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Front cam/crank shaft seal replacement

Help and Advice on Volvo's extremely popular car line, powered by Volvo's nearly indestructible, versatile inline 5-cylinder engine.
1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Front cam/crank shaft seal replacement

Postby aahmes57 » 24 Feb 2011, 18:16

I'm leaking oil again.

I can't seem to find a good write up w/ pics for the front cam/crank shaft seal replacement.

Does anyone know if good DIY repair is out there somewhere?

Thank you
1991 740 (saved a life)
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1995 850
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Re: Front cam/crank shaft seal replacement

Postby jblackburn » 24 Feb 2011, 18:32

This and Ozark's timing belt change procedure should help you.
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'98 S70 T5 218K miles
2012 Chevy Cruze LT 6MT


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Re: Front cam/crank shaft seal replacement

Postby aahmes57 » 24 Feb 2011, 19:47

Thanks briefly it looks great.
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Re: Front cam/crank shaft seal replacement

Postby Ozark Lee » 25 Feb 2011, 01:58

The front seals are difficult to remove and replace due to the proximity of the front of the camshafts to the strut tower and the ECU box on the exhaust side and intake side respectively.

One other potential snag is the adjustable cam timing. The cam sprockets have slotted bolt holes and they can be adjusted. In my case I used some spray paint to mark the bolt positions so that I could get the timing on the sprockets back to their stock positions.

...Lee
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Re: Front cam/crank shaft seal replacement

Postby aahmes57 » 25 Feb 2011, 19:38

Thanks Lee. Do you know where your write up is that jblackburn is referring to?
1991 740 (saved a life)
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Re: Front cam/crank shaft seal replacement

Postby jblackburn » 25 Feb 2011, 19:47

It's titled '850 140K major maintenance' as a pinned thread in the forum.

Here ya go.
viewtopic.php?f=1&t=19831
'98 S70 T5 218K miles
2012 Chevy Cruze LT 6MT


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Re: Front cam/crank shaft seal replacement

Postby cn90 » 01 Aug 2012, 15:27

Hey guys,

Is it the consensus here that the FRONT CRANKS seal never leaks (it is part of the Oil Pump BTW)?
If so, then I won't bother with it during the next TB change at 120K.

PS: This tutorial has all the wonderful steps/pictures:
http://www.tracystruesoaps.com/tutorials/850hg/p7.html
1998 S70 GLT 150K+
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Re: Front cam/crank shaft seal replacement

Postby rspi » 01 Aug 2012, 16:11

If it's leaking, you likely need to change it. If it's not leaking, leave it alone.
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Re: Front cam/crank shaft seal replacement

Postby cn90 » 01 Aug 2012, 16:24

rspi wrote:If it's leaking, you likely need to change it. If it's not leaking, leave it alone.


Well,

The reason I ask is that: while I am there (replacing the TB) I may as well do the Crank Seal as I don't want to do the job twice.

However, if people tell me they don't ever have a leak from the Front Cranks Seal, then I won't bother.
1998 S70 GLT 150K+
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Re: Front cam/crank shaft seal replacement

Postby rspi » 01 Aug 2012, 16:29

Again, if it's not leaking, leave it alone. The timing belt is a 2 hour job, don't turn it into a 5 hour job messing with a seal that's not leaking. You would have to remove the crank, likely the starter, which would include the manifold, get the picture? You can do those seals and get t-boned next week. Don't fix what aint broke.
'95 855 T-5R, Panther - 21/27 mpg
'98 S70 GLT, Lil' Red
--------------------
Volvo's of past: '87 740 GLE, '79 262C Bertone, '78 264, '95 960, '97 960, '98 S90, '98 S70 GLT, '95 850 T-5R Yellow
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Re: Front cam/crank shaft seal replacement

Postby xHeart » 01 Aug 2012, 19:49

I am preparing for several tasks at hand. Bolts, screws, seals, hoses, and clamps always deteriorate on mine during taking things off. An example is cv boot replacement. The passenger side axle is a longer shaft. I worry taking it down would stress the parts, then putting it back together I will discover some seal or gasket has worned out during disassembly. So keeping one nearby is comforting, replacing it if maintainance is around the corner.

That link is adds 10 more items to my to-do.
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Who has Front Crank Seal leak?

Postby cn90 » 04 Sep 2012, 20:02

rspi wrote:Again, if it's not leaking, leave it alone. The timing belt is a 2 hour job, don't turn it into a 5 hour job messing with a seal that's not leaking. You would have to remove the crank, likely the starter, which would include the manifold, get the picture? You can do those seals and get t-boned next week. Don't fix what aint broke.


OK,

Agree with you.

This month, I will replace:
- Timing Belt job
- TB pulleys x2
- Front Cam Seals x2

etc. etc.

My question for everyone:
- If you ever had a Front CRANK Seal leak, when did it happen? 150K? 200K? or never?
1998 S70 GLT 150K+
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Re: Front cam/crank shaft seal replacement

Postby precopster » 04 Sep 2012, 22:50

I've never had a crank seal leak but I did replace one in my now sold 850 wagon and in my newly refurbished '99 V70 while the engines were removed.

Ad around 2 hours plus to the job as it's a very awkward job without a hoist. Oh and only use a genuine OEM seal kit for the pump. FCP still can't explain to me why they supplied 2 non OEM kits with o ring seals that drooped around the oil pump.

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Re: Front cam/crank shaft seal replacement

Postby erikv11 » 04 Sep 2012, 23:09

I have three 850s with running engines (180k, 104k and 100k) plus two more engines in the garage (210k and 170k, on dollies and one is soon to go to the scrap yard). On those five engines, I have not encountered any front crank seal leaks.

The 180k did have a leaky RMS even though it had a clean PCV, the others knock on wood.
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