Oil pump one way valve

[Jim Haseltine]

While I was waiting for the pump seal kit to arrive I got involved with body repairs (as mentioned in another thread) and also noticed that the right rear hose (replaced in 2016) had a surface cut but wasn't leaking. The leak seems to be from a split in the left front hose, the only one that I've not replaced so far. As left front and right rear are inter-linked I've ordered both - ETA another week or so. After what the oil and water pump cost me I could have done without another £500 bill but.....
Oh, and I've solved my tailgate open/close problems in the meantime with a new latch.

[wooders]

Good news on the lack of smoke.

[wooders]

Finally got round to changing the other valve further in and bit the bullet on purchasing the drivers side turbo return res and all the coolant pipes swollen from oil contamination.Finally no smoke and no oil in the intercoolers.

[Jim Haseltine]

I'm now approx 4 months in from my pump rebuild and nothing untoward from the exhaust other than a bit of heavy condensation occasionally. Haven't managed to lose the habit of checking my mirrors for smoke whenever I'm in a traffic queue yet. I think it'll be sometime before I lose that paranoia.

[wooders]

Good to hear. I know what you mean by checking the mirrors, some days you wonder if it was ever going to stop.

[mikkoiv]

Hello all!

Straight to the point, where have you sourced the oil pump seals? I have googled quite a bit but haven't been able to find any good results. Only one post in some German forum that refers to some unnamed Facebook group. I would really appreciate the help. Thank you in advance!

Regards,
Mikko

[Jim Haseltine]

If based in the UK, you can get them from Corey Vernon at Carillon Services in Loughborough (that's where I got mine from) or (I think) from REPerformance. In within the EU, it's a guy called Felix Schonfeld who is in the RS6 C6-OC Facebook group.

[mikkoiv]

Thank you Jim for quick reply!
I'm based in EU so I'll start with contacting Felix.

[Prostrho]

Hello.

First post here. New Owner from Canada.

I just got my RS6 recently imported from
Japan and has had same problem with cold start up smoke issue.

Same symptoms as you guys. Oil in intercoolers. (Right side is worse, drained almost 1L) Huge smoke cloud on start up. Usually If the car has sat for multiple days. Doesn’t really smoke if I drive it every day.

Once the smoke clears after driving it for a bit it runs without issues and no smoke even under hard acceleration.

Would this oil pump one way valve be the most likely culprit?

I was leaning towards turbo as well initially until I found this threads.

Thanks for any advice and tips in advance.

[Jim Haseltine]

I'd say it's almost certain to be the internal valves. Mine started with smoking if it had stood unused for a few days, then moved on to smoking at random when started first time when used daily. Eventually is was at just about every start and sometimes more than once a day. It could fill a good hundred metres of my street up to roof-top level on a bad day - if I moved off as soon as the engine started it would lay down smoke for a couple of miles.
The REPerformance video mentioned at the start of this thread is here https://www.youtube.com/watch?v=pMIqlQYHRSY
It's for a N/A engine - where Ricky mentions the RS6 having the turbo scavenge section and says that the pumps are not the same what he means is you can't directly swap one for the other - the internals, strip down and rebuild of the main part of the pumps are the same. Key to a successful rebuild is assembly lube - I probably went over the top with it and used something like a quarter of a litre of the stuff but at least I had oil pressure as soon as the engine turned over.