>The mechanics at my garage have told me that the Annulus and main shaft
>must be replaced. They are contacting different Rootes suppliers in
>England to see if they can get the parts.
Hopefully the "main shaft" they are talking about is the one in the OD, and not the one in the tranny.
>In the meantime, I looked over the mailing list archives, and I found some
>talk of using a Volvo D-type OD that will bolt directly onto the Sunbeam
>transmission. Here is where I will need some help to understand what comes
>next.
>
>So here are the questions:
>
> 1- What make and model Volvo D-type OD will bolt on to a 67 SV Alpine?
> 2- What is needed to connect the Volvo OD to the universal joint of the
> propeller-shaft?
Keep in mind here that OD equipped cars came with a special maishaft in the 4 speed tranny to engage the OD box.
>In the original Laycock-deNormanville OD, the Annulus is directly connected
>(welded?) to the output shaft which is connected to the sleave yoke and
>then to the propeller shaft. If I replace the OD with a Volvo unit, how
>do I connect the propeller shaft with the output of the Volvo OD?
The annulous is a one piece "not welded". The volvo, and just about all other D-Type ODs from british leyland use a bold on flange, instead of a splined output shaft. Replacement with the volvo unit would require different drive shaft, that has flanges at both ends, and a is telescopic. Its been said that an MGB driveshaft fits the bill.
Many Volvo 1800s came with D-Type ODs, shoot for an earlier year like 64 to 67. Later years probably used the J-Type.
Earlier triumph spitfires used D-types as well, but they seem to have moved quickly to the J-type.
Whatever OD you buy, be certain that the model number begins with 25. This will ensure that your final gear ratio, and speedo is correct when you are done.
Also, as a matter of trivia, the reason that alpine ODs break the OD output shaft is because the shaft is somewhat long, and quite skinny. Twisted, sheared and frozen sliding members are pretty common for these reasons. Poping the clutch and jackrabbit starts take thier toll on these ODs. It would appear to me that the flange output would remmedy the situation. Perhaps an OD is still in my future.
Jarrid Gross 61 alpine with new sidedraft webers, no OD.