Video of TR Funky Differential Noise.....lol

So one side you have some play in the axle and the other no play, correct?

I might suspect a CV joint.

Other than that.....how are you enjoying the white beast?

 

Have my fingers crossed for you 'L'.

 

That's a significant knock, though amplified a bit since it is in an enclosed area. I tend to agree with Christian on (hopefully a) CV joint though the sound is very metallic (as in no grease left in joint).

I cleaned/inspected/re-lubed mine at ~43K miles (had never been done before) and they were all solid with only plating wear, grease was a little more solidified on one joint (but again minimal wear). How many miles are on your car?

If you end up replacing your joints the OEM is a German manufacturer (Lobro), replacements can be found readily for ~$125 USD and were also used on Porsche 930 and maybe 911T (as I recall).

 

Is the sound inboard or outboard?

 

mine ones had the same knock knock sound, but only when driving and accelarating or decelerating.
when I let the wheels run on a hoist there was nothing. my diff and also the pinion from the CP was broken.
hope you have more luck

 

R.I.P Diff ....

 

Yup. Stop driving the car. Now.

 

She isn't driving it. The diff will be done. She's evaluating the needs and do them one at a time. Engine will be coming out for service and the diff will be looked after. She's also doing the seats. She also has 16'' wheels and tires to replace the TRX.

She's coming up north to visit her daughters and asked me if I could help(teach) her look at the diff. Which I'll do.

 

theoretically it could be that the "2 clutch packages"inside the diff may be not ok. but then you would hear the noise nevertheless if the left side is going faster than the right side or otherwise. but also when the diff is broken ( what I think now ) the pressure to those clutch plates is not ok anymore. and until now I never had broken clutch- or steel discs in the diff, only broken diffs.


you have the possibilty to place a mircophone with amplifier ( better would be 2 or three microphones ) to the gearbox? so one to the left diff bearing, the other to the right diff bearing? then you can locate better if it is a bearing or something more worse

you are sure that the noise is not coming from the wheel bearing right back? because you only hear the noise when you go left.

you have central lock wheels or 5 bolts? if center it could be that the wheel is moving a little

 

A clicking noise when turning one direction is a classic CV joint failure symptom. To confirm, put the car in reverse and crank the steering full left. Now roll back a few feet. If the sound is more pronounced...its the left side. This might be a little difficult with the rear mounted engine noise. But if you can hear it with the engine running, it should still work.

As for draining the Tranny oil its no biggie. You just need the proper size socket and a breaker bar....its on tight. Expect to find some metallic silt especially if its been many miles since a fluid change.

 

I'd put money on "chunks" rather than "shavings".

Best Luck - hope I'm wrong.

Rgds,
Vincenzo

 

The failure of the differential weld allows the left side of the diff to move outboard against the the inside of the trans-axle side cover. The side cover, in effect, becomes the retainer thus prolonging the complete failure until it too gives way.

I can't think of anything in the above scenario that would produce the distinct clunking noise with the amount of rotation you are showing.

I do think of one scenario that would though.
In the case of fellow owner Melvok, the splitting of the diff and case caused misalignment of the ring gear (crown gear) with the pinion gear, chopping teeth off as it went. Very messy and expensive. (His isn't the only one to trash the gears either).

That in itself, along with the demise of Robert Hayden's car at 15 mph, convinced me to park mine until the new carrier goes in.

In your case, hard to say.

 

Guys you're really putting her nerves to the test!

 

Hopefully not as she seems to be on top of a major AND diff change. Im just curious what her findings will be just from a communal knowledge standpoint.

Lracine, please dont forget to update this thread and post pics Also, please share if you found chunks/shavings/gnomes on what drain plugs.

 

I would put money on the CV, if it was the diff it would be making more noise than that IMO.

P

 

Only part of what you said in video came out.

Were you saying the other wheel was blocked and could not turn?

It appears the axles are turning rather easily and if the other side is being prevented from turning it should be very difficult to turn.

If that is all true, once it is apart I don't think it will be any big secret what is going on so no need for the guessing game.

 

Bumping this thread. LRacine, did you get the car up on the rack yet? If so what did you find?

Disregard, Claude sent me a PM as it has not happened yet.

 

CV joint....classic sound.