348 Engine Removal with an engine crane? | FerrariChat

348 Engine Removal with an engine crane?

Discussion in '348/355' started by jetfuel79, May 4, 2014.

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  1. jetfuel79

    jetfuel79 Karting

    Apr 19, 2014
    158
    Valdosta, GA
    Full Name:
    David
    Good evening f-chatters. I am getting ready to do my engine out service and am contemplating doing it "stooge style" or buying an engine crane. Seems like the pendulum nature of using an engine crane would allow the re-insertion of the engine to be significantly easier since the dreaded 12 frame bolts would be able to line up easier since they are on a pivot. Obviously I would elevate the car up then use the crane to lower the engine and remove it and put it back in the reverse order. I'm just looking for any thoughts on the matter or if anyone has dropped the engine this way before.

    This is what I would be looking at buying:
    Amazon.com: New 2 Ton Engine Hoist Cherry Picker Ship Crane Folding Lift: Home Improvement

    Start throwing spears at this idea now..... :)
     
  2. ernie

    ernie Two Time F1 World Champ
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    #2 ernie, May 5, 2014
    Last edited: May 5, 2014
    Totally unnecessary and in my opinion the wrong way to do it.
     
  3. ernie

    ernie Two Time F1 World Champ
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    Know what, I'm even gonna tell you why.

    In order to pull the engine out the top of a 348 you will need to get it disconnect first. Sounds easy enough, no? Drain the fluids, disconnect the hoses, and "hoist it out". If you are going to remove the engine with the gearbox still attached, have fun. See there is this thing called the subframe, and the gearbox is mounted to the 348 subframe UNDERNEATH the subframe tubing. So, you will need to tilt the engine and gearbox basically 90° to get the engine to clear the subframe tubing. Then you will need to lift it straight up and out, because the passenger cabin is in the way, and because you can't move the engine forward, the gas tank is in the way. Well how about unbolting it from the gear box. Again, not so simple. Even though you disconnect the gearbox you will still need to remove it, and that entails disconnecting the axles, removing the muffler/s, and even the bumper, PLUS removing the clutch first so that you can pull the propeller shaft out of the back of the crank. Then you are going to have to remove the rest of the exhaust system, meaning the headers, so that it will clear the engine bay. You will be creating a whole slew of unnecessary work for yourself.

    You will NOT save yourself work, nor time trying to pull it out the top. Do yourself a favor and just drop it out with the subframe, the way it was DESIGNED to be removed.
     
  4. GordonC

    GordonC F1 Rookie
    Owner Rossa Subscribed

    Aug 28, 2005
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    Calgary, AB, Canada
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    Great post, Ernie! Unfortunately, he was not suggesting using the engine hoist to pull the engine out the top. ;)
     
  5. 4rePhill

    4rePhill F1 Veteran

    Oct 18, 2009
    8,269
    Worcester, England
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    Phill J
    A classic case of: Always read the whole post first before replying!
     
  6. ernie

    ernie Two Time F1 World Champ
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    #6 ernie, May 5, 2014
    Last edited: May 5, 2014
    Hmmm........

    Well when he put it like this:
    Lead me to believe that is what he was talking about. Plus the name in the title of "engine crane" I understood as what I refer to as a cherry picker. Especially when he posted the link to Amazon to the exact thing I thought he said, a cherry picker.
    But hey, what do I know anyway.
     
  7. ernie

    ernie Two Time F1 World Champ
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    Well maybe we can get some clarification from him?

    What were you talking about jetfuel79??????
     
  8. bcwawright

    bcwawright F1 Veteran

    Jul 8, 2006
    5,234
    Georgia
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    Bruce
    Hi David

    I understand what you are talking about but not sure it will work.

    I have a frame that goes under the cradle which is designed for the use of 2 floor jacks...

    Biggest problem and safety issue is getting the car up high enough to slide the engine/gearbox/cradle out..
     
  9. ernie

    ernie Two Time F1 World Champ
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    Okay, did some rereading of the rereading, and I get it now.

    I still say the cherry picker won't work. The reason is:

    1) the shock towers
    2) the rear frame mounting holes

    With that being said, I have seen subframe engine cradles that had bottle jack on all four corners.
     
