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Diesel 6-71

Discussion in 'Engines' started by Milka, May 7, 2020.

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  1. Capt Ralph

    Capt Ralph Senior Member

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    Not that lever. This lever does not load & lock.
    Your thinking of the blower shut down flap that this engine dies not have.
  2. rtrafford

    rtrafford Senior Member

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    Yeah, that's what I was seeing there...

    IMG_3645.jpeg
  3. boatpoor

    boatpoor Active Member

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    If you're going to start a Detroit that hasn't been run in a few years and doesn't have an e-stop make sure you have some means of blocking the air supply if it starts up with the rack stuck wide open.
  4. Capt Ralph

    Capt Ralph Senior Member

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    There ya go, Sisters to what our Bertie has, 12V71TIs.
    Don't get much better that that.
    71s rule..
  5. Capt Ralph

    Capt Ralph Senior Member

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    After any work, I'm down there with the engine at start ups.
    I usually have a good vice grip on that governor shut down lever.
    And, as you mention, some way to shut off the air to the blower. Not a towel or cardboard, 1/4 min plywood.

    On this, I'd probably want the valve cover off to check the rack and ensure no exhaust valves were stuck down.
    While your there, it's easy to crack open the last injectors fuel in line and help prime the injectors. May help save the starter and/or battery.

    Have some fresh CF-2, 30W and Marvel Mystery oil ready also.
  6. rtrafford

    rtrafford Senior Member

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    No 3 in 1 oil for the Fetzer?
  7. Capt Ralph

    Capt Ralph Senior Member

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    30W for the clutch and engine.
    MMO for the engine and clutch. Also fuel injectors, exhaust valves and rings (added at the fuel filters).
    And yes, 3in1 oil for the Fetzer/gizmo when applicable.
  8. Capt Fred

    Capt Fred Senior Member

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    CR: is MMO better for the injectors than ATF?
  9. Capt Ralph

    Capt Ralph Senior Member

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    On an old thread this question came up. Not sure how I answered then but I'll try my thoughts here.
    My diesel mentor advised me to pour a bottle into a Racor fuel filter to help out on a poor running 671 that had sat up a while. Much later, I think he meant a little bottle.
    The smoke blocked the sun for several minutes. I remember taking turns with another guy, fire extinguisher in hand standing over the running engine while I walked up the dock out of the smoke, told others it was o k (no fire) and went back to relive the other guy on fire watch so he could go get some air.
    When the smoke cleared, that engine settled down and purred like a kitten.

    Old Detroit injectors are a beast to them selves. Rotating barrel valve, mini rack, mini filter, plunger, sleeve barrel and patterned tip.
    One lil spec of crud can mess up these and more, just a gizmo that fits in the palm of most hands.
    MMO also gets down to the piston rings faster also (IMO).

    My DDC mentor (Henery) told me that he had already tried atf, and all other snake oils and he preferred MMO. That was over 30 years ago.
    I have tried nothing else.
  10. Capt Fred

    Capt Fred Senior Member

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    Thanks for your input and your humor.
  11. Milka

    Milka New Member

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    Love my zombie but she may be headed to a junk yard soon.

    Cant find anyone to pull her out.
    Cant find anyone to fix her roof.
    Cant find anyone to fix her engine.
    Cant find anyone to rewire her.
    Cant find anyone to move 1 wall to create a porch.
    Cant find anyone to fix the floor.

    I see so much potential in her but the guy that just left saying if I got her for free I paid to much was a punch in the gut.
  12. rtrafford

    rtrafford Senior Member

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    There are plenty of naysayers out there, even in this forum, that quickly obtain snarky perspectives they see as "no-risk" despite the non-profit aspect of boating from virtually any avenue of participation outside of the employed vendor. If you see the dream and the path, stand by your vision. See if you can get her to fire up and function amidst the very basics. Then reassess.

    Love your spirit. Can attest to and appreciate the dreams. Maybe too early to throw in the towel?
  13. Milka

    Milka New Member

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    Thanks .. not giving up yet but that roof floor and engine are make it or break it. No idea who else to call
  14. rtrafford

    rtrafford Senior Member

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    So, the roof is made of? and leaks how? Lots of solutions out there.

    The engine, yeah, that might be too far gone, but it also might be worse cosmetically than mechanically. Wouldn't really know for sure without getting a qualified diesel man in there to walk it all out. Heck, mine were beautiful upon purchase, but within 30 days I still had the air boxes all off and remanned, the turbos replaced, new cables to the controls, and all hoses, clamps, and pencil zincs updated. Then I ran her lightly for 20 hours and went through the oil, filters, and coolant system flush, etc. Yours looks rough but might clean up sweetly. Never know. I assume you've spun the shaft and crankshaft manually?
  15. chesapeake46

    chesapeake46 Senior Member

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    I googled Detroit Diesel repairs Norfolk Va
    Lots of web site - not marine particularly
    There must be a Detroit shop around there somewhere !
  16. rtrafford

    rtrafford Senior Member

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    A truck mechanic can get it through Phase 1 of the due diligence.
  17. cleanslate

    cleanslate Senior Member

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    Capt rtrafford. Beautiful motors and engine room. Looks real nice.
    But,
    I'm not sure if this is a current photo, I noticed that walker air sep filter possibly needs attention . Please don't take this the wrong way. I just noticed it.
  18. rtrafford

    rtrafford Senior Member

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    Thank you. Yes, old photo taken as the airbuses were being remounted. Walker took some abuse during the effort, but all were changed when we then swapped out the 4 turbos. She's come a long way, and I'm quite proud of the outcome. Spent perhaps a decade with pure neglect from a disinterested owner/seller.
  19. Oscarvan

    Oscarvan Senior Member

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    Are you sure that was a good idea?
  20. Milka

    Milka New Member

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    I used to be a deck hand on the Mississippi River, Ohio River, Illinois River, Escambia River and the gulf of Mexico... i can handle lines and a needle gun very well and I missed the water