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I think its time to part with the car

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    I think its time to part with the car

    I have been noticing a very slightly rough idle lately, actually for a while. I thought it was the plug wires, so I ordered some and went to change them. While the old ones were off I decided to do a compression test. Good ol cylinder four is at 60psi. I squirted some oil in the cylinder and it jumps up to 170~. I am wondering what the problem is. I thought rings pretty much wore evenly, all the other cylinders were ~140psi. I just changed the HG about 8k ago. I am thinking maybe a bad valve seat is the problem. I couldn't believe it. The car runs so strong. I raced a friends 98 Prelude VTec and beat him by a car length so I was surprised when I found this out. I figured it would run so much shittier with one cylinder compressing so poorly.

    Anyway, I am in college, and I don't really want to deal with the car anymore. I love e30s, but I think I will wait until I graduate so I can enjoy modding one more. I guess I'll be driving my boring ass Nissan until I graduate. Start making some offers on the e30 I guess.:(
    sigpic

    #2
    If you put oil in it and it jumps up THAT high... its the rings in that cylinder. That sucks though. My cyl 3 is 75psi and 2/4 are 95psi and others are 120/130.

    Will
    RIP e30 (brilliantrot '91 325i) 11/17/06 Byebye: 8/21/07
    Welcome e30 (brilliantrot '90 325is) 12/23/06
    DaveCN = Old Man
    My signature picture was taken by ME! Not by anyone else!



    Originally posted by george graves
    If people keep quoting me in their sig, I'm going to burn this motherfucker down.

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      #3
      If you're not up to rebuilding it then I would just drop another M20 in it and call it day. You could probably find a good M20 for the price of what it would cost to have a shop install a new head gasket.

      With the right tools & help I bet you could do it in 8-10 hours.

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        #4
        Depending on the condition of the rest of the car youll probably be better off selling it. Anyone here whos in college can attest that trying to rebuild a beater is not feasible on a college budget. Spend your money on having a good time while you can, you can always buy a project e30 later on down the road.
        Back to my roots

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          #5
          I honestly don't think I can sell it. I have had this thing for nearly four years.

          If I knew exactly what the problem was then it is no problem for me to fix it. I don't want to go in and not fix the problem though.

          Could a leakdown test pinpoint the problem? A friend has a guage set that I could use, but I don't know how to do the test.
          sigpic

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            #6
            Originally posted by trashcop 80s 80s
            I honestly don't think I can sell it. I have had this thing for nearly four years.

            If I knew exactly what the problem was then it is no problem for me to fix it. I don't want to go in and not fix the problem though.

            Could a leakdown test pinpoint the problem? A friend has a guage set that I could use, but I don't know how to do the test.
            If you are getting blow-by in the piston rings you should see burning oil. If a bad valve seat, the spark plugs should tell the story. If its bad rings and you're strapped, just drive it. It'll foul plugs quickly but will run a long time. Either way you'll have to rebuild, so be a trooper and drive it till you hear metal knocking or it explodes.

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              #7
              Or sell it to me...

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