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HT4100 4.1, 4.5, 4.9 Discussion, Engine Swap Process in Cadillac Engine Technical Discussion; As of tonight he has the new engine in and needs to finish connecting everything. I'm hoping I get her ...
  1. #46
    Cristofo's Avatar
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    Re: Engine Swap Process

    As of tonight he has the new engine in and needs to finish connecting everything. I'm hoping I get her back tomorrow...

  2. #47
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    Re: Engine Swap Process

    Where are the pictures?

  3. #48
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    Re: Engine Swap Process

    Here are just some random pics ive taken through the process.

    http://s1094.photobucket.com/albums/i444/cristofo/

    And here are 2 pictures before the engine went.

    lunapic_128311336238172_17.jpg
    lunapic_128304304780579_7.jpg

    I'll be sure to post all my total disassembly process pics when I get the old engine back to my dads warehouse. I plan on disassembling the whole old engine.

  4. #49
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    Re: Engine Swap Process

    Just got a call that he got my car running said it sounded pretty good but had a miss...He started to tap on the injectors and it started to run better with no miss. He's going to swap out the injectors and rail from my old engine to the new used engine.

    Hopefully this corrects the issue and I can be driving me car in not time...

  5. #50
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    Re: Engine Swap Process

    Tell him to keep all the working injectors from both engines. You may need one or two in the future. They are known for shorting out and are quite expensive new.

  6. #51
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    Re: Engine Swap Process

    Good thinking! I'm keeping everything so I have a "parts" set. My original engine ran perfect except for the crack that was leaking out coolant, so most if not all parts should be good.

  7. #52
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    Re: Engine Swap Process

    So finally got her back, this can complete this thread. Starting new one...

  8. #53
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    Re: Engine Swap Process

    A new thread? Uh-oh, that's not a good sign!

  9. #54
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    Re: Engine Swap Process

    Quote Originally Posted by Sevillian273 View Post
    A new thread? Uh-oh, that's not a good sign!
    Ha, should I not?

  10. #55
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    Re: Engine Swap Process

    I thought that means it didnt go well!

  11. #56
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    Re: Engine Swap Process

    Quote Originally Posted by Sevillian273 View Post
    I thought that means it didnt go well!
    So far so good

  12. #57
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    Re: Engine Swap Process

    wow i cant believe the luck i have...driving home from my niece's birthday party and I hear a metal tapping sound. This is after I had zero problems, the car was running good. I pull the car over and look under the hood....the tapping was coming from the pulley area so I shined my flashlight down and noticed the water pump pulley had a very slight wobble (F*$K!). I got in my car to get it somewhere safe when the charge light pops on followed by the hi coolant temp light, so I shut the car off immediately. Pop the hood again...Belt's broke, water pump pulley has 1 bolt left and almost hanging off. Got it towed.

    Only thing I can think is that the water pump seized and broke the belt. Are brand new pumps likely to fail after 50miles of use? WTF! I used the coolant supplement (bars powder) and bought Prestone and new hoses. Could the engine have loosened sludge that I couldnt flush with the hose (I flushed this thing plenty of times until the water came out clear everytime). I trust this mechanic he does good work, so did he do something? All I know is I'm not touching the car until I can get him on the phone and since I only have his work number, I will most likely not get him until Monday.

    This sucks, and it sucks bad.

  13. #58
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    Re: Engine Swap Process

    Sounds like your mechanic forgot to torque down the pulley bolts. If the shaft/pump are still intact, but the pulley and it's bolts are loose, that's the only explaination.

  14. #59
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    Re: Engine Swap Process

    The water pump design is horrible, I went through 4 in 3 years

  15. #60
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    Re: Engine Swap Process

    Yeah the mechanic forgot to tork down the water pump pulley bolts. had it happen to me once before it sucks.Replace the bolts and check for leaks and replace the belt. might not be a bad idea to replace the thermostat with a fail safe model. And hey be thankful that the water pump design isint like Mazda nothing like haveing to remove 3 pieces of plastic just to get to it then trying to get to some small bolts that you cant even see.

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