nut in oil journal | FerrariChat

nut in oil journal

Discussion in '308/328' started by Jet Lag, Aug 6, 2014.

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  1. Jet Lag

    Jet Lag Karting

    Dec 6, 2003
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    Seattle
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    Robert Bangs
    #1 Jet Lag, Aug 6, 2014
    Last edited by a moderator: Sep 7, 2017
    I’ve had my 1979 308 GTS for almost 25 years. I had an independent mechanic that I liked take care of it for about 10 years. Since my mechanic moved away I’ve been doing maintenance myself. With the help of Birdman’s tutorials, and the kind help of many F-Chat members I’ve replaced CV joints, the clutch, water pump, fans, rebuilt the rear breaks, replaced the fuse box with Birdman’s, and have had a lot of satisfaction in doing the work myself.

    I can’t remember when the last timing belt change was, but it was before I started my own maintenance; so I just replaced timing belts, tensioner bearings, A/C tensioner bearings, cam seals and swapped out a couple shims to get my valve clearances within spec. Everything was going great until I dropped a 10mm cap nut and it made a b-line for the oil journal behind a head nut under the middle of the exhaust cam on the forward bank.

    I spent at least 4 hours searching and probing with a magnet, and finally gave up thinking it probably went straight to the oil pan…. But I couldn’t sleep thinking about what could happen – to tell the truth I don’t know all the possibilities. I took the cam cover back off and spent another 4 -5 hours fishing with a rare earth magnet attached to a fish tank air line hose. I can go sidewise a couple inches and straight down 22 inches, but no nut.

    I guess my next move is to remove the oil sump, but I haven’t figured out how to get a wrench on that nut holding the dipstick guide/ tube. It looked like removing the alternator would help, but the bolt holding the alternator is blocked from removal by the very dipstick guide I’m trying to get a wrench on.

    Feeling really stupid, and lesson well learned: protect those oil journals better while working on them

    My questions are: 1) what is the most likely result of that 10mm nut, and 2) how the heck to remove that dipstick guide so I can remove the sump.

    Any helpful comments will be much appreciated
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  2. yelcab

    yelcab F1 World Champ
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    Nov 29, 2001
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    Mitchell Le
    i found 3 of those nuts in the oil pan one time. They were sitting there not bothering anyone. But if you want to remove the pan, find a short adjustable wrench and break loose that big nut around the tube, It does come out.
     
  3. enzo360

    enzo360 F1 Veteran
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    Aug 1, 2004
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    Jurgen Durand
    #3 enzo360, Aug 6, 2014
    Last edited by a moderator: Sep 7, 2017
    Robert, this is from the 1978 OM. I figure you're talking about those two oil drains I've highlighted in blue? If so, seems they go down to the oil pan.
    Guess for your peace of mind you'll need to find that bugger! Hoping it made it's way down to the pan wouldn't do it for me, only with it in hand I would be happy.
    Best
    Jurgen
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  4. don_xvi

    don_xvi F1 Rookie

    Nov 1, 2003
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    You could also go get a borescope (I've found my previous-generation Harbor Freight one with the small camera has become my favorite tool!) and make a thorough investigation of the nooks & crannies of the cylinder head there and call it good.

    I've heard of a number of surprising items kicking around in oil pans over the years.
     
  5. Ferraripilot

    Ferraripilot F1 World Champ
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    May 10, 2006
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    John!
    I've found those nuts and washers stuck to the oil screen in the sump before, no idea how long they had been there but they certainly weren't bothering anything.
     
  6. mike996

    mike996 F1 Veteran

    Jun 14, 2008
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    Unfortunately, you have to find the nut. Though it may be there, you cannot assume it is now in the oil pan. :( As noted, when you remove the pan you may find it AND/OR other items.

    In addition to various nuts/bolts, I have found in oil pans: A crescent wrench, several different sockets, and my favorite…a .45 ACP cartridge!
     
