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Dual Racor fuel filters for 900 Mans

Discussion in 'Technical Discussion' started by CSkipR, Sep 16, 2012.

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  1. CSkipR, Sep 14, 2014
    #21
    CSkipR

    CSkipR Member

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    Capt J,
    That is what the trans had in them from the commission so I didn't want to change. Since I only put on 200 hrs or less per year we change oil every 2 years maybe a little less.
    Skip
  2. Capt J, Sep 14, 2014
    #22
    Capt J

    Capt J Senior Member

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    It shouldn't have a multigrade. I don't know of any transmission where a multi-grade is recommended? If they're ZF or Twin Disc they're supposed to have straight 40W, or straight 30W in cold climates.
  3. CSkipR, Sep 14, 2014
    #23
    CSkipR

    CSkipR Member

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    They are ZF. Maybe the next change will go to 40w. Will that cause any issues changing weight? Should I use synthetic or regular Shell Rotella 40w?
  4. Capt Ralph, Sep 14, 2014
    #24
    Capt Ralph

    Capt Ralph Senior Member

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    You use Synthetic Mobile in your TD 5114s? On a couple of my boats, Were using the Same Delvac in the Gen-set and doing very well. I thought the TD clutches spec'd a straight weight.
    Before we get carried aweigh, How long have you been using that oil? Do you have pressure gauges and what do they run at? any problems at idle? Temp issues? I've always thought a synthetic oil would work better but nobody had a straight weight. Do you use trolling valves?
    I've been dreaming of using a synthetic clutch oil, I just have no case histories to go with. Some of us old dawgs want to learn new tricks.
    ,rc

    Oh wait,, ZFs? Heck, they use ATF up to 150 hp. Maybe they can go a multi weight.
  5. CSkipR, Sep 14, 2014
    #25
    CSkipR

    CSkipR Member

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    RC,
    Yes I have been using Delvac 5-40w in the ZF350A since commission (06).
    Skip
  6. Capt Ralph, Sep 14, 2014
    #26
    Capt Ralph

    Capt Ralph Senior Member

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    You're to fast, I updated my post.
    Any issues using trolling valves?
  7. CSkipR, Sep 14, 2014
    #27
    CSkipR

    CSkipR Member

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    .

    Knock on wood never an issue and use them regularly. What would the issue most likely be?
  8. Capt Ralph, Sep 14, 2014
    #28
    Capt Ralph

    Capt Ralph Senior Member

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    Who has the factory ZF 350A manual out there. I can not find one. Need oil and second choice specs. I'l send a note to Texas.
    ,rc
  9. Capt J, Sep 15, 2014
    #29
    Capt J

    Capt J Senior Member

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    I would call ZF North America and ask them. I was told not to use a multigrade in their gears and to use straight 40W.
  10. P46-Curaçao, Sep 15, 2014
    #30
    P46-Curaçao

    P46-Curaçao Senior Member

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  11. Pascal, Sep 15, 2014
    #31
    Pascal

    Pascal Senior Member

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    actually, multigrade is ok . I pulled the manual for our BW190s (on 3412Es) and then looked up the updated list on line

    http://www.zf.com/media/media/en/document/lubricantslists/TE-ML_04.pdf

    As you can see every tranny that uses regular oil (not ATF) either 30 or 40 can use either straight or multi. Only a handful require straight 50 only
  12. Capt Ralph, Sep 15, 2014
    #32
    Capt Ralph

    Capt Ralph Senior Member

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  13. Capt Ralph, Sep 16, 2014
    #33
    Capt Ralph

    Capt Ralph Senior Member

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    zf oil type change

    It's a tough decision to make skip. Keep what oil you're using and that seems to work. Or change years later to what the book seems to state. If it's still crystal clear as it was new, You may want to drag your feet in changing it.

    As Skippy J said also, call ZF. Tell them what ya got, how well it's working and should you change.

    I am a big fan of synthetic oils, Just can't find the right stuff for my 36 year old DDs & TDs.
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