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Thread: Probably need new engine--now what

  1. #1

    Probably need new engine--now what

    Greetings fellow Mafia members--so recently I posted regarding a sudden degradation of engine performance. It began right after accelerating to get onto the highway. Firm yes, but not redlined by any means (car is an auto). Cylinder 1 showed no compression, wet or dry. The mechanic believes I bent a valve while accelerating. He's thinking replacing the engine may be a better route than pulling the head and doing a valve job (he cited issues with possibly stripping threads)

    I thought this seemed strange. How would an acceleration randomly bend a valve? Engine has 101,xxx miles on it.

    The mechanic did find traces of "dark dusk" that he said indicated a failing cooling system, and thought that it could have been overheated sometime in the past, weakening something.

    I do have a local friend who has a totaled ZHP with a good engine--102,xxx miles on it and I think he's asking a good price for it.

    My question is this--what would the next best step? I don't have any experience in this area. Is replacing an engine the norm in this situation? Would I get anything for the old engine? Should I sell/part out the car instead?

  2. #2
    Join Date
    Jan 1970
    Location
    Bridgeport, CT
    Posts
    12,981
    Get the used engine.

    And him saying that accelerating caused this is bullshit. Acceleration by itself will not cause engine damage. There must have been a pre-existing condition that lead to this happening. Overheating seems like an unlikely thing to blame - that would be more of a warped head / blown headgasket sort of deal in my mind.
    BP
    2005 330i ZHP / 6MT
    Connecticut Valley Chapter
    Patroon Chapter
    Imolarot / Naturbraun

    It's not the car you drive, it's how you drive it.

  3. #3
    Join Date
    Feb 2014
    Location
    Picton, ON
    Posts
    3,856
    i agree with BP.

    get the used engine - the mileage similarity is destiny.
    peter



    2004 BMW 330i ZHP 6MT | imolarot mit schwarz nappa/leder | 1/21 canadian-spec
    the well-balanced machine.

    2005 BMW 325iT semi-M Sport 5MT | japanrot mit schwarz nappa/kuntsleder | 1/7, canadian-spec
    future 330iT.

    2003 Mitsubishi Montero Limited | silver on black leather with BT, 7 seats and massive rubber
    the tank.

  4. #4
    Join Date
    Feb 2013
    Location
    Austin TX
    Posts
    3,755
    Wow, that's bad news. Did you check with the Indy I recommended ? Buying the used engine is the way to go IMHO.

  5. #5
    Quote Originally Posted by fredo View Post
    Wow, that's bad news. Did you check with the Indy I recommended ? Buying the used engine is the way to go IMHO.
    I did! That's actually where she's at right now. They quoted me $6000 for the valve work it required, if I went down that route. They are somewhat perplexed with the situation, saying that I either "burned or bent" the valve, and according to them this never happens.

    If I went down the new engine route, they quoted me $4000 for the install (if I supplied the engine). Yikes. The engine is out of an '04
    ZHP with 102,xxx miles, and they guy wanted $1500, which I thought sounded pretty sweet. But not the $4000 to install.

    If I can't find a less expensive means of installing the engine, I'm really thinking about selling it as-is. Either way, very disappointing

  6. #6
    Join Date
    Feb 2014
    Location
    Picton, ON
    Posts
    3,856
    Quote Originally Posted by usinjin View Post
    I did! That's actually where she's at right now. They quoted me $6000 for the valve work it required, if I went down that route. They are somewhat perplexed with the situation, saying that I either "burned or bent" the valve, and according to them this never happens.

    If I went down the new engine route, they quoted me $4000 for the install (if I supplied the engine). Yikes. The engine is out of an '04
    ZHP with 102,xxx miles, and they guy wanted $1500, which I thought sounded pretty sweet. But not the $4000 to install.

    If I can't find a less expensive means of installing the engine, I'm really thinking about selling it as-is. Either way, very disappointing
    $4000 for the install?! that's insane. if you were local i'd do it for $750. it's a day of labor, maybe 1.5 days. try to find someone local who can help out - it's not that hard of a job even though it sounds daunting.
    peter



    2004 BMW 330i ZHP 6MT | imolarot mit schwarz nappa/leder | 1/21 canadian-spec
    the well-balanced machine.

    2005 BMW 325iT semi-M Sport 5MT | japanrot mit schwarz nappa/kuntsleder | 1/7, canadian-spec
    future 330iT.

    2003 Mitsubishi Montero Limited | silver on black leather with BT, 7 seats and massive rubber
    the tank.

  7. #7
    Join Date
    Feb 2013
    Location
    Austin TX
    Posts
    3,755
    I know another mechanic, not a BMW one, but I bet he can install the engine for less. I'll send you a PM later.

  8. #8
    Join Date
    Jan 1970
    Location
    Bridgeport, CT
    Posts
    12,981
    Quote Originally Posted by slater View Post
    $4000 for the install?! that's insane. if you were local i'd do it for $750. it's a day of labor, maybe 1.5 days. try to find someone local who can help out - it's not that hard of a job even though it sounds daunting.
    This. Holy crap that is an expensive quote.

    Any shop is going to be in the 4 figures range, but 4k is excessive. I don't think you should be paying any more than $2k to get the engine installed...
    BP
    2005 330i ZHP / 6MT
    Connecticut Valley Chapter
    Patroon Chapter
    Imolarot / Naturbraun

    It's not the car you drive, it's how you drive it.

  9. #9
    Thanks all--really appreciate the advice. I'll definitely ask around for some more reasonable quotes.

  10. #10
    Okay--dropped my car off--going for the replacement motor.

    While most other mechanics were befuddled by how I could have hurt the exhaust valve, the last one was left in no doubt--"poor quality gas". According to him, a combination of "dirty" gas (also 87 octane..) most likely did it in. Under acceleration (kind of low on gas at the time, too--bad, bad, shame on me!), something got somewhat gummed up and hurt it. It's very possible I destroyed it and have no one else to blame.

    Whatever the case--Shell 93 octane V-Power is all that's going in from now on. A friend tried to convince me that 87 octane gas is "just fine"--no more.

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