Thread: Rod knock on 3rd engine in less than 2 months?

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  1. #1 Rod knock on 3rd engine in less than 2 months? 
    RideWithPride
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    Default 07-14-2012
    moderated
    Last edited by RideWithPride; 07-14-2012 at 11:34 PM.
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  2. #2 Re: Rod knock on 3rd engine in less than 2 months? 
    matt5112
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    Default 07-14-2012
    Should have bought a used engine?

    So do you have a question or should I move this into the rant section?
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  3. #3 Re: Rod knock on 3rd engine in less than 2 months? 
    Tuner-Extraordinaire
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    Default 07-14-2012
    It's a GP.
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.
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  4. #4 Re: Rod knock on 3rd engine in less than 2 months? 
    RideWithPride
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    Default 07-14-2012
    Quote Originally Posted by matt5112 View Post
    Should have bought a used engine?

    So do you have a question or should I move this into the rant section?
    ? rebuilt is supposed to be a step up why is it failing me what is so rigged on this car that it keeps killing my engine this car is all i have
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  5. #5 Re: Rod knock on 3rd engine in less than 2 months? 
    GTPSHAWTY
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    Default 07-14-2012
    did ya oil smell like gas, did ya have water mixing, did you prime the oil pump, was the bearings over torqued, was the bearings good from the beginning? why i ask because ive been thru this over the course of the past three months.. and finally up and running
    CTRACER: YOU SHUT YOUR MOUTH WHEN YOUR TALKING TO ME
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  6. #6 Re: Rod knock on 3rd engine in less than 2 months? 
    matt5112
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    Default 07-14-2012
    Quote Originally Posted by RideWithPride View Post
    ? rebuilt is supposed to be a step up why is it failing me what is so rigged on this car that it keeps killing my engine this car is all i have
    No one rebuilds them properly and they fail just like yours have.
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  7. #7 Re: Rod knock on 3rd engine in less than 2 months? 
    Slick2500
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    Default 07-14-2012
    Sounds to me like whoever did those rebuilds didn't know wtf they were doing.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
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  8. #8 Re: Rod knock on 3rd engine in less than 2 months? 
    Tuner-Extraordinaire
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    Default 07-14-2012
    Quote Originally Posted by RideWithPride View Post
    ? rebuilt is supposed to be a step up why is it failing me what is so rigged on this car that it keeps killing my engine this car is all i have
    Rebuilt aren't the best option for 3800's
    Whine with your Cheese?
    Stock+Self Tuned. Going for low 14's everyday.
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  9. #9 Re: Rod knock on 3rd engine in less than 2 months? 
    Slick2500
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    Default 07-14-2012
    Well there's your problem.
    2003 Redfire Metallic Chevy Tahoe Z71 - Airaid Modular Intake Tube, Flowmaster Exhaust.
    Quote Originally Posted by The Sunfire Guy
    Superchargers take away horsepower
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  10. #10 Re: Rod knock on 3rd engine in less than 2 months? 
    GTPSHAWTY
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    Default 07-14-2012
    i "rebuilt" one and its holding... so im guessing we took our time and done it right..
    CTRACER: YOU SHUT YOUR MOUTH WHEN YOUR TALKING TO ME
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  11. #11 Re: Rod knock on 3rd engine in less than 2 months? 
    16MustangVet
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    Default 07-14-2012
    It may sound stupid but is your belt wrapped around the front or the back side of the water pump pulley. It should wrap around the front. YES it is possible to put it on with the right belt and everything work properly but the water pump will spin backwards and basically cavitate the coolant and it wont flow properly, plus the thermostat will act like a damn and make things worse when its flowing backwards. Just a thought I have heard of this before. Repeat engine grenades sounds like installed error.
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  12. #12 Re: Rod knock on 3rd engine in less than 2 months? 
    siLversLeigh
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    Default 07-14-2012
    check your oil
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  13. #13 Re: Rod knock on 3rd engine in less than 2 months? 
    16MustangVet
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    Default 07-14-2012
    ^^^ if they dont CHANGE oil a few times when putting a rebuilt engine in a few times they shouldnt be around wrenches! Also from what ive heard engines should be ran with high zinc oil when rebuild the 1st few weeks.
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  14. #14 Re: Rod knock on 3rd engine in less than 2 months? 
    GTPSHAWTY
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    Default 07-14-2012
    basically 5w 30 is used as break in oil...
    CTRACER: YOU SHUT YOUR MOUTH WHEN YOUR TALKING TO ME
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  15. #15 Re: Rod knock on 3rd engine in less than 2 months? 
    matt5112
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    Default 07-14-2012
    Quote Originally Posted by 98GrandPrixIraqVet View Post
    ^^^ if they dont CHANGE oil a few times when putting a rebuilt engine in a few times they shouldnt be around wrenches! Also from what ive heard engines should be ran with high zinc oil when rebuild the 1st few weeks.
    That was because engines used flat tappet cams.
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