F355 - My thoughts on Major Servicing | FerrariChat

F355 - My thoughts on Major Servicing

Discussion in '348/355' started by Markphd, Aug 13, 2015.

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  1. Markphd

    Markphd Formula Junior

    Mar 10, 2012
    713
    So I recently dropped the engine out of my F355, and thankfully I did so, as there are some pretty annoying aspects of dropping the engine that perhaps I fail to appreciate before starting the project. I get why it was designed this way at the factory, and I know that parts commonality, packaging constraints, and other factors like cost engineering, manufacturing simplicity, and just plain lack of consideration in terms of maintenance issues, but there is a great deal of room for improvement. This is somewhat of a rant but I would love to hear the thoughts and modifications made by others to simplify the process.

    Upon pulling my sub-frame, I found that the wiring harness had chaffed through, wires were exposed, and honestly, I have no faith whatsoever regarding the integrity of the wiring to the ECU. This will require me to rewire the harness, as it is likely faulty. Since I am dropping the sub-frame again, I plan to re-engineer the whole thing so that I can quickly, easily, drop the motor and sub-frame with limited drama. The whole thing is getting quick disconnects, there is no excuse for all the extra work and other misery (you should see the scrapes on my hands from wrestling hose clamps).

    I am still amazed by the car, so much is so very elegantly done, but the last 10% can make it go from a maintainers nightmare to a dream to work on. Now that I am settling in to California, I intend to document the modifications I am making for major servicing here in order to help others. There will be pictures this time.


    Here are the things I intend to address in the coming months.

    1. Draining the fluids. This was an entirely annoying process, some of which cannot even be easily drained (e.g. power steering fluid).

    Solution - Add a drain for the power steering fluid

    2. Discharging the A/C system. Should be able to disconnect the A/C compressor and leave it in the damn car.

    Solution - Build a different A/C mounting bracket

    3. Lack of space to get to the needed coolant and heater hoses to drop the motor.

    Solution - Still in work. Likely a re-routing of coolant lines or some other reasonable means of dealing with it.

    4. Limited space to pull the wiring harness through into the passenger compartment.

    Solution - Adding a bulkhead connector to simplify the operation. Remove the need to pull the harness through. Downside is that it is a potential point of failure. Alternative would be to move the computer into the engine bay (not practical or good for the life of the ECU).

    5. Fuel system requires disconnect from bottom of the tank, thus requiring a means to prevent all the fuel from draining out of the tank.

    Solution - fuel tank caps or redesign the distribution system to allow for disconnection at the top of the system.

    6. Having to break hydraulic lines at the middle point of the connection without a bleeder provision at that junction or sealed coupling to prevent contamination.

    Solution - add a bleed screw to the blocks at a minimum. investigate hydraulic quick disconnect suitable for this application.
     
  2. malex

    malex Formula 3
    Silver Subscribed

    Dec 5, 2007
    1,249
    FL
    Interesting thread. Post pics of your solutions as you develop them. I'm sure a lot of folks will be interested, including yours truly.
     
  3. WATSON

    WATSON Two Time F1 World Champ
    Owner Rossa Subscribed

    Sep 9, 2010
    23,856
    WI
    My next engine out will include a replacement of every connection block Ferrari used.

    The female pins open up and the connections become intermittent..or they back out of the block on the male side. My air pump would not fire because of this. Crappy connection blocks will go away.

    I'll be swapping to Weatherpack connection blocks next time. I may make a short 24" pigtail section that passes through the bulkhead. not sure yet.

    Love the quick disconnect idea....hummm Listening.
     
  4. SoCal1

    SoCal1 F1 Veteran
    Owner Silver Subscribed

    Jun 14, 2011
    8,635
    SoCal LA/OC/New Mexico
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    Tim Dee
    Cool ideas

    Thought of doing it butt butt my butt hurts


    Love to see it !!!!
     
  5. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
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    Tim Keseluk
    Coolant and heater hoses could be improved. Good luck with that one. Fuel lines can be disconnected from junction block and fuel rails. No fuel leak problem. Early 355 had ECUs located in engine bay. Easy access but vulnerable location.
     
  6. Markphd

    Markphd Formula Junior

    Mar 10, 2012
    713
    The fuel lines as connected on my junction block are not designed to be removed at the junction block, not even close (at least on my car). Disconnecting from the junction block would have been my preferred solution, and some high quality AN connectors would make that easier.

    The coolant and heater hoses are the greatest challenge, no doubt, but I think I have a plan... I think, but I need to pull the motor again to verify.

    I agree about not relocating the ECU to the engine bay, I would prefer to leave it where it is, this is where a bulkhead connector makes the most sense. Since my harness has been damaged, I think this is a reasonable approach to making it easier to pull the motor.
     
  7. WATSON

    WATSON Two Time F1 World Champ
    Owner Rossa Subscribed

    Sep 9, 2010
    23,856
    WI
    #7 WATSON, Aug 13, 2015
    Last edited: Aug 13, 2015
    It would be nice if the coolant, heater & PS lines all connected at the bottom of the engine heading toward the front.

