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Oil seal leaking?

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Rvolvos
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Re: Oil seal leaking?

Post by Rvolvos »

MoVolvos wrote: Tue Nov 26, 2019 7:17 pm If you plan on monitoring the leak give the ATP AT-205 Re-Seal Stops Leaks a try. Not sure how those seals are made but it could be a stop gap before replacing them.
viewtopic.php?f=11&t=91668&p=522606#p522606
Thanks I did add it for the exact same reason. No time to work on this car. Currently busy fixing up a C30 with a m66 manual transmission with donor parts.
2006 XC70 2.5T 190k
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Re: Oil seal leaking?

Post by MoVolvos »

Rvolvos wrote: Tue Nov 26, 2019 8:40 pm
MoVolvos wrote: Tue Nov 26, 2019 7:17 pm If you plan on monitoring the leak give the ATP AT-205 Re-Seal Stops Leaks a try. Not sure how those seals are made but it could be a stop gap before replacing them.
viewtopic.php?f=11&t=91668&p=522606#p522606
Thanks I did add it for the exact same reason. No time to work on this car. Currently busy fixing up a C30 with a m66 manual transmission with donor parts.
When I can get to my son's 08 C30 M66 R-Design or 2.0 for the 08, 09 year I think, I'll share them with you. So far just rear shocks front and rear brakes and alignment. Need some front struts for sure and perhaps some iPD rear sways and front Viva Tower Bar.
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110419 - IPD - Anti-Sway Bar Kit - P1 S40 V50 C30 C70 Models
https://www.ipdusa.com/products/4894/11 ... ipd-110419
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Strut and Chassis Braces
https://www.vivaperformance.com/strut-a ... -braces-1/
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Rvolvos
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Re: Oil seal leaking?

Post by Rvolvos »

Rvolvos wrote: Tue Nov 26, 2019 8:40 pm
MoVolvos wrote: Tue Nov 26, 2019 7:17 pm If you plan on monitoring the leak give the ATP AT-205 Re-Seal Stops Leaks a try. Not sure how those seals are made but it could be a stop gap before replacing them.
viewtopic.php?f=11&t=91668&p=522606#p522606
Thanks I did add it for the exact same reason. No time to work on this car. Currently busy fixing up a C30 with a m66 manual transmission with donor parts.
While I was working on swapping the ignition coils I had to remove the timing belt cover. The Rh side of the timing belt is soaked in oil and the inside of the cover has a projection path of oil. The oil around the inlet vvt hub has dried-up, so the oil must come from the oil pump. I have cam seals, oil pump seal kit and a new timing belt on order.
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Re: Oil seal leaking?

Post by - Pete - »

I recently did what it sounds like you’re about to embark on - cam & crank seals. I got everything disassembled & it was very evident that neither intake nor exhaust front cam seal were leaking and this was at around 283,000 miles.

What I found the most significant source of the leak to be was the VVT hubs themselves. There are a number of o-rings in the assembly that cannot be replaced. One of these can & I attempted to do this but ultimately ended up replacing both VVT’s.

My crank seal was leaking just a small amount so I replaced it and the thin gasket behind the oil pump as well. I would recommend purchasing the oil pump gasket & crank seal as a kit, it’s much cheaper. I did also replace all 4 cam seals, even though they didn’t show even a slight trace of leaking.
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Re: Oil seal leaking?

Post by Rvolvos »

- Pete - wrote: Sun May 24, 2020 7:43 pm I recently did what it sounds like you’re about to embark on - cam & crank seals. I got everything disassembled & it was very evident that neither intake nor exhaust front cam seal were leaking and this was at around 283,000 miles.

What I found the most significant source of the leak to be was the VVT hubs themselves. There are a number of o-rings in the assembly that cannot be replaced. One of these can & I attempted to do this but ultimately ended up replacing both VVT’s.

My crank seal was leaking just a small amount so I replaced it and the thin gasket behind the oil pump as well. I would recommend purchasing the oil pump gasket & crank seal as a kit, it’s much cheaper. I did also replace all 4 cam seals, even though they didn’t show even a slight trace of leaking.
Thanks much for your response, I have read through your posts and from Xheart, very helpful.
Yes I ordered the oil pump kit at FCP. FYI they have only Corteco seals for the rear end of the cam.
I am hoping the hubs are okay otherwise I have to purchase 2 vvt cams, which will be close to $600. I have to measure the shaft play. They feel tight with the belt on.
My plan is to do the seals first, clean everything up and monitor. Worst case a have to replace the timing belt again.
Buying used hubs is that a option, from a lower mileage car?
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Re: Oil seal leaking?

Post by - Pete - »

And that was a big deterrent for me too - the cost of the new hubs. I guess at almost 300k miles the cost has spread itself out alright. I plan to keep this car in service for many more years, so I just had to cough it up. Its fuel mileage is wonderful, even with a stage 1 tune file in the ECM and it makes pretty good power. I drove to Kansas City and back in one day a couple weeks ago (~1000 miles) & averaged 26mpg with the cruise set at 76. Leaks drive me nuts, especially ones that fling around inside the timing cover.

I went with new hubs because I didn’t want to go through the work & have it still leak. Also, everything I read about the hubs made it clear that the complex gearing mechanism inside them is pretty much gone/worn out completely by 150k.

