IPD sale Volvo Parts
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy your stuff using this and it helps MVS!

Oil in plugs

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo 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

User avatar
amblerman
Posts: 155
Joined: Wed Jan 18, 2017 3:29 pm
Year and Model: 1999 s70
Location: Pennsylvania
Has thanked: 1 time
Been thanked: 11 times
United States of America
amblerman

Re: Oil in plugs

Post by amblerman » Mon May 13, 2019 8:52 pm

I don't think that hose should "pop right off" . :-)

As part of the PCV repair you usually replace that hose. I think one issue with that hose is over time it because hard and stops being flexible and no longer seals well. That clamp you see there should be holding it snugly.

Also to make sure you understand what the cap gasket is, take your oil cap off. Look at the bottom of it. You should see a large rubber washer just like the one Tardcart linked two. That is what seals the oil cap to the top of your engine.

Over time those get hard and less flexible. When they do that , they don't seal well. So as your engine is running, oil sprays up and hits the bottom of your oil fill cap. Since the rubber washer isn't sealing well, it leaks out a little bit at a time while the engine is running.

It generally starts pooling in the little valley right behind the oil cap. See green arrow below. It looks like you have some there.
Once that fills up the oil will drain down onto the top of your engine and eventually find the plugs.
oilcap.png
oilcap.png (96.68 KiB) Viewed 53 times



TheOtherside
Posts: 56
Joined: Fri May 03, 2019 5:48 am
Year and Model: 1998 V70R
Location: Appleton, WI
Has thanked: 12 times
Been thanked: 2 times
United States of America
TheOtherside

Re: Oil in plugs

Post by TheOtherside » Tue May 14, 2019 12:55 am

I'll definitely look into a new hose and new cap gasket today.

You guy are true super heroes! Thank you!


98 V70R
13 Flex w/EcoBoost

TheOtherside
Posts: 56
Joined: Fri May 03, 2019 5:48 am
Year and Model: 1998 V70R
Location: Appleton, WI
Has thanked: 12 times
Been thanked: 2 times
United States of America
TheOtherside

Re: Oil in plugs

Post by TheOtherside » Tue May 14, 2019 3:11 am

Ordered the cap. Going to hose clamp the hose, replace the plugs and cross my fingers.


98 V70R
13 Flex w/EcoBoost

User avatar
abscate
MVS Moderator
Posts: 17103
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 180 times
Been thanked: 542 times
Trinidad & Tobago
abscate

Re: Oil in plugs

Post by abscate » Tue May 14, 2019 4:33 am

If you have a good pair of dikes you can squeeze the clamp on the PCV hose and see if it helps. I concur that it’s from the oil filler cap though. A little bit of seep on an old engine I see probably normal and a quarterly mop up with a paper towel might become the best route


1 SWMBO for 30 years
2 Volvos
3 VWs
4 Careers
5 cats/dogs/gears
6 Perfect Ladies in waiting
7 Drivers
8 Boats- with a big pointy metal thing on top

1999 V70 T5M 56 2005 V70 NA M56 VWs BMW

TheOtherside
Posts: 56
Joined: Fri May 03, 2019 5:48 am
Year and Model: 1998 V70R
Location: Appleton, WI
Has thanked: 12 times
Been thanked: 2 times
United States of America
TheOtherside

Re: Oil in plugs

Post by TheOtherside » Tue May 14, 2019 4:43 am

abscate wrote:
Tue May 14, 2019 4:33 am
If you have a good pair of dikes you can squeeze the clamp on the PCV hose and see if it helps. I concur that it’s from the oil filler cap though. A little bit of seep on an old engine I see probably normal and a quarterly mop up with a paper towel might become the best route
I'll see if someone in know has a pair of those. Never used a clamp like that, besides removing old factory ones, Haha.

You guys are seriously great. I can't thank you all enough!!


98 V70R
13 Flex w/EcoBoost

User avatar
Clemens
Posts: 905
Joined: Thu Sep 03, 2015 12:34 pm
Year and Model: 96 855 R + 94 855 T5
Location: Austria
Has thanked: 55 times
Been thanked: 29 times
Austria
Clemens

Re: Oil in plugs

Post by Clemens » Tue May 14, 2019 6:40 am

Not trying to brag here, but my 200.000 mile R stopped weeping oil after doing the PCV twice, clamping down that top hose real good and replacing the oil filler cap seal.


Summer: 1996 855 R
Winter: 1994 855 T5M
Donor: 1995 854 10V

TheOtherside
Posts: 56
Joined: Fri May 03, 2019 5:48 am
Year and Model: 1998 V70R
Location: Appleton, WI
Has thanked: 12 times
Been thanked: 2 times
United States of America
TheOtherside

Re: Oil in plugs

Post by TheOtherside » Tue May 14, 2019 6:50 am

Clemens wrote:
Tue May 14, 2019 6:40 am
Not trying to brag here, but my 200.000 mile R stopped weeping oil after doing the PCV twice, clamping down that top hose real good and replacing the oil filler cap seal.
Thanks brother!

Will update soon!!


98 V70R
13 Flex w/EcoBoost

User avatar
amblerman
Posts: 155
Joined: Wed Jan 18, 2017 3:29 pm
Year and Model: 1999 s70
Location: Pennsylvania
Has thanked: 1 time
Been thanked: 11 times
United States of America
amblerman

Re: Oil in plugs

Post by amblerman » Tue May 14, 2019 7:25 am

BTW. you should still do a test to see if your PCV is functioning correctly. Even if a new clamp and gasket fixes your oil leakage issue, you need to find out if your PCV is working properly. If not, your engine will start pushing the oil out somewhere else and those other places can be way more $$ to fix than a oil filler cap gasket. (ie cam seals or rear main seal.)

To test your PCV, watch this:

If your glove inflates instead of getting sucked in a bit, then you have a clogged system. The inflated glove in the title shot of that video is an exaggeration. You won't ever get it to inflate like that. If your PCV system is bad the glove will inflate a little and the glove will stand up on its own.


-A



TheOtherside
Posts: 56
Joined: Fri May 03, 2019 5:48 am
Year and Model: 1998 V70R
Location: Appleton, WI
Has thanked: 12 times
Been thanked: 2 times
United States of America
TheOtherside

Re: Oil in plugs

Post by TheOtherside » Tue May 14, 2019 7:31 am

amblerman wrote:
Tue May 14, 2019 7:25 am
BTW. you should still do a test to see if your PCV is functioning correctly. Even if a new clamp and gasket fixes your oil leakage issue, you need to find out if your PCV is working properly. If not, your engine will start pushing the oil out somewhere else and those other places can be way more $$ to fix than a oil filler cap gasket. (ie cam seals or rear main seal.)

To test your PCV, watch this:

If your glove inflates instead of getting sucked in a bit, then you have a clogged system. The inflated glove in the title shot of that video is an exaggeration. You won't ever get it to inflate like that. If your PCV system is bad the glove will inflate a little and the glove will stand up on its own.


-A
Thanks for the heads up! I took a few rubber gloves from work (shh, don't tell) and tried that yesterday.

It did not inflate. It's pretty nerve-wracking waiting to see what happens, haha.


98 V70R
13 Flex w/EcoBoost

Post Reply