F40 Jacking points

[davejw]

Anyone have a favourite jacking point? On any 'normal' car it would be pointed out. The book just says place on level ground, loosen wheel nuts and jack car. Seeing as Maranello managed to drop it off the jack last summer, thought I couldn't do any worse myself. [It's not my car otherwise I would just make a judgement call on a suitable section of chassis.]

Also, can anyone talk English and give me an lb/ft torque figure for the wheel nut? [Not very good with Kilos or Newton Metres etc].

Thanks,

Dave.

[PetrolTed]

Verdi Ferrari tell me that it's 65kgm (by my calculations that is 470 ft-lb, but that seems a lot!).

[danhay]

PetrolTed said:

Verdi Ferrari tell me that it's 65kgm (by my calculations that is 470 ft-lb, but that seems a lot!).

65kg = 143lb
1m = 3.28ft
But I think at that point you divide the 143 by 3.28 which gives 43.5 ft-lb which sounds a bit more reasonable?

Having said that, it would explain why I had such a hard time getting the wheel nuts undone on my 208?!

[davejw]

Now you see where I'm getting confused!! I thought like Ted but seeing as the tool kit only has the socket and not the 20 foot ratchet, thought I'd seek help....

[PetrolTed]

65kgm is correct but my conversion is wrong as has been pointed out. Don't use www.onlineconversion.com/ for torque conversions!

[Pies]

Seem ok to me if you use kilo newton meter to foot pound = 47.1

if you use kilogram force meter to foot pound you get 470.1

[danhay]

I think I may have been talking (torqueing) b*ll*x earlier. Have had a look on my torque wrench and 65 newton metres = 47 ftlb? (not 43)

So perhaps the conversion is right, but the 65kgm should in fact be 65 newton meters because 1kg is equivalent to 10 newtons?

Also, I've had a look in my Workshop manual (for a 308) and the highest torque of any component is only 22kgm, and the engine's max torque is 29kgm!

It says 9kgm for "Fixing wheel to hub".

[prancing]

I would phone a F'dealer for wheel nut torque settings on an F40, I think it is about 200 ft/lbs on my friends, he uses a huge socket and a 4 foot bar!!!!

Talacrest are usually helpful.
Cheers
G.

[PetrolTed]

I've checked the conversion elsewhere and it is correct at 470 lb-ft.

Verdi also faxed me over the specs which confirm it at 65kgm.

I'm told it does need a large torque wrench!

[MattOz]

Dave,

Regarding jacking points. I understand that the car needs to be lifted by the same height on both sides to avoid any un-necessary strain/twist on the carbon/kevlar etc.

Guess that you could lift from the middle at the rear etc.

Matt

[davejw]

Many thanks guys. I've taken everything you've said on board but will check with a dealer just to be sure - I too heard the correct torque was around 200 ft/lbs which is stratospheric and beyond the manf tolerances of my broom handle so will also have to go shopping. The car's too nice to bodge!

Cheers,

Dave.

[danhay]

Has an F40 got a single central nut for the wheel?

That would explain why it has to be tightened to such a high torque?

[PetrolTed]

davejw said:

...will check with a dealer just to be sure - I too heard the correct torque was around 200 ft/lbs...

I can forward you the fax I've got with the specs if you still want confirmation of the figure.

[apprentice]

Whatever you do don't grease up the wheel nuts! It will cause grief when you come to remove them at a later date!

Access to a scaffold pole will be a necessity.

[Pies]

I assume the car has no spare then

[Stig]

lol - how many forums do you know where genuine contributors post asking how to jack up an F40!!!


Gotta love PH

[davejw]

How do you respond to that ?

When I was growing up you generally do what it takes to get a job done - if something breaks or get's crushed you put it down to experience! The F40 commands an anal approach because if anything goes wrong the pain is very anal too!! I'm not too proud to ask... Now, having jacked it up, which way do I turn the nut and do you think I could use the pole from the spin-o-matic washing line to exert the right leverage?? Have a good weekend all !

Dave.

PS Know anything about Ultima handbrake cables? I have an MOT to pass....

[Pies]

Now, having jacked it up, which way do I turn the nut and do you think I could use the pole from the spin-o-matic washing


Nope usually made of ally so will break

[Stig]

davejw said:

How do you respond to that ? When I was growing up you generally do what it takes to get a job done - if something breaks or get's crushed you put it down to experience! The F40 commands an anal approach because if anything goes wrong the pain is very anal too!! I'm not too proud to ask... Now, having jacked it up, which way do I turn the nut and do you think I could use the pole from the spin-o-matic washing line to exert the right leverage?? Have a good weekend all ! Dave. PS Know anything about Ultima handbrake cables? I have an MOT to pass....

Mate - don't take my comments the wrong way! I wasn't making disparaging remarks about your mechanical ability!!! I was just pointing out that there are a fairly high proportion of members on PH that have some serious vehicles and it just struck me as a bizarre thread as it's just so, so NORMAL It's fantastic!

Regarding Ult handbrake cables - yeah sure, what o you want to know?

[Prancing]

Just a thought, but I would have loosened the wheel nuts before jacking the car, you will need someone with big leg muscles to push the brakes now the F40 is in the air. Good Luck.