Need some automotive advice from the experts
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Need some automotive advice from the experts

  1. #1
    Senior Member Delemorte's Avatar
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    Default Need some automotive advice from the experts

    Well you all know more stuff about motors than i could ever hope to know.. So i need some quick feedback on possible causes of an issue..this is my buddies car and he keeps asking me for advice.

    I have told him to bring the car to me so i could pull the plugs and run a comp test but he still has not brought it by...

    Car runs like hell but i think its cause he does not take care of it. The issue at hand is it blows smoke...

    Its whitish , almost blue, and only happens when he first cranks up or when he excelerates. its not alot but certainly enough i dont want to ride behind him when it happens.. Im thinking head gasket but i have seen a blown head gasket and that is like a dang smoke screen and this is not that bad.

    What are some other possible causes of light smoke when hitting the gas or starting.


    Thanks!!
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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  3. #2
    Spiral out MikeF's Avatar
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    Usually oil past the valve guide seals(startup) or piston rings.

    Is the cooling system loosing coolant?....loosing oil?

  4. #3
    steelcomp was here
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    Quote Originally Posted by MikeF View Post
    Usually oil past the valve guide seals(startup) or piston rings.

    Is the cooling system loosing coolant?....loosing oil?
    Smoke on start up is typically guides or stem seals. Smoke on deceleration is typiccally the same. Smoke under acceleration is usually rings, but can happen under decel as well. Look for excessive blow by..(smoke through the valve covers/breathers) that's a sign of rings. Oil on top of the carb or in the air filter/intake tubes and in the throttle body is rings.
    Oil all over the engine, dripping from the front seal, or all over the ground, it's a Chevy.
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    Senior Member Delemorte's Avatar
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    Quote Originally Posted by steelcomp View Post
    .
    Oil all over the engine, dripping from the front seal, or all over the ground, it's a Chevy.

    Worse.. Its a Honda...


    thsanks for the advice. hopefully he will bring it over so we can look over the basics.
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    Blown, OHBA Member Wild Hair's Avatar
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    Oil all over the engine, dripping from the front seal, or all over the ground, it's a Chevy. straining its guts out to drag a dodge to the dump
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    Back in the early 70's, I had a 64 GTO that did the same thing. I was told it was the Quaker State oil I had in it. Ya sure. So on the next oil change I used Valvoline. No more smoke. Who would have thought. Been a Valvoline fan since.

    Tim

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    E-7 Sheepdog (ret) SmokinLowriderSS's Avatar
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    Quote Originally Posted by Wild Hair View Post
    Oil all over the engine, dripping from the front seal, or all over the ground, it's a Chevy. straining its guts out to drag a dodge to the dump
    That's why you use a Ford to drag the Dodge.

    Park both at the dump and drive away with the friend in the Chevy who was following you.
    Last edited by SmokinLowriderSS; 09-09-2009 at 07:18 PM. Reason: smiley's accidentally left off
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    Fresno Calif Dhondagod's Avatar
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    Quote Originally Posted by Delemorte View Post
    Worse.. Its a Honda...


    thsanks for the advice. hopefully he will bring it over so we can look over the basics.

    If he's racing it cold he's killed the bottom end. (pistons, pinched the rings, maybe scored the cylinder walls)

    Pistons expand faster than the block around them and the pistons try to "stick" in the cylinder. Usually "smears" the ring lands and pinches the rings causing loss of compression and locks the oil ring in its groove so it cant scrape the oil from the cylinder walls.

    Warm it up, drive it up to 6k or so and let it decel down to about 2k in 3rd gear. Nice long decel, then crack the throttle to a light cruise and watch the smoke come out of the back. Ive seen some that look like they caught fire...

    Also, if he dosent wash the car much the rear bumper will be covered in a thin film of oil. (Makes the car always dirty in back)

    How much oil is the thing using?


    Chris

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    mo balls than $cents$ IMPATIENT 1's Avatar
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    i'm gonna step away from the crowd here and say either a fuel pressure regulator diapram ruptured or the coolant temp sensor for the ecm took a shit(don't assume its ok by the gauge, that goes by a different sender )

    also, if you're buddy think's its a rice racer and put on a big ole oil gauge filter on the motor, check and see if the maf sensor is covered in the air filter oil, see that shit all the time thanx to autozone

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    Senior Member s2k1's Avatar
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    What kind of Honda?
    Chris @ Benchmark Performance

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    Senior Member Delemorte's Avatar
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    Quote Originally Posted by s2k1 View Post
    What kind of Honda?

    Minivan :-) No racing or anything..


    We went thru it. Repaced all the plugs (the diodes where all but burnt away) and valve cover gaskets (Plugs were actaully sitting in a inch or 2 of oil) and changed oil PCV, cap, rotor etc and used some heavier oil (was using autozone brand 5w 10). Moved up to 10w 30. Im not sure i would use autozone brand oil in my lawn mower but it aint my car. So far it stopped smoking. 260,000 miles original engine and tranny.
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

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    Senior Member Jim W's Avatar
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    If you switch to a synthetic oil, the smoke will go away.
    It will still be using the oil but the synthetic doesn't burn and produce white smoke.

    Little trick I learned from a used car wholesaler........

    Jim
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    Senior Member Delemorte's Avatar
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    Quote Originally Posted by Jim W View Post
    Little trick I learned from a used car wholesaler........

    Jim

    You bastard!!
    Quote Originally Posted by jetboatperformance View Post
    the ensueing fire would likely be extinguished by the sinking however

  16. #14
    Senior Member Jim W's Avatar
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    Quote Originally Posted by Delemorte View Post
    You bastard!!
    Hey now....... I said I learned it, not that I have done it!!!!!!! LOL

    Jim
    GN7
    Do you guys ever read anything I post, or just go straight for the throat?


    Got it wet on 6/15/10-------->finally......



    E-85 I'm saving the world--->8 thumps at a time

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