I've never had any reason to remove the oil lines to the turbos except to replace the turbos with a/m, off-course the engine was out out so it was easy. others here may have, so i dont know if it can be done engine in, I'd say yes, but it would be painful. One thing I do know is that if a shop dose the work your looking at 1200 to 1500 $ to replace small round ten dollar bit of metal with a hole in the centre, if in fact the restrictors are missing in the first place. You'd want to be sure there really gone before you engage a shop.
ok i spoke to the previous owner again today and he says he drilled out the restrictor on the passenger side turbo but couldnt drill out the one on the driver side he said it was on the block or something like that...he say he did it because its better for the turbos on high boost...his english is not the best for me to understand...he did say i could put the restrictors back in and gave me the number of his mate that could do it but he said it wouldnt be good for the turbos. he said the turbos are high flow 320hp garretts the profile is 2860rs and they are only 7 months old. he also said that the tune it has is running on 18pound boost what do you think ?
The restrictors for those turbos, are in the lines from the block to the turbos. He could be talking the ball check restrictors that are inside the block just off the main oil gallery. If thats the case you have to remove the engine dissemble it, and replace a small ball bearing, it wont be something you can do! and will be expensive. Usually they are drilled out and replaced when an engine is rebuilt.
The restrictors for the 2860 turbo's are in the oil feed fitting that screws into the turbo, not in the lines or block. The factory oil pressure sensor tee has a restrictor in it, he may have drilled this one out, if so, as long as the restrictor is still in the turbo feed fitting, then that won't be a problem. The restrictors in the deck of the block are to restrict oil flow to the VTC gears and would not cause any smoke issues at all. The check balls in the deck are to prevent oil drain back from the lifters and also will give no smoke issues if not there.
LOL the restrictors are part of the oil feed line, If you remove the feed line you remove the restrictor with it. Look at post 19, I've put nice red arrows where the oil feed taps into the block, and where it connects to the turbo, the threaded bit on that end of the line is the restrictor. The new owner is not really sure what the previous owner has done, but it sounds like he drilled one of the turbo restrictors bigger, over 0.35 to who knows what. but no one is sure.
Have another guess. The restrictors are in the brass fittings that screw into the chra, the feed fittings.
Well I always thought they were in line restrictors, but I'm no turbo expert. http://www.z1motorsports.com/product_info.php?cPath=6_16&products_id=94 Kit includes: 1. 2- New Garrett GT Ball Bearing Turbochargers 2. 2- New high pressure adjustable wastegate actuators and brackets 3. 2- Braided Stainless Steel Oil feed lines with .035" Restrictors and fittings 4. 2- turbo -> manifold metal gaskets 5. 2- 5 bolt turbo -> downpipe metal gaskets 6. 10 - Copper crush washers for coolant and oil lines 7. 6 - Turbo to downpipe stainless steel bolts 8. 2- Turbo inlet O-rings 9. 2- 5 ply high temp silicone couplers for compressor outlets 10. 4- 225 mm T-bolt clamps 11. 2 feet of Z1 reinforced silicone turbo coolant hose 12. 6 feet of Z1 reinforced silicone wastegate
I think the wording suggests they are in the lines, but the picture shows what look like the brass restrictors in the 90 degree end.
I think I would find out from this previous owner who did the work and go and see them. Explain what the problem is to them. Hopefully they will be able to enlighten you on what has actually been done, and then help you fix the problem.....otherwise you are just shotting in the dark.
Sorry guys ive been away for a while...im now in qld for a little while i drove my 300 up here...it is definately oil that is comming out in the form of smoke on the drive i checked it after doing about 1000km and the oil level had droped serverly to almost nothing on the dipstick...it was full when i started my trip. i rang the zshop again and told them that whaever they did to stop it from smoking didnt work...they now want me to pull my plugs out and see if they have oil stains on them...why do they want me to check that ? is ther a good work shop up here in or near bris that works on 300's i am probably just repeating myself and i am trying to take in as much info as yous have given me...what i have gathered so far...because the restrictors are none existant to much oil is being forced into the turbo and then being forced out the seals hence the smoke and oil loss ...does that sound rifgt so far. that seems like the most likely reason because it only smokes under heavier acceleration and if the seals are no good that would be why it smokes on idle after it has been sitting for a while(the smoke does go away after a while while idleing) i hope i have not confused to many of you lol...and i hope im not being to annoying by going over crap again lol. does anyone else think that sounds right...im new to most of this and it seems right to me.
ahhhh yes i remember seeing that now thanks. do you work there or is it your shop. ? got time to see me tomorrow ?
It is my own shop, drop in anytime toomorrow, 9-5. There is no street number on the complex, but look for grey buildings with yellow facias just past the Matilda service station.
