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-   -   DIY Solution to M54-M52TU CCV problems (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/99551-diy-solution-m54-m52tu-ccv-problems.html)

puddinboo 05-05-2020 08:40 PM

Did you take your spark plugs out to check for oil on them?

Blackjetvette97 05-06-2020 04:28 AM

2 Attachment(s)
Quote:

Originally Posted by puddinboo (Post 1182911)
Did you take your spark plugs out to check for oil on them?

puddinboo, thanks for the reply. Took out 5 of 6.....ALL have oil on them:thumbdown
Didn't bother with 6th. What next?!?!

puddinboo 05-06-2020 07:47 AM

Quote:

Originally Posted by Blackjetvette97 (Post 1182927)
puddinboo, thanks for the reply. Took out 5 of 6.....ALL have oil on them:thumbdown
Didn't bother with 6th. What next?!?!

take the 6th spark plug out, crank the engine with no spark plugs. And let the oil fly out of the cylinders ,the oil will go everywhere ,but you need the oil out of there. Your engine can hydro lock with just a teaspoon of oil and can do catastrophic damage to your engine.
( did your engine lock up while driving?)

Blackjetvette97 05-06-2020 07:16 PM

Nope, engine didn't lock up while driving. After first noticing smoke, prob 30 seconds before it was parked and shut down. Addition of oil after checking level, 2nd start-up/drive to shady spot was about 20 seconds and it was still running ok, other than smoking sumthin fierce! That's all that it's been run. I don't see liquid in cylinders(other than on plugs a bit), just oily kind of goo. Should I disable the fuel before cranking engine? Could a CCV failure cause this by sucking oil into cylinders? That's what I'm ascertaining from all the CCV reading I've done. Thanks for your help!


Steve

puddinboo 05-06-2020 07:25 PM

The ccv would cause this issue. Do you change the ccv every 2 yrs? Do you live in a cold climate? You can leave the fuel hooked up, I did and no issues.

Overboost 05-06-2020 08:41 PM

The CCV failures are almost always when the car sits out for a night in sub freezing temperatures and the mayo collected in the CCV freezes. How cold was it in Vegas that night and how long had your daughter been driving. If more than 1/2 hour, I doubt the CCV froze. :dunno:

Blackjetvette97 05-06-2020 09:01 PM

I live in a burb of Vegas(Henderson-kinda up in hills), so don't know if we're considered a "cold climate" or not. My X DOES have the CC package on it, although most of foam sleeves have LONG rotted and broke away(finished off the sliver left on the rigid 3/8"(?) connector tube on distribution when I disassembled that). The foam on oil drain line was still in good shape, from the little I dealt with when under the car, removing it/fitting cap/fitting it back over cap. The other CCV lines have what seems to be a neoprene-type sleeving over the plastic hoses down through top to sep(what do we do with those cut lines on this mod, just leave them be, open??). It does get below freezing at my house(I park X outside/no room in 2-car garage), but not very far below or for extended periods of time in winter. LOL on the 2 year replace schedule(see my orig comment!):yikes: Oil sep "Might" have been replaced since I've owned(Dec '03) the vehicle(would have to go through my paperwork and check though, but don't remember it and I've never done it MYSELF). Can I put a towel lightly over ALL the cylinders to try to "catch" the flying out oil(and maybe some cardboard under that side(in engine bay) to catch too? How much should I crank engine? Like off and on or leaving it cranking for a minute or.....??? Lastly, is there anything I can run through engine to clean all the oil gunk out that's infiltrated the cylinders before I put in new plugs?

Thanks
Steve

Blackjetvette97 05-06-2020 09:11 PM

Quote:

Originally Posted by Overboost (Post 1182987)
The CCV failures are almost always when the car sits out for a night in sub freezing temperatures and the mayo collected in the CCV freezes. How cold was it in Vegas that night and how long had your daughter been driving. If more than 1/2 hour, I doubt the CCV froze. :dunno:

Thanks for reply, Overboost. It was about 95F chilly outside last week when we took it out for drive:rofl:
It was prob 70F-ish for the overnight low that car was in that previous night, so there was ZERO chance of freezing. We were prob driving it for about 30-45 mins by the time it triggered the smoking at turn signal into mall. If CCV fails mid-drive, can this situation still occur with oil getting sucked up? I'm guessing that as we slowed down to come to full stop at turn, that's the exact moment that something went wrong and smoke began. We were waiting for 2 bike riders to see if they were gonna cross street(on red) or wait for us(our right-of-way). I saw their reaction of looking at back of our car and looked back to see smoke. Puled in and parked quickly.

Steve

Blackjetvette97 05-08-2020 04:15 AM

1 Attachment(s)
Quote:

Originally Posted by puddinboo (Post 1182928)
take the 6th spark plug out, crank the engine with no spark plugs. And let the oil fly out of the cylinders ,the oil will go everywhere ,but you need the oil out of there. Your engine can hydro lock with just a teaspoon of oil and can do catastrophic damage to your engine.
( did your engine lock up while driving?)

Took last plug out, covered spark plug wells with paper towel, cranked it for a few secs twice, and only got very few specks of oil thrown out. Looks like there's a bunch of semi-dried oil gunk in there, maybe from X sitting idle for a week or so. Is there anything I can spray in there to dissolve that gunk out a bit before putting it back together to test?? Or should I even try to clean that gunk in wells at all? Will engine running(if it can and does) purge that junk as it goes?
I've cleaned all plugs really well, so I'm gonna reinstall those for the test run....They're all in good shape still(only about 25K miles on 'em).

Thanks for any help!

Steve

Fifty150hs 06-03-2020 10:13 PM

Just did this mod on M54. I added a catch can just to be sure. I'm confused now. The people doing this mod report no oil consumption. I put about 100 miles on after doing the mod and I've already got about a teaspoon of oil in the catch can. If this mod stops oil usage, why am I seeing oil in the catch can?


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