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Gray/blueish/white smoke....

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Old 04-21-2005, 11:37 AM
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Default Gray/blueish/white smoke....

ok I havea 93 Civic DX sedan D15B7 SOHC non-Vtec, block w/ about 180K and head w/ about 90K. at idle there is a slight amount of Gray/blueish/white smoke....If I rev the motor up in rpms it just gets worse. also getting an ok amount off soot on the rear bumper/exhaust tip..
I'm going to do a compression/leak down this coming weekend,but wanted to see what everyone thinks..leaning towards head gasket or rings...
Feedback would be appreciated and thanks for looking...
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Old 04-21-2005, 12:02 PM
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Default Re: Gray/blueish/white smoke....

Is the oil or antifreeze milky looking?
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Old 04-21-2005, 03:38 PM
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Default Re: Gray/blueish/white smoke....

no not the last time that I looked they were...Antifreeze was norm green and oil was dark but because I need to change it....
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Old 04-21-2005, 03:58 PM
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Default Re: Gray/blueish/white smoke....

greyish blue means your burning oil. may be the rings or valve seals....

white means yer burning coolant. But if its blueish smoke, then its probably oil.
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Old 04-21-2005, 05:37 PM
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Default Re: Gray/blueish/white smoke....

I'm thinking rings/valves...
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Old 04-21-2005, 10:03 PM
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Default Re: Gray/blueish/white smoke....

Originally Posted by Whtehnda93DXSdn
I'm thinking rings/valves...
FOR GOD SAKES!!!! Please check the valve seals!! I cant stress that enough. Of all the major prblems, you can replace those without taking the head off and they go bad more often than rings or valves.
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Old 04-21-2005, 11:59 PM
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Default Re: Gray/blueish/white smoke....

thanks for info Neogenesis
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Old 04-22-2005, 06:25 AM
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Default Re: Gray/blueish/white smoke....

if the bottom end has 180k and the head has 90k then you have bad rings. believe it!!!
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Old 04-22-2005, 07:36 AM
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Default Re: Gray/blueish/white smoke....

appreciate it CHAHONDA....
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