Lost all gear oil today, 1991 Testarossa

4 post lift for the TR is not so good. 2 post would be much better - and cheaper

 

I am glad you are making so much progress .. let me know if you need anything

I think between the post I plagiarized, the Wsm, part diagrams and of course turbojoe you got this

Your skills also of course help ..lol

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These studs can be stubborn. Sometimes not even a stud puller works. An alternative is to sacrifice the stud and weld on a nut or a small cross bar you can turn the stud with. If needed being, weld on the nut / bar onto the stud relatively close to the aluminum (Without being too close!) hereby introducing some heat into the stuck thread and turn the stud out. Worst case you ruin the thread in the block, but this is something we relatively often experience working on f-car blocks and is easy fixed with an insert. Great thread by the way, you have a great no blame approach to this unfortunate incident that only Enzo can be held responsible for. Thanks for keeping us updated, you make me serious consider to swap my diff with something more solid.

Good luck. Best, Peter

 

for me those are also toys - but also it is my livelihood - and I like it

and thank you for all the great photos you posted here. all is clearly to see

 

I'd like to know how all that carnage can occur without being heard somehow? Shamile delivered what he rightfully thought was a perfectly fine car. OP only mentioned he noticed smoke and pulled into a parking lot. How is it possible all that damage is done with no noise?

 

when you know how all is working then you would not ask now.
there is no noise to hear - and when you hear it is too late

hopefullly you changed your diff already in your 85 TR?

 

I'm sure the OP MISSED my post where I said I had an extra Testarossa workshop manual, as he was right in the middle of the first night
teardown of his diff.

So I bought a basket case 86 Testarossa in 2015 from Ferrari Chat poster mouser57. It's been sitting, waiting for me to find time to do both it and do a belt service and diff on my 15,000 mile 1990 Testarossa. I couldn't stand it any more, I had to check to see what my diff looked like in the car I bought in pieces, so removed the back cover last night. Car has 61383 kilometers on it, or 38143 miles. I was pleased to see that there was no apparent cracks and it's totally in great shape. DOESN'T matter, I'm still changing over to a one piece carrier. Shamiles car had TWICE the mileage, and it is possible for these to go the distance. I paid 60K for my basket case car just before Testarossa prices went through the roof in 2015. I totally took a gamble on the car, and if it turned out the diff was trashed, I wouldn't have expected compensation from the seller. Whoever was posting the BS about Shamile having some fault, is out to lunch.

An earlier post was thinking some shop should reproduce the 'expensive" side cover of the car. I manufacture parts and have hundreds of patterns for castings. At $800 and change for this part, Ferrari is NOT charging a premium for it at all. Fact i think it's pretty reasonable. IT COULD be made out of a solid piece of aluminum, but with the hole for the input shaft going though it, it's a lot of work to whittle out of a solid chunk. Making the pattern and having it poured is a possibility, but NOT for an eight hundred dollar part, that a shop MIGHT sell twenty of them. There's some tight tolerances in the bearing bore, the depth of that bore in relationship to the flange that bolts to the main differential casting. Precision costs MONEY!

 

I have not and here's why. I've had my car for 17yrs and in that time I've been lucky enough to live near and get to know 4 of the finest Fcar factory trained and now indie techs here in the Boston area. One was factory trained when the Tr was launched. So he has 35yrs dealing with these cars now. I bought mine from a customer of his in fact. The other 3 are not far behind in years of experience with Tr's.
Anyways, not one of them has ever mentioned to me 'hey better get that diff done as it's gonna let go sooner or later'. None of them. Yes they've done them over the years but not enough to raise a concern about it to me when I've asked their opinion. If I wasn't on fchat this subject wouldn't even be on my radar! I agree that it is good to do as preventative insurance for the future, but I'm not convinced it occurs enough for me to park it and make a new diff a priority. Maybe next at the next engine out. Not losing sleep over it in the meantime.

 

there's gotta be a way to measure <temp?, x-ray?, noise?, vibrations?> with a sensor.

 

Ask if they will put their money where their mouth is. If by some chance it breaks, they pay the bill.

 

If you are not an expert, my expertise level barely tells me how to fuel a car!!

So basically you “had luck”Because only the differential and the cover were damaged?
What needs to happen so the differential fail becomes a 20k repair?


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I kind of think the OP has a parts manual, but if he doesn't , or anyone else needs immediate gratification, this is a link to a REALLY nice parts book put together by a Ferrari Chat poster- https://drive.google.com/file/d/1Yc7s7jUUFpA8gLk6zi4LIsE0IEAzd3AE/view?usp=sharing

I bought one off of ZULU for NINE bucks including postage and got a really nice 190 page book.. Right now the ZULU book doesn't seem to be appearing.
At MIDNIGHT on the night Jamie was trying to discover what broke- a parts manual MAY have been handy. Although looking at it, it wouldn't have helped him realize there's a shield attached to the left side cover, along with the input shaft.

 

OP and turbo joe are rockstars on this thread!


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Hey I think I deserve a little credit


After all I told you about the quill shaft and splash guard and copied post with detailed instructions..come on ..lol

And I stayed up till 3am to help .... and sent you the Wsm ..

Boy what one must do to get some credit ...



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Thanks I have the Robert complex from "everyone loves Raymond". .can everyone tell ..lol ..

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