Tooth found in differential drain

what year car and how many miles when the problem happened? What kind of noise was it making?

 

1987 TR 36000 miles. When I purchased the car it was noisy in 1st gear. Previous owner said he asked PO and said was always noisy. Changed gear oil soon as I owned it, nothing in old oil. 3-4 years later changed gear oil again and noticed small piece of gear tooth. I Rebuilt gear box with Newman diff. also new 1st and 2nd gear.( 2nd gear small one was spalling). 1st gear large, tooth fine looking but missing small 2 pieces. Small 1st gear was spalling badly. After rebuild no noise and recent gear oil change shows clean magnets.

 

Thank you!

 

Any pics of the process? I'm especially interested in when the engine comes off the transmission.

 

so long as you arent elderly I’m sure you'll be fine.

 

Good luck to the thread starter, sounds like you're able to do the work yourself and save some money there. I've wanted a TR for decades, but stories like this make me realize that though I may be able to afford the car, I just don't have the stomach for the maintenance should I be "unlucky."

 

Rory,
I understand your thoughts.

My Testarossa was laid up from 2006 until this year for a variety of personal issues. Not the car’s fault. Mine.

Yes, if I broke parts it would be a high cost adder and sad for sure... but...
As I now drive this car once again, it is... well.... almost spiritual. I can ‘feel’ the inspirations of Enzo himself. I can hear Niki Lauda with his flat 12 in every shift.

It runs so sweet....

Hard to put into words.

In the interim, I had an ‘04 360 Spider. Nice car... but just a car. Sold it.

These cars have ‘issues’ for sure. That said.... I would not trade it for anything else.

Life is too short.... and getting shorter by the day. This car has been a real treat in my life. Owned it for 23 years now and am thankful for every day.

 

Great points and I'm sure your car is wonderful to drive and worth every penny to you. I'll continue to be jealous over here...

 

https://gripperlsd.com/product/ferrari-512/

 

wow thats less expensive than other options

 

I bought one of these for my car, ALL NEW INTERNALS!

 

I hope so too, good luck with it!

 

Better grip off the line and comes out of the corners better, NEW posi plates inside!

 

TR posi can be set for substantially less slippage just by stacking the posi plates in a different order and new plates are readily available and not that expensive.

I do not generally set them tighter because it makes the car more tail happy and on wet roads it can cause people problems.

As far as off the line grip, that is limited by the fragile transmission main shaft. They do this with a stock set up. Do you really want to put more load on it?

That shaft is about as big as my finger. Was designed for skinny tires and a lot less power and torque.

 

The posi tension is adjustable and lets not forget

LESS EXPENSIVE!!!!!!!!!!!!

 

The same.
http://www.superformance.co.uk/flat12/differential.html

 

Tape over the intake ports. Check my gear box post on gearbox separation. The gear box is heavy. Lift the top of the engine off the gearbox, sort of hidden nuts under flywheel.

 

Gearbox is 240lbs.

 

Cassidy, Your total engine cradle is similar to the one I made.

Dave

 

To help those identify an M diff here it is. There's 4 windows on the left side to allow the broach to pass through the housing and cut the clutch pack slots. The broached slots are the original reason for having the open end that was later welded shut becoming the weak spot. I don't know why they took this approach on the heavier more powerful cars when they didn't on the 308 or 246.

Image Unavailable, Please Login