    You could install the pips / hoses on the engine all hanging down. Install engine and they would be staring you in the face underneath.
     
  8. 2NA

    2NA F1 World Champ
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    Dec 29, 2006
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    No question this would have advantages. Changing what you have now without significant re-engineering is the problem.
     
  9. WATSON

    WATSON Two Time F1 World Champ
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    Sep 9, 2010
    23,856
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    Not easy for sure....but not impossible

    PS lines would be straight forward...just run them down the firewall.

    The coolant lines would be harder...and creating an environment that would allow for bleeding might be tough. But I would still try and craft something while the engine was out of it....

    Curious where this thread goes. Has some interesting potential.
     
  10. 2NA

    2NA F1 World Champ
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    #10 2NA, Aug 13, 2015
    Last edited by a moderator: Sep 7, 2017
    This PDF describes how fuel lines are attached. Unless yours has been changed from stock they are very easy to work with.

    The ECU harness is a struggle to deal with but is quite a bit easier if the fuel tank mounts are loosened a bit. Even a quarter inch helps a lot.
    Image Unavailable, Please Login
     
  11. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK
    I have a 1995 M2.7 with the ecu's in the engine bay...tucked away nicely and away from major radiant heat sources.

    My car's harness is in great condition with 60,000 miles completed
    I just installed the gold connector kit with new silicone boots to all the 2 and 3 pin plugs as the engine was out...the old rubber boots were mostly toast especially the ones for the fuel injectors.

    Anyways.....

    Why did Ferrari relocate the ecu position with the later cars to inside the cabin?
     
  12. 2NA

    2NA F1 World Champ
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    Probably Moisture, dust, vibration & hot muffler.

    In retrospect, the wear and tear pulling the harness in and out on the 5.2 cars seems more hostile. Plenty of cars have ECUs located right in front, under the hood.
     
  13. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK
    But my ecu's are tucked away deep in the rear corners....no moisture or heat gets there..
     
  14. 2NA

    2NA F1 World Champ
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    l
    Obviously Ferrari disagreed.



    Posted from Ferrarichat.com App for Android
     
  15. Markphd

    Markphd Formula Junior

    Mar 10, 2012
    713
    Ok, I feel like an idiot now, that's pretty simple actually. I was so wrecked from all the time shifts that I didn't even notice that!!!

    Thanks!
     
  16. Markphd

    Markphd Formula Junior

    Mar 10, 2012
    713
    #16 Markphd, Aug 27, 2015
    Last edited by a moderator: Sep 7, 2017
    So the car gets out of port in a few days... The man cave is almost ready.

    Unfortunately, I am in a rental property and can't make major modifications to sink the lift into the floor. This will make working on the car much easier though.
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  17. Markphd

    Markphd Formula Junior

    Mar 10, 2012
    713
    Does anyone have a car trailer they are willing to loan for a day near Long Beach, CA. I need one next week and have a tow vehicle.
     
  18. Markphd

    Markphd Formula Junior

    Mar 10, 2012
    713
    Actually, I don't need a trailer anymore, I need to unload the car from a 4'4" height onto the ground from a container shipping chassis. Just my freaking luck.
     
  19. SoCal1

    SoCal1 F1 Veteran
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    Jun 14, 2011
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    Tim Dee
    No but I am in the Long Beach Area if you need a hand with something

    I go for surgery monday so I will be downa few days after that


    A flatbed tow can pull it right out
     
  20. Markphd

    Markphd Formula Junior

    Mar 10, 2012
    713
    Now that is a great idea... USAA, I need to get towed... I know I paid for towing for a reason!!! LMAO.
     
  21. vracer

    vracer Formula 3

    Jun 23, 2014
    1,098
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    Richard
    I thought your transportation cost was to get it "on the ground" here. I can't imagine the shipper of every car transported needs to bring his own method of getting it down
     
  22. Markphd

    Markphd Formula Junior

    Mar 10, 2012
    713
    I have been seriously getting the shaft on this deal, there is only one shipper in Guam and they have not been very helpful on the Guam end... Here in the US they are doing a bit better, but they are still not 100% helpful. Usually you have to pay another party to transport it on a car carrier to your house... It's complicated, but everyone has their small part and everyone wants a pound of flesh to do it. Believe me, I just wanted them to drop it off on any flat piece of land, but you would think that I was asking for them to part the red sea!
     
  23. Markphd

    Markphd Formula Junior

    Mar 10, 2012
    713
    So the Ferrari has arrived from Guam, made it off the truck (flatbed suggestion was awesome), and is in the Garage. Pictures to follow, net is too slow where I am at for the moment. Should start in on dropping the subframe this week. Shipping was well under the estimate.
     
  24. vracer

    vracer Formula 3

    Jun 23, 2014
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    Richard
    That is so shocking my heart almost stopped.
     
  25. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,203
    socal
    Great news! Plugzit, Tim and I are all close by and might have parts you might need.
     

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