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    Bad engine coupler or spun prop hub?

    5.0L Mercruiser 2006 Alpha gen 2 drive. Recently replaced IAC. Boat had broken bow line at a dock and was blown into the dock repeatedly with the drive hitting the dock. Did the drive get knocked out of alignment? We were able to get home fine after that incident. It was about 30 minutes...
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    5.0L MPI low rpm at WOT

    I’ve got a 2006 Crownline classic with a 5.0 MPI and an alpha drive. Toward the end of last season we had figured out that the boat was running on 7 cylinders. One cylinder had no compression. We replaced one head and had a valve job done and put it back together. I had expected to be closer...
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    Lubriplate SPO 255 and Loctite 5900

    As I am getting my ducks in a row to install the heads and intake on a 2006 5.0 MPI I had a couple questions. My first question is about the lubriplate called out on page 3A-26 in the service manual. Is there an alternate or is this the only recommended lube for the pushrods and rocker arm...
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    Fuel Rail assembly 5.0 MPI OW376228

    I was wondering if someone could help me get the fuel rails back in place. I had them out of place to get the injectors cleaned. I ended up with 2 extra nuts which isn’t right. One back of injectors is sitting deeper into the intake than the other. I tried piecing it together using the IPB...
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