348/ Mondial T Electrics Failure (not all though)

Sounds like two seperate problems. Radio and HVAC are probably related to the blown fuses; the other troubles you experienced seem to indicate an alternator going bad. Start with the following:

1. Have the battery and alternator tested.
2. Check all fuses and relays; clean with electrical contact cleaner.
3. Ensure you are getting a good ground from the battery to the frame.

If the Mondial T is anything like the 348, electrical gremlins are one of the *charming* characteristics of these cars!

 

Also, check all the pin connections to the fuse box. these cars are known for either the fusebox having bad internal connections or the pins coming loose.

Regards, Jim

 

In addition to what the other guys have said. The modial T's have the Delco alternator in them.

Here are the instructions for removing it http://ferrarichat.com/forum/showthread.php?t=142329 It's for the Nippondenso alternator, but it's just as easy to remove the Delco unit. The only real difference is the support bracket for the Delco, but still almost the same procedure for removal.

Here's the info you'll need for your Delco unit rebuild. http://ferrarichat.com/forum/showpost.php?p=135611780&postcount=10

It shouldn't cost you more than 100 quid to get it rebuilt. Heck you could even buy a new one here from the States at "half price" as the GBP is 2-1 against the US dollar right now.

 

Depending on the service history of your car, the alternator might have already been updated by a dealer to the upgraded Nippondenso unit specified by the factory. It was a $1500.00 upgrade several years ago.

My best guess is that the fuse box is flaky. They use a multilayer circuit board that delaminates over time. If you remove and re-insert some of the relays, do the symptoms change? I used to have to do this periodically (once a year when something stopped working).

Also, I suggest checking that your battery cables are tight, that the ground strap is in good condition and tight. Final point, there was a recommended upgrade to add another ground strap (just a thick wire like a 4/0 gauge) from a convenient bolt under the oil cooler to the frame.


Lou

 

Jerry,

I have had a T for one year. I have fixed everything in the car, every bulb, fan, switch, everything works!.

If you want to, I'd be happy to pop over (I'm in west London) and have a good look over yours. I also have assembled vast amounts of info which will save you a ton on repairs, services etc. (eg. Ferrari headlights = 375 pounds + VAT used at Eurospares, the Hella equivalent used on london transport buses - which are IDENTICAL less the horsey logo - 68 pounds NEW!!!).

Sounds like your alternator's brushes or diodes (I'm pretty sure the brushes) went. The car would be able to run on the battery charge for quite a while depending on the use of lights etc. Replacing the brushes is the cost of a ramp/lift + about 15 pounds an 1-2 hours.

Good luck, and feel free to call me on 0777 037 3029 if I can be of help...

Marco

 

Hey Jerry,

If you would like send me a PM and let me know what issues you're still having then feel free.

I believe I still have a wiring diagram you and I can go over to further assist in these problems.

Have a great day and contact me if needed.

 

my 1st bet is fuse box. If you can, check the connectors at plugin point to box, then if daring, take out fuse box and look at back for layer seperation...if so, you'll need to truly consider replacing fuse box: Somewhat common on 348/T models. I got an ONS from Europe for, not cheap, $1,000 delivered and felt very lucky.