  7. Bell Bloke

    Bell Bloke Formula 3

    Dec 6, 2012
    1,839
    UK
    Or if you are good at fishing and don't want to remove the sump and all that other stuff....
    I got a bite after about 5 mins......then it got away, then I caught him again ;-)

    [ame=http://www.youtube.com/watch?v=Q6bc7DqEu8o]A Useful Magnetic Tool - YouTube[/ame]

    It'll be on the gearbox shelf....mine was.
    You need superthin plastic coated wire as used by aero modellers, it's called closed loop cable. See video for more details....It works!
     
  8. Bell Bloke

    Bell Bloke Formula 3

    Dec 6, 2012
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    Alternatively, you could pick the car up by it's rear bumper and give it a little shake, then the nut should drop into the sump ;-)
     
  9. Futureman

    Futureman Formula 3

    May 16, 2007
    2,024
    I did the same thing on my 89 328. It went straight to the oil pan. The oil was drained so I put a very strong magnet on the bottom of the pan and started probing. Even with the baffles that the 328 pan has (your 308 doesn't have these), I was able to locate it and drag it out through the drain plug.
     
  10. Jet Lag

    Jet Lag Karting

    Dec 6, 2003
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    Robert Bangs
    Jurgen: Thank you! That was the exact information I needed to give me some piece of mind. I'm still going 'fishing' and will probably take the sump off,but I feel much better. Thanks again
     
  11. Jet Lag

    Jet Lag Karting

    Dec 6, 2003
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    Seattle
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    Robert Bangs
    Thanks for making me feel better, and thanks for all your videos; I enjoyed them very much. How did you attach the rare earth magnet to the wire? JB Weld? The fish tank hose I used just happened to be the right size for a magnet in a tool that I hated to destroy.

    I'll keep fishing and keep trying to drop the oil pan for another 50 hours or so, but I'm feeling better about the possible results if I can't retrieve the nut.

    Thanks again
     
  12. Bell Bloke

    Bell Bloke Formula 3

    Dec 6, 2012
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    UK
    To be honest even if you don't get it, it won't do any harm.
    If you don't get a bite when you go fishing you could just leave it there.
    But if you are anally retentive like me then you will have to remove it ha ha
     
  13. 350HPMondial

    350HPMondial F1 Veteran
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    Futureman,

    A
    Very good idea...
    But,
    Aaaaaaaaaaaaaaaaaaa,
    Nope, the 308 does have baffles in the oil pan.. Both of my (a 1979 and 1981) motors had baffles in their oil pans. This is why you have to remove the dip stick tube, before you can drop the pan.
    ;) after you do that, the rest is easy....
    And, replace the gasket.


    Good luck finding that nut.
    Edwardo
     
  14. GordonC

    GordonC F1 Rookie
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    Aug 28, 2005
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    "While you're in there..." opportunity - having to drop the pan would be the perfect time to install a set of Verrell's improved shift shaft seals!
     
  15. Futureman

    Futureman Formula 3

    May 16, 2007
    2,024
    I thought the early 308's didn't have them. When did they add them? Either way, I was still able to get the nut out with the baffles in the way. Just took some puzzle working.
     
  16. Brian Harper

    Brian Harper F1 Rookie
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    My series 1 GT4 had baffles, so it would have had to have been the very first few cars. I never heard before that any 308s didn't have them.
     
  17. Bell Bloke

    Bell Bloke Formula 3

    Dec 6, 2012
    1,839
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    Sorry forgot to say, I tied a knot in the end of the wire so that it can't pull out of the JB Weld and the magnet is a rare earth one also from an aeromodelers shop.
    I glued the magnet to the knot area with the JB weld and then shaped it to a teardrop so that it could never get into a space and not get out again if that makes sense.
    Using thin closed loop wire allows great flexibility and strength. once in the oilway and at the correct depth you will hear it hit the ledge then by twiddling it about you will hear it snap onto the nut.
    Tip:Try fishing at night so you can hear the bite.
    Good luck, Bell.
     
