Oil blowing out dipstick tube and valve cover?!? | Ford Escort Owners Association (FEOA)

Oil blowing out dipstick tube and valve cover?!?

Discussion in '2nd Gen 1991-1996 1.9L SOHC' started by Lizzie94, Nov 25, 2016.

  1. Lizzie94

    Lizzie94 FEOA Member

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    Finally got the car running. Took it for a test drive, and after a couple of minutes I put in the clutch to come to a stop and the engine died. It took a couple of tries to restart but ran okay once it smoothed out. Got it back to the shop and found that oil and gasses were blowing out of the dipstick tube and out of the PCV inlet on the valve cover. The inlet hose was almost full of oil. What in the world could be going on here? It wasn't doing this before I took the engine apart. I checked the PCV valve and lines and all are clear. All were replaced within the last month. What could possibly have happened?!? I'm getting EXTREMELY frustrated with this car.
  2. jay92gt

    jay92gt FEOA Member

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    Do a leak down that will answer the question


    Sent from my iPhone using Tapatalk
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  3. Pizzaman5000

    Pizzaman5000 FEOA Donator

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    To give the engine the benefit of the doubt, if the spark timing is too advanced or if there is less egr than expected, that can pop the dipstick out.

    What brand of pcv valve are you running? If it's not Ford, motorcraft, or Napa brand, you're in for lots of headaches. Sucking up tons of oil would be more than I expect, but I'd bet it wouldn't put it past a bad pcv brand. All of the good ones flow less air than the bad ones.

    An off brand pcv valve might as well be a huge vacuum leak.

    A leak down test is probably still in order.
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  4. Lizzie94

    Lizzie94 FEOA Member

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    I'm running a Microgard (O'Reilly house brand) valve. I'll try a Motorcraft valve and see what that does. I'm pretty sure the spark advance is correct. Just trying to learn, but how would too little EGR flow cause these problems? I cleaned the valve so it moves freely. What should I check?
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  5. Pizzaman5000

    Pizzaman5000 FEOA Donator

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    When a pcv flows too much air, the engine never runs quite right, if it ever does run right, it's generally still a bit rich in the end.

    Forget the egr for now most likely. But if the dpfe is acting up, it can think there's more egr flow than reality, and exhaudt gases slow the combustion down, and also make the o2's think it's running richer than it is, resulting in poor low rpm power and fuel economy. But egr and timing advance go hand in hand (well, they're supposed to.) If the egr flow isn't there, the timing will be WAAY too advanced, which causes more blowby than usual, and can even cause pinging or knock, although thats rare.
    If you wanna check the egr, clean the dpfe. If it is clean, and the hoses going to and from it are clean (super important), it should perform better, or at least give you an accurate egr code immediately. I used to tweak my egr in pursuit of weird theories, and if the egr was insufficient, or overly lean, my dipstick would always pop out, although it still would pop out occasionally with a healthy stock tune.
  6. Lizzie94

    Lizzie94 FEOA Member

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    All right, my worst fears have been confirmed. Here are the compression and leakdown test results:

    Compression test (dry/wet)

    1: 80/93
    2: 75/83
    3: 105/112
    4: 155/172

    Leakdown test

    1: 71% (94/27)
    2: 73% (94/25)
    3: 64% (94/34)
    4: 32% (94/64)

    Definitely redoing the bottom end completely over. It all clicked in my head as I concluded the tests: the reason oil wasn't blowing out anywhere else before I replaced the head was because the extreme blowby pressure had pushed the cam seal out of the head and was blowing all the oil out and around it. Now with the cam seal replaced, the oil has to find other paths; in other words, the dipstick tube and the PCV inlet.

    These were definitely not the conclusions I wanted to come to, but it at least feels good to know what exactly is wrong and what needs to be done. The only real problem now is money. Time shouldn't be an issue, as I will likely be able to do the rebuild over the few weeks between semesters coming up.
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  7. Itchigo

    Itchigo FEOA Member

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    I had an Izusu Pup that only did this in -10 or colder temps. Starting and running cold in -10 or colder it would blow the dipstick out, and I'd find it laying on the frame. Above -10, no problem of any kind. I drove it for several years after this with no issues or oil consumption.
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  8. zzyzzx

    zzyzzx FEOA Member

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  9. Lizzie94

    Lizzie94 FEOA Member

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  10. JOEG5982

    JOEG5982 FEOA Member

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    It is simply wore out. This is classic blow-by caused principally by poor ring seating. (worn or ovaled).

    Rebuild in order.
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  11. twisted95

    twisted95 FEOA Donator

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    last time i had oil blowing out of my tip stick i had a blown heads gaskets on a oil passage compression was filling up oil Area after 20min ride at 60mph i lose 2 quarts of oil with 205-50-15 f- series 5 speed 60 mph 2800 rpms
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