  10. yelcab

    yelcab F1 World Champ
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    Nov 29, 2001
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    Mitchell Le
    Why would you make life more complicated than it already is?
     
  11. jetfuel79

    jetfuel79 Karting

    Apr 19, 2014
    158
    Valdosta, GA
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    David
    Phew....nothing like a great verbal lashing from the crowd :). That being said allow me to clarify what I was thinking.

    Using the way Ernie has described requires you to elevate the car and have the car at some angle for both the removal and installation of the engine. This angle, albeit ever so slight can obviously make life very difficult when it comes to re-installing the engine. So, in my mind, and without the use of a lift--which we all can agree would be the most ideal way of removing the engine--a possible way of removing the engine would be to jack the car up, place it on four elevated jack stands and remove the engine using a cherry picker crane to LOWER the engine out of the subframe. Think of the crane as the lift and the car left level and stationary. Simply remove the engine but instead of allowing it to rest on some sort of engine cradle you could lower it using the engine crane.

    I tend to believe that re-installing of the engine would be a bit easier since the engine would be able to move within reason to get everything lined up.

    Ultimately I was tossing around another idea that I had come up with and wanted to vet through some more experienced mechanics (Ernie being one of them) to give me their impressions. I am simply looking at some options and am always curious if there is a better way of doing things. Like I mentioned in my first post....begin throwing spears (though some of you skipped the spears and went nuclear on me :) :)). I'm happy to learn the why as well as the how from those that have more experience than myself.

    Cheers!
     
  12. pnicholasen

    pnicholasen Formula 3

    Jan 14, 2011
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    As long as feathers are being ruffled, I'll run this up the flag pole. As noted in the first entry in this thread, those 12 chassis bolts I found to be a major PIA. Next engine out I'm sorely tempted to drill those bolt holes in the sub frame out by maybe 1 or 1.5 mm. I would think that would make the threads a whole lot easier to start, without seriously affecting alignment. Clever or stupid?
     
  13. bosshog8

    bosshog8 Formula Junior

    Mar 13, 2011
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    Pinelands NJ
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    Demetrius
    I totally understand what your trying to do but in reality the 12 chassis bolts are not that troublesome. I thought the rear subframe bolts would be the most trouble but again not too bad. What I found to be the most troublesome was the shock towers. My observations are based on 1 person doing everything. Maybe it's different if someone helps but I don't see how an engine hoist would help anything.
     
  14. ernie

    ernie Two Time F1 World Champ
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    David, you're over thinking it.

    You want the easiest way? Use a shop lift & a custom built engine cradle, one that you can make small adjustments to each corner for fitment. Put the subframe on the cradle then left the entire car off. That is the easiest way.

    If you don't have access to a shop lift, then its two floor jacks, the way I did mine. http://www.ferrarichat.com/forum/technical-q/438576-348-engine-out-major.html
     
  15. taz355

    taz355 F1 Veteran
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    Feb 18, 2008
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    Grant

    I don't think everyone read your post exactly as stated.
    My comment is that if you are going to elevate the car and then use the crane to lower it out the bottom why not just replace the crane with a transmission jack and just lower everything out the bottom?
     
  16. jetfuel79

    jetfuel79 Karting

    Apr 19, 2014
    158
    Valdosta, GA
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    David
    Ernie...I agree. I was simply asking if there was an alternate method...though I have been accused of over thinking things before. I will be using the two floor jack method in about three weeks when I do my service. And of course I'll take lots of photos for everyone.
     
  17. jetfuel79

    jetfuel79 Karting

    Apr 19, 2014
    158
    Valdosta, GA
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    David
    I was simply trying to think of an alternate method that may (or as it turns out) may not be effective. Turns out that there are other more efficient ways of doing it. That was really all I was attempting to accomplish.

    Like many automotive areas there are usually multiple techniques that people use to accomplish the same result. That being said there are usually some techniques that are more efficient and practical than others. I'll gladly use the two jack method and make quick work of it all.
     
  18. ernie

    ernie Two Time F1 World Champ
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    Good man.
     

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