sold
1998 V70 AT, T5, forest green, 3rd owner, 172,300 miles, Mimas 16" rims

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