  18. Jet Lag

    Jet Lag Karting

    Dec 6, 2003
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    Robert Bangs
    #18 Jet Lag, Aug 7, 2014
    Last edited by a moderator: Sep 7, 2017
    Starting at about 9:30 AM, I finally removed the dipstick guide/tube around 4:20 PM with a feeling that I accomplished the impossible. Thanks to Verell for the wrench info that allowed me make the necessary tool to remove the dipstick tube. I removed the sensor and pan nuts, dropped the sump, and…… no 10 mm nut to be found. Baffels: Yes; even dampening trap doors (see pix), but …..no nut. After seeing the diagram that Jurgen was kind enough to post I was sure it would be in the sump. No such luck.

    I shoved my magnet attached to a fish tank tube everywhere I could imagine, but no nut. I don’t really know the anatomy of the engine enough to know the possibilities, but I feel like I’m screwed. I’ll try tracking down the materials to make a better fishing tool similar to Bloke’s , but other than that I have no idea what to do next.
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  19. Jet Lag

    Jet Lag Karting

    Dec 6, 2003
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    Seattle
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    Robert Bangs
    Thank you for the additional information & good wishes: i'll go shopping tomorrow.
     
  20. don_xvi

    don_xvi F1 Rookie

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    Get a borescope. I've found that my Harbor Freight one has become my favorite tool of all time that I use far more than I'd imagined when I bought it for a specific task to look inside a cylinder... The replacement model is here: High Resolution Digital Inspection Camera with Recorder

    Look along the top of the exhaust and air manifolds. (I think this was on the front bank.) React with surprise if you find it here, but feel great relief.

    Inspect the top end thoroughly, angling it inside every nook & cranny, under every casting bridge, behind every cylinder head nut. Be methodical and thorough.
    Accept that the nut has fallen outside the engine and lodged itself someplace it won't cause any harm and reassemble.
     
  21. mike996

    mike996 F1 Veteran

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    #21 mike996, Aug 8, 2014
    Last edited: Aug 8, 2014
    "Accept that the nut has fallen outside the engine and lodged itself someplace it won't cause any harm and reassemble."

    Personally, I wouldn't go so far as to accept that it fell to some non-harmful area just because I couldn't find it. But, per that, is it possible that the nut did NOT actually fall into the engine but bounced off to some external engine area or onto the floor? Have you looked in such areas?
     
  22. yelcab

    yelcab F1 World Champ
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    I dropped a nut like that once. I knew it did not end up in the oil pan. I had to go buy a small, bendable magnet and turned it into a hook so that I can fish around into one of the small obscure cave underneath the cam shaft. Found it. Effing nut. That is also the main reason I absolutely hate stainless steel fasteners. I know I will drop those, and no effing way to get a magnet to it. It is mildly magnetic but why ask for trouble.
     
  23. Iain

    Iain F1 Rookie

    Jan 21, 2005
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    I am somewhat bemused by how many of us have now done the nut/washer down the oil gallery trick! (There was I thinking it was only me!)
     
  24. yelcab

    yelcab F1 World Champ
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    Where do you think swearing comes from?
     
  25. robertgarven

    robertgarven F1 Veteran
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    Feb 24, 2002
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    Robert,

    first time I worked on my engine I found one of the alignment shims in one of the cam caps was missing. I replaced it hard to find even though this is the same ferrari part as many other places.... Anyway I had a lower oil radiator hose go bad and when I removed the banjo bolt on the engine side I found the missing tube.

    BTW look again , I have dropped stuff and found it sitting on a shelf or in plain site somewhere. I forgot if you said you saw it go down a hole. I am certainly not an expert but would assume since these other expert mechanic decided to put the engine back together and move on I would think it would end up in the pan or where mine was. That said I have spent hours looking for a errant washer even in a place I know it is not critical....

    Rob
     

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