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8v71 questions?

Discussion in 'Chris Craft Roamer Yacht' started by gibson36, Nov 3, 2011.

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  1. Capt J

    Capt J Senior Member

    Joined:
    Jul 11, 2005
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    13,038
    Location:
    Fort Lauderdale
    You could also take the valve covers off and make sure the top end doesn't have a lot of surface rust on it. Check turbo's and make sure they spin freely and the impellors aren't touching the housings. Check/drain fuel, change fuel filters, oil and filters, gear oil and filter (if equipped), to start. I'd run them VERY easy the first 10 hours and alternate RPM's, then possibly change the oil and filter again. Check the rack settings and possibly have the injectors rebuilt or at least checked. Then slowly bring them up in rpm's and see what they do. I've seen DD's that have sat a long time and run fine for years and year, I've seen others that have sat a long time and ran like a raped ape for a few dozen hours until they cracked a ring or dropped a valve.
  2. jhall767

    jhall767 Senior Member

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    Jan 14, 2010
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    Location:
    Middle River MD
    Don't wait until spring. If you don't have the time hire an EXPERIENCED DD mechanic to come out for a couple of hours and check everything. And then properly place the engine into long term storage. With the proper rust inhibitors no further damage will occur. Without them... At a minimum cap off the intake and exhaust so no air can flow through the engines.
  3. Capt J

    Capt J Senior Member

    Joined:
    Jul 11, 2005
    Messages:
    13,038
    Location:
    Fort Lauderdale
    I agree wholeheartedly, get the engines worked on NOW.