Question about 1990 Honda Civic

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1990 Honda civic Burning a quart of oil every 300 miles??????

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  • Matt Cobb Sep 08, 2010

    I have had a compression test and is holding 140 in all four cylinders. I bought it with the number 3 cylinder having burned valves. I had a shop replace them they said other 3 cylinders looked fine. I left there with it running on all four but smoking horribly. I went back they gave me a breakin period run around cause of new gaskets, n there we sit. Would BG products help or timing belt off and cam retarded cause this? It has no power. Thanks Man

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That's a lot of oil
assuming nothing is leaking and you truly are burning it then you have two typical suspects...
1.) rings
2.) valve guides

compression test and cylinder leak down test will confirm which is bad

either case you are looking at a "rebuild" which is almost impossible to find anyone that will "rebuild" an engine @ 1,000+

or

installing a "rebuilt or remanufactured" engine @ $2,000+

or

you might be able to find someone that will just replace the worn out parts for less than $500
However, how long will it be before the next part fails

or

beleive it or not, if you search hard, you can find imported "USED" engines with less than 30,000 miles for under $1,000... however, you have to install them yourself or pay someone $750+ to install

Posted on Sep 08, 2010

  • Sean Reisdorf
    Sean Reisdorf Sep 09, 2010

    there is no way I would accept 140pis on a 1990 Honda
    its high for a 20 year old vehicle no matter how "well" it was built

    put it to you this way...
    lets way you have a cylinder with slightly low compression, say 100psi and then you squirt a little oil in the cylinder...what happens to the compression?.... it raises.... why?....because the oil helps seal the cylinder walls increasing compression

    therefore I am still assuming you have leaking valve guides and the only way you are going to find it at this point is to "assume"


    Sean

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