Do you already have your tools? Cam locking tool, T55, anaerobic sealant, etc.
If not I can send you the same little box of stuff I sent to Xheart for when he did his. Probably save you enough to buy half a VVT hub anyhow :D
2001 V70XC 146k
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Re: Oil seal leaking?

Post by Rvolvos »

- Pete - wrote: Mon May 25, 2020 5:20 pm And that was a big deterrent for me too - the cost of the new hubs. I guess at almost 300k miles the cost has spread itself out alright. I plan to keep this car in service for many more years, so I just had to cough it up. Its fuel mileage is wonderful, even with a stage 1 tune file in the ECM and it makes pretty good power. I drove to Kansas City and back in one day a couple weeks ago (~1000 miles) & averaged 26mpg with the cruise set at 76. Leaks drive me nuts, especially ones that fling around inside the timing cover.

I went with new hubs because I didn’t want to go through the work & have it still leak. Also, everything I read about the hubs made it clear that the complex gearing mechanism inside them is pretty much gone/worn out completely by 150k.

Do you already have your tools? Cam locking tool, T55, anaerobic sealant, etc.
If not I can send you the same little box of stuff I sent to Xheart for when he did his. Probably save you enough to buy half a VVT hub anyhow :D
Thanks much for the offer, very kind. But I ordered the tools and the sealant together with the seals and oil pump seal kit ( May need the sealant for the oil pan on the V70). If you don’t mind I may want to ask for details of what you used for the oil pump seal installation.
Good to hear that your Volvo is still running good at 300k miles. That is assuring!
I am also trying to solve a hot start issue ( see my other post) that’s why I hesitate to invest that much in the car. Also I never got better mileage than 20mpg , currently at 16.2 mpg. Did you ever replaced your MAF or O2 sensors?
Can’t have any leaks on the driveway, we are renting and staining the driveway could cost more than what the car is worth, so I have to fix leaks.
If the VVT hubs are worn at 155kmiles it does not make much sense to look for used ones from another P2.
Just checked pricing on the vvt hubs and found this at FCP
https://www.fcpeuro.com/products/volvo- ... s-9497786s
I may add these to my order as a temp fix.
Last edited by Rvolvos on Mon May 25, 2020 8:45 pm, edited 1 time in total.
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Re: Oil seal leaking?

Post by vtl »

- Pete - wrote: Mon May 25, 2020 5:20 pm And that was a big deterrent for me too - the cost of the new hubs. I guess at almost 300k miles the cost has spread itself out alright.
Wife's FORD XC60 developed a wobble and vibration in intake hub at ~40k miles :-\ How awful is it? Less than 2 months out of warranty.

Mine are still good at 220k miles.
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Re: Oil seal leaking?

Post by - Pete - »

I’ve been tempted by the alluring body styles of the newer Volvo’s but I guess I’m just into stuff that lasts. Sorry to hear about that VTL, and good to know! Do yours exhibit much for axial play? Mine didn’t have much, but enough so that that inner o-ring was leaking where it is supposed to seal around the end of the cam shaft.

I have never replaced any MAF, but have cleaned them. Don’t use anything except MAF cleaner for them & don’t make physical contact with any part of it. Let air dry as well. I haven’t had to change an O2 sensor either. I have removed & reinstalled both on all my P2’s though. I do run a defouler/O2 spacer on two of my downpipes. Could try that if you’re suspecting the downstream O2 is flakey. They’re like $10-15, can get straight, 45 degrees, 90 degrees. You should see a code though if it’s O2/cat efficiency related.

I did also replace the TCV and MAP sensor recently, as well as the ETA (electronic throttle assembly, 01-02’s were called ETM). Been chasing a very strange boost issue that reveals itself seldomly. It has gotten much better with what I’ve done, but still happens once in a while. It’s not that bad, when it happens I only make 7psi, which is stock. My tune is supposed to target 14 psi, which it generally holds steady.

For those o-rings on FCP, I would absolutely try them out. They must have just added those to inventory. Worst case, you’ll have a smaller leak than before. When I tried it I kept getting sent incorrectly sized o-rings & basically couldn’t tie up my space with the car any longer so said to hell with it & got the hubs.

For the crank seal I just cut down the neck of a plastic funnel & lubed it & the seal so it could “ramp” it’s way up & over the stepped nose of the crank. Xheart put a picture of him using it to do his crank seal in his thread. Definitely install the oil pump gasket, O-ring & pump first, then do the seal.
Last edited by - Pete - on Mon May 25, 2020 9:38 pm, edited 1 time in total.
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Re: Oil seal leaking?

Post by vtl »

It has a visible play, t-belt slipped to outer edge, vibration sound was located and confirmed with stethoscope, and I still remember these symptoms on a 12 y.o. V70 that had a bad VVT hub. Same vibration sound, I even found my old video to confirm that.

In XC70 I had all the sensors replaced recently as a preventive maintenance, along with coil packs and the starter. It was not cheap (nor too expensive), but I'm confident now they won't throw random glitches at me for the next 10 years.

So now I drive around the block (COVID lockdown...) and watch at how these sensors work ;)

05 XC70 265k, 16 XC60 45k, 19 Tundra 5k
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