Steve,
My understanding is that the cone clutch comes into play when going into
overdrive, then the unidirectional clutch takes over and will not allow
it to slip.
When I took my overdrive apart, there was no unidirectional clutch, just
a lot of very fine metal particles an metal paste in all of the corners
and out of the way places inside the overdrive and transmission. So the
cone clutch was the only thing there to transmit the power. In that
case it could be expected to slip.
By the way, from "How to Fix Your Foreign Car, a guide for the beginner,
your wife, and the mechanically inept" by Dick O'Kane - "Nolite Id
Cogere, Cape Malleum Majorem' or Don't force it, get a bigger hammer.
Charlie
On 12/31/2013 5:34 PM, BJ8 Healeys wrote:
> Hello, Healeyphiles -
>
> I'm trying to get the O/D sliding clutch out to examine the condition of the
> friction linings, which I suspect are worn since I've experienced overdrive
> slipping under acceleration. I'm actually disassembling a spare BJ7 O/D
> before trying to tackle the one in my BJ8.
>
> Page G.8 of the workshop manual says:
>
> "Remove the six 5/16 in. (7.9 mm) nuts securing the two halves of the casing
> and separate them, removing the brake ring which is spigoted into the two
> pieces." So far, so good. Next:
> "Lift out the planet carrier assembly." Not so good. The planet carrier
> assembly is under the sliding clutch, which is under the clutch thrust ring.
> Whether it was necessary or not, I removed the "small circlip" (#8 in the
> exploded view of Figure G.7), but it didn't allow anything to come out of
> the casing.
>
> After "Lift out the planet carrier assembly," the manual goes on to say:
> "Remove the clutch sliding member complete with the thrust ring and bearing,
> the sun wheel and thrust washers."
>
> Given the order that the parts appear to be loaded into the casing, the
> above statement makes no sense to me. In any event, I can't get the clutch
> thrust ring out. Can anyone who has experience with dissembling an
> overdrive provide any advice?
>
> Thanks, and a Happy Healey New Year to all!
> Steve Byers
> HBJ8L/36666
> BJ8 Registry
> Havelock, NC
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