I was bad lucky with the check valves....Had to order both oil pressure lines and also two check valves. The fittings were completely seized on the oil line. Even after heating them red hot and cooling fast, or after a bath in release oil for over a week, I was not able to move the fitting without twisting the lines. There seems to be a chemical reaction between these two metal parts making them to fuse together + corrosion ...I did inspect the check valves and found one not being completely airtight....Another surprise expenses...

 

Mine just arrived the other day, had to order them in. Hope it shouldn't be too bad as the cr came from Cali and its in Vancouver now where we don't get snow either so it's never seen salt.

 

What was the cost for all parts?

 

The oil pressure lines to the check valves are not that bad. 35 and 50 bucks each. I had to replace the oil tank to engine line. That was $110.00

I can only hope that at some point there will be an aftermarket alternative.

 

Pressure line R/H: 996 107 220 72: $56.65,
Pressure line L/H: 996 107 219 72: $37.43
Check valves X 2: 996 107 030 78: $72.44 X 2 : $144.88
Copper washers at the base of the check valves X 2: 900 123 005 20: $0.26 X2:$0.52
Total of: $239.48

Prices are from Sonnen.

 

Thanks jp that's around what I paid.

 

Any update on whether or not this fixed your problem?

Thanks,
Steve

 

Sorry not to update this but 100% yes it fixed my issue. No more smoke....ever. If you can believe that
Steve try doing what I mentioned in the first post, let the car cool for the required two/three minutes then give it a quick shot of gas (2k rpm range) then let the idle return to normal then quickly shut the car off.
See if this changes any amount of blue smoke you got.
The reason I think it worked for me is that giving the quick shot of gas then shut down possible causes the sticky valve to actuate as it was getting a quick shot of higher oil pressure then back to normal forcing it to move, then sealing up better not allowing the turbos to get overwhelmed with oil as the car sits not running.
It greatly changed my problem making me think it was the check valves and sure enough it was. The nice thing is there cheap but a pain to change as the line is really stuck on.
Good luck.

 

Thanks for the update.

 

you should properly cool down the car, to avoid this.