Jump to content
SAU Community

Milk In My Oil Cap, None In The Sump.

Lukas 33
 Share

Recommended Posts

Lukas 33 Proficient

Lukas 33

Posted
Posted

Hey Guys,

My car has been off the road for a while now while I have been fitting new exhaust etc etc

I fired it up last night and I have white smoke coming out of the exhaust and milky crap under my oil cap.

It isnt coming out straight away but away a tiny bit it starts. It isnt all of the time either, some times it will die down to next to nothing (this is all at idle).

There is no milk in the sump.

Checked the dipstick - no milk.

There is no milkshake in my radiator, only coolant and water.

I have checked the lowest part of my cooler piping, there is no oil (thought it might be the turbo seal).

I have my PCV blocked with my covers vented to a catch can.

My mods list is as follows:

RB25/30

Type A poncams

Wiseco Pistons

Stock Rods

JPC Stainless manifold

PSR 45mm Wastegate

GT35R 0.82

3.5" Turbo back exhaust

Front facing plenum from dahtone racing

Front Mount

Vipec V44 plug in

Techedge 2j1 WO2

Bosch 044 with 3L surge tank

Nismo 740cc Inj

Splitfire Coil Packs

Am using the shittest oil known to man for now, didnt want to put the better oil in until I have sorted the overfueling. 20w - 50 oil.

I have some fully synthetic 10w - 40 oil to go in.

Please help

PLEASE :P

Sitting in the car now with the laptop waiting to go :)

Link to comment
https://www.sau.com.au/forums/topic/319928-milk-in-my-oil-cap-none-in-the-sump/
Share on other sites
GTScotT Grand Master

GTScotT

Posted
Posted

This happened to my last car after a MAJOR thrashing followed by a long time sitting.

Nothing was blown but there was a significant amount of condensation trapped in the motor. I suggest a very good and thorough service before anything else.

Mine was fine after I serviced it and ran it at opp temp and driven for a while.

Dj laBBy Collaborator

Dj laBBy

Posted
Posted

Yep, coz you've sat it for some time, the engine has had some condensation in it, and where does it condense?? the rocker cover so you'll see it in the cap, drive it for a decent run and it should be gone the next time.

Lukas 33 Proficient

Lukas 33

Posted
  • Author
Posted
Yep, coz you've sat it for some time, the engine has had some condensation in it, and where does it condense?? the rocker cover so you'll see it in the cap, drive it for a decent run and it should be gone the next time.

Yeh that is what I am thinking. I pulled the catch can off, and have a small amount of hot water right could just near the 90 degree bend but none in the catch can.

I just checked the oil cap again, there was hardly anything milky compared to last time, I was quite impressed.

I have taken all of the catch can lines and everything off and think I will see how it goes with them off, will help get rid of it a little quicker I guess.

What do call a "good service"?

The car was not trashed in the slightest before it started to sit, it was babied and then just sat.

Did a compression test. Results were between 120 and 130 for all of the cylinders, so no drastic drops. I am not sure how accurate the gauge is, but surely it cant be out 60 psi :wub:

slippylotion Mentor

slippylotion

Posted
Posted

Yeah its just condensation. Drop the oil and change the filter and take for a good run . Some cars during winter that dont get a long enough run can do this as the oil doesnt get hot enough to burn the water/condensation out of the oil.

Lukas 33 Proficient

Lukas 33

Posted
  • Author
Posted

Cheers thanks guys.

The car was run for over two hours today and there is not a sign of milk under the cap any more :P

Nice new fresh oil and some time without the catch can lines on and there is no milk at all :)

Thanks again.

Ultimategtr Proficient

Ultimategtr

Posted
Posted

Similar thing happened to me while my car was off the road for a month.. Except the oil turned milky/caramel. Turns out it was condensation/rust in the motor. I bought 2 sets of oil/filters and changed them after around 5 min of idling, then put some Elf racing oil and its been sweet ever since.

Do a compression/leakdown test to be sure if you like tho.

tridentt150v Grand Master

tridentt150v

Posted
Posted

you should see the inside of a motor that has only done short in town driving......it is full of condensation and sludge in all the corners and nooks and cranny's. Some of the sludge is like black putty. All vehicles need a good long drive for a few hours every few months or so.

Why do you think that semi trailers get big mileage [in millions of km] out of their Mack's/Kenworths etc, because they do haul miles not stop and start stuff

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Duncan
      S1 rb25/s14 starting problem

      By Duncan · Posted

      Depending on how long the car sat it is very possible for injectors to be stuck open or closed, I'd get them cleaned and flow tested. Other than that, obviously when the loom changes and the car doesn't start any more....the loom is suspect so some tracing / comparing may be required
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Harness is for a s1 Rb25det, and it is engine and lower harness.  the old harness had broken off plugs and was in very rough condition/exposed wires and splices etc. it is not able to be put back on the car, I could visually inspect to see if they had rewired any pins on the ecu plug. The fuel pump definitly isn’t turning off it’s an external pump and very loud you can hear it. Will look at the other harness tonight, am also going to pull the fuel rail and watch the injectors spray, will update here with what I find. Pretty sure at this point it has to be something to do with injectors because car will fire up on starting fluid and cas is clicking the Injectors. Fuel pressure is steady 43psi 
    • Waders360
      M35 Brake caliper replacement

      By Waders360 · Posted

      Sorry. Front brake calipers
    • MBS206
      S1 rb25/s14 starting problem

      By MBS206 · Posted

      Check the injectors flow evenly, and are actually flowing what you and the ECU think they should be flowing. If it's starting up on starter fluid, you have a fuel issue. Is it possible under cranking your fuel pump is turning off?   The harness you replaced, is that the whole engine harness? Do yourself a test, and drop the old harness on and plug it into the Z32 ECU. It's possible they've wired things different. From memory S1 to S2 is different in RB25 and you may have a wrong loom
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      I haven’t pulled the injectors to watch them spray yet but they are clicking from the cas and all of the spark plugs are wet with fuel. I’ve thought the cylinders were being flooded from the beginning and was hoping fuel pressure would fix it. Tonight I am going to pull the rail and watch the injectors spray. Don’t know how to test/diagnose if the plugs are firing in correct sequence but that should be a timing thing and as far as timing goes my car still has the half moon for the cas can only install it 1 way. And my mechanical timing is 100% correct I posted photos above. Confirmed with the balancer on and off. 
×
×
  • Create New...