Checking Transmission Oil | FerrariChat

Checking Transmission Oil

Discussion in '308/328' started by Dr Kananga, Jul 18, 2012.

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  1. Dr Kananga

    Dr Kananga Formula 3

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    #1 Dr Kananga, Jul 18, 2012
    Last edited by a moderator: Sep 7, 2017
  2. Iain

    Iain F1 Rookie

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    Its the second one - the first one is the fill plug for the transfer gear case. In fact you can fill the whole system through there (and many do) because its easier to get to than than the main trans fill pug.

    When you check it the car needs to be level for obvious reasons.

    If you get a lot of oil coming back out of the transmission fill plug when you undo it then it means he shift shaft seals have most likely failed.
     
  3. Dr Kananga

    Dr Kananga Formula 3

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    And, obviously (I think), new copper washer goes on when I pull the plug?
     
  4. Dr Kananga

    Dr Kananga Formula 3

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    And, when draining, do I also open up the bottom of the transfer gear case?
     
  5. fastradio

    fastradio F1 Rookie
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    Yes and the sump plug labeled Cambio.
     
  6. Iain

    Iain F1 Rookie

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    #6 Iain, Jul 18, 2012
    Last edited: Jul 18, 2012
    New washers on the 4 plugs - always undo the fill plugs before you drain the oil (just in case you can't!)

    If you are going to fill it through the transfer case then also leave the main transmission full plug out (but put both drain plugs in obviously!). Basically you need to fill it till the oil level reaches the trans fill plug hole.

    Put 4.5 qts in and leave it with a drip tray under the transmission. It will take 15 minutes plus to find a level & before oil starts coming out the trans fil plug. It takes a long time to work its way through. If no oil is coming out after 15 mins then add a little more and wait again. When oil is coming out then leave it till it pretty much stops and stick the plug in with some copper grease on the threads (in fact put some on the threads of all the drain & fill plugs - it will make life much easier next time!)

    Can't remember the torque values on the plugs but its not much - be careful, its easy to strip threads in those things and a real pain to fix.
     
  7. Dr Kananga

    Dr Kananga Formula 3

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    Thank you friends!
     
  8. Matto

    Matto Formula 3

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    #8 Matto, Jul 18, 2012
    Last edited: Jul 18, 2012
    For what it's worth, I picked up a good old-school flexible galvanized funnel like this from O'Reilly Auto Parts (cheap, but well made...with a filter screen, which is great). I shaped it and planted it right down into the top of the transfer case from the engine bay. It was a very easy fill (Red Line 75W90-NS GL5). I lowered the rear of the car on the jack until it was level. Once oil began to drip from the level-check hole I jacked it back up, placed it back on the stands, sealed everything up and wiped it down.

    http://www.staples.com/Goldenrod-Galvanized-Steel-Metal-Hose-Utility-Flexible-Spout-Funnel-2-qt-Capacity/product_853983?

    Definitely pull all of the drain/level check plugs before draining. My transfer case fill plug did require some careful coaxing with a long breaker ratchet (the QV plugs take Allen bits). Sadly, I don't think that any of my trans plugs had been removed in years (also judging by the black funk that I drained from the gearbox). New copper washers were installed all around. I keep a bag of them on hand in the cabinet.
     
  9. jonesdds

    jonesdds Formula 3

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  10. Dr Kananga

    Dr Kananga Formula 3

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    I have these.
    For some reason I was not totally clear on where to check for "overfill" aka "the bad shift shaft seal".

    Thanks for the intel 'gents.


    Sent from my iPhone
    (which probably means I'm sitting at my car, confused)
     
  11. Matto

    Matto Formula 3

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    I clearly TMI'd you, but I thought that it might be helpful :)
     
  12. Dr Kananga

    Dr Kananga Formula 3

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    If not me, someone...
    Nonetheless, appreciated.


    Sent from my iPhone
    (which probably means I'm sitting at my car, confused)
     
  13. Birdman

    Birdman F1 Veteran

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  14. JohnnyS

    JohnnyS F1 World Champ
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    Not really. A small oil hand pump available at any marine or auto store fits on the oil bottle and you can hand pump in through the side port.
     
  15. Birdman

    Birdman F1 Veteran

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    Yep, to the transmission, not the transfer case.
     
  16. Dr Kananga

    Dr Kananga Formula 3

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    Ask you how you know?


    Sent from my iPhone
    (which probably means I'm sitting at my car, confused)
     
  17. etip

    etip Formula 3

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    I just changed the trans oil in my GTSi and it was easy to fill via the fill plug. I ran a hose down to it with a funnel on the end, leveled my car on jack stands and filled until it dribbled out. easy as can be.
    Then changed engine oil.
     
  18. robertgarven

    robertgarven F1 Veteran
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  19. etip

    etip Formula 3

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    Yours is what I followed!! I just realized while under there that it was as easy to run a hose with funnel to the side fill port. I just added till it dribbled out and buttoned it up. Not a hard job at all.... thanks for the write up!!
     
  20. etip

    etip Formula 3

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    Oh yeah, also, I didn't drain the transfer case, just the trans. So I didn't need to fill the transfer Casey
     
  21. Matto

    Matto Formula 3

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    #21 Matto, Aug 28, 2012
    Last edited: Aug 28, 2012
    FYI...the two are connected. One fills the other, but (IMHO) it's never a bad idea to soak your transfer gears with oil while you fill....and it's darned convenient filling it from the top with the right funnel. Whenever I crack one of the plugs open, I always put it back in with a new crush washer. Inexpensive insurance.
     
  22. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    You should have -- the wear debris from the transfer gears collects in that area. Not a fatal sin, but makes it even more important to drain it at the next gear oil change...
     
  23. etip

    etip Formula 3

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    I hear ya, but the oil was last changed 1,500 miles ago (completely). I haven't driven much so was just doing a quick change.
     
  24. miketuason

    miketuason F1 World Champ
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    Wouldn't it be a great idea if they somehow can design a way to filter the gearbox oil to catch all the debris? I know the gear oil is much thicker and it doesn't have an internal pump like the auto trans. but, I'm just saying.
     
  25. Pizzaman Chris

    Pizzaman Chris F1 Rookie

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    Mike, how about one of these? (without the flour) ;)

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