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Update Blwen Engine 700 1989

posted by  VolvoSteel on  Thu Apr 29 20:23 CST 2004
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last visit: Sun Mar 23 21:28 CST 2014
[RELATED]

K Guys i have the car in my driveway now, Its an 89, 760 Turbo, No visiable damage, hell the car even starts and run's like shit but it actually will stay running by itself, act's like it's missing on 1-2 cyl's. Im going to try to pull the head this sunday and get a look in there, thanks for the great advice Aye Roll, i will be looking for a melted piston, if i see none and spot a blown gasket im going to replace the gasket and give it a try and see if it will run and drive fine if not ill be off for a new head, well ill add the cost's up, if its cheaper for the head, bolts and gasket set's ill do that if more then ill get the used engine from a yard somewhere.








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    Update Blwen Engine 700 1989

    uid 55's pic
    posted by  john sargent on  Fri Apr 30 05:07 CST 2004
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    last visit: Wed Oct 22 09:07 CST 2014
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    A melted piston will have lots of blow by, and there will be lots of vapor spewing out of the oil fill opening (with the oil fill cap off, of course)when the engine is running. A melted piston looks like this from above,


    When the piston is remove, it looks like this,


    A used engine is far cheaper than repairing the damaged one.

    --
    john








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      Update Blwen Engine 700 1989

      posted by  fborcher on  Fri Apr 30 05:58 CST 2004
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      last visit: Fri Feb 24 13:25 CST 2012
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      Great Photos. What did that cylinder look like? I can't imagine it was salvageable.








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        Update Blwen Engine 700 1989

        uid 55's pic
        posted by  john sargent on  Fri Apr 30 09:02 CST 2004
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        last visit: Wed Oct 22 09:07 CST 2014
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        The only way to salvge that cylinder would be to bore and sleeve it. I bought an excellent used K block B230FT (less turbo) for $125 instead.
        --
        john








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          Update Blwen Engine 700 1989

          posted by  VolvoSteel on  Fri Apr 30 12:45 CST 2004
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          last visit: Sun Mar 23 21:28 CST 2014
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          I am hopeing to have the head off by Sunday morning so i know what exactly im dealing with, if the pistion is shot ill just go out and get a used engine from the J yard and throw it in with new seal's and the such.








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    Update Blwen Engine 700 1989

    posted by  mudduck on  Thu Apr 29 23:06 CST 2004
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    congrats...I have a '90 760 and love it...It impossible to say anything for sure from this and previous posts but...It would not suprise me at all...and you would certianly not be the first to get away with "just a head gasket" these are unbeliveably tough little engines.
    Good luck
    Bret
    --
    rust free in west Texas








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      Update Blwen Engine 700 1989

      posted by  someone claiming to be charles on  Fri Apr 30 02:12 CST 2004 [RELATED]

      i did noy read your previous post,but before you pull the head i would suggest you do a compression check on the engine to get an idea at least.good luck anyway.charles.








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        Update Blwen Engine 700 1989

        posted by  VolvoSteel on  Fri Apr 30 06:00 CST 2004
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        last visit: Sun Mar 23 21:28 CST 2014
        [RELATED]

        Damn! thats na good idea, cant believe i didnt even think about it, i actually have a testing device i bought last year i can use, i will do that, i assume wherever the pressure isnt is where the gasket is most likley gone or piston anyways.







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