Eunos - No Drive, Propshaft Spinning...Diff?

[Zeemax_Mini]

My brother was driving our 1990 Eunos 1.6 over the weekend when it suddenly lost drive. Looking underneath, when it's in gear with the clutch up, the propshaft is spinning and still connected to the diff. With the wheels in the air the rear right wheel spins (but can be stopped if you hold it) but the rear left has nothing at all (but turns by hand without much force). The right hand driveshaft looks like it's come away a bit from the diff, but that might be normal?

I'm assuming it's the diff but before I get into that has anyone else go any other ideas?!

Cheers,

dom

[Munter]

No other ideas. Time to upgrade to a 1.8 Torsen diff and drive shafts.

[hidetheelephants]

Could be a halfshaft; has someone been doing GP starts in it?

[Zeemax_Mini]

Cheers guys.

The car gets thrashed as it's our shared track car, so it's fair enough that something has finally given up!

If it was a broken half shaft would it stop drive to the other side too? What's the easiest way to diagnose?

Thanks again!

Dom

[Flatinfourth]

Zeemax_Mini said:

Cheers guys.

The car gets thrashed as it's our shared track car, so it's fair enough that something has finally given up!

If it was a broken half shaft would it stop drive to the other side too? What's the easiest way to diagnose?

Thanks again!

Dom

Broken driveshafts will be easy to see underneath. Much more likely that it's broken a planet wheel, in which case the pinion connected to the prop flange is still driving the crownwheel, but the rotating cage that the crownwheel is bolted to drives the shafts via a pair of planet wheels on an open diff, which literally allow the differential speeds of wheels side-to-side. it sounds like you only have one, or the pin they are supported on has broken, hence the loss of drive.

It is indeed time for an LSD conversion!!

Peter

[snotrag]

Yup. Diff buggered, its a 1.6, they do that, especially if on track and double especially if its 'shared ownership!'.

1.8 Conversion, either open (cheap) or torsen (Increasingly expensive!).

You will need the propshaft and halfshafts out of the donor vehicle too.