smel, when you are on a track and see you are too fast you must have to drift - or you leave the track
When discussing the scope of the problem, I think there is merit to the argument that many failures never get counted. Case in point, visiting my mechanic earlier this week he showed me this grenaded carrier from an 86 Testarossa. Guy isn't on the web and is low key with his Fcar ownership. Anyway, here is another to serve as fodder for more "it is not a matter of it, but when" counterpoints. And by the way, it is just my opinion but I am in the camp that can't believe that a high performance car shouldn't be able to do a burnout w/o risk of catastrophic failure. I thought it was utterly ridiculous that Nissan would offer a "launch" setting on the GTR for top performance runs but then void the warranty if the computer showed you used it, and I feel the same about this problem. I don't believe cars should be abused in all manners just because you pay top dollar for them, but to allow this type of design weakness is pretty unforgiveable in my book. YMMV. Image Unavailable, Please Login Image Unavailable, Please Login
I agree, you should be able to abuse it from time to time. I can't recall how many times I pounded my 440 sixpack challenger (or hemi roadrunner) to death and I mean outright power shifting and it came back for more and never broke. I remember as a kid over-revving my 340 to the point the hydraulic lifters were clacking after a big milky funnycar burnout and it still kept going (I was 17 so please forgive me). They just dont break. A ferrari should be able to do a burnout. If it cant then the engineers didnt take into account that this might happen. F1 cars do it all the time, repeatedly during warmup and dont break and they are not drag cars.
Good day Paul, Sadly some firms never like to admit to a design problem and this is not just Ferrari, but a number of other big name manufacturers from all Industries. I guess if they admit to a problem then they would have to fix it... so, a lot of these companies call these issues "features" ... or in other words, it is meant to do what we consider a problem and/or fault. No one likes the fact that design problems arise, but it happens... Everyone and every firm makes mistakes... it is how the person/firm addresses the problem is truly a testament to the person/firm's character. In one case I am familiar with a buddy discovered a major flaw in Microsoft Windows (go figure ) and promptly notified Microsoft, as it was causing his firm serious issues (i.e. lots of $$$ in support costs). Microsoft came back and send the problem is actually a "feature" ... in other words having Windows consistently crash when doing a standard process is actually a "feature"! ... My buddy and their firm were no slouches and stated that is fine and that given that this is a "feature" they will promptly notify as many firms and publications of this new fangled "feature". Interestingly Microsoft decided that in lieu of them publisizing this "feature" that they would "change" it for them... as a favor ... if they would allow Microsoft to do the notifications ... Cheers, Sam
So I may have come across a very reasonably priced TR that i hope to get a look at in a week or so. One thing that has always shyed me away from TRs are the rumors of big repair bills compared to anything I saw on my 308... What kind of cost would one be looking at in upgrading to the billet unit I see here every once in a while?
if you are lucky only the cost for a new diff and 2 bearings plus labor if you are unlucky the same plus new CP plus much more labor plus very important: new oil
In just a few minutes of searching sounds like a new updated diff is around $3K USD. And it doesn't seem like there is much to be saved in doing it as a preventative measure either since the eng/trans has to come out and as long as that's out you may as well do a full service so those together could be $15K+ USD
Correct Friend Meister. (waht's your name Buddy ?) But not always this happens .... just be aware of the chance ... that is why we post it here. So cheer up, have a look at the Fcar of your dreams and decide if you want to accompany us all in a fabulous 12 cilinder Testarossa ! Let's Roll
only to change the diff it is not necessary to take the engine out, but it would be easier to do this job
So, to understand the process, if I am removing the engine in my 51,000 km '91 model for a belt change anyways, all I need to do is (i) remove the engine from the rear subframe (easy), (ii) remove the axles and inner CV joints (not too bad) and remove the rear clutch bell housing, clutch and flywheel before removing the intermediate cover at the rear of the engine? Do I not need to lift the engine from the transmission to get the bolts which retain that cover? I may not be that comfortable trying that in the comfort of my living room. The cost of the differential housing does not seem prohibitive. The labour to get to it, well, that is another thing.
with this disciription john the work is have done you don´t have to separate the engine from the gearbox only to change the diff
But you must find yourself a very good/skilled GearBox maker somewhere ... installing the diff in the housing is an ART !
You are very wrong my friend!!! There is lots to be saved in taking preventative measure . 1 crown and pinion 6 to 7k 2 side cover 2.5 k 3 labour to remove motor and transmission to do repair because it now took out your crown and pinion 4 to 5 k. To just change your carrier this can be done very easy with motor still in the car. Ask me how i know.
I also agree tr512 but I think the diff and the carrier is the same? but when you do also the CP then you may just change all bearings. so additional costs.
Whaauw, that looks good, payed that in Euros in Germany (were specially ordered in 3 sets) ... hope the specs ar really as needed ... (double hardened) ...
November since the last post about the diff failure?? What is going on! I'm kidding, I'm kidding... I don't mean to bump this thread up, I just ran into this video today. Some guy in Spain who is filming a TR diff. I don't speak spanish very well but he seems to talk about the fact that they all break and were poorly built. Regardless of anyone's opinion on the whole diff thing, it is interesting to the diff actually in place in the car. [ame=http://www.youtube.com/watch?v=EEhLwsp4qrk]Fallo diferencial Ferrari Testarossa - YouTube[/ame]
