Alex

>> > Does anyone know if it's possible to fit a 9.5" clutch plate and
>> > pressure plate to a 1965 SIIa engine? I understand the later engines
>> > (69-71) had the larger (originally Diesel) clutch plate fitted,
>> > before they went over to the SIII which had the larger clutch anyway.
>
>> > Is the flywheel different between 1968 and 1969, or can I fit the
>> > larger clutch?
>
>> > TIA
>
>> > Alex
>> Only one part number for the flywheel, on the same page that has both
>> clutches listed, so it seems the flywheel is the same. However, there are
>> three dowels for the 9.5" clutch and two for the 9" clutch, so these would
>> need modifying, but it would seem from the parts book that the holes are
>> already there for either two or three dowels.
>> JD

>Wot he sez, you can either remove or grind off the dowel between the >two
>spare holes. You will need two dowels to fill the spare holes (Pt No >502116)
>and you will also need the clutch cover with the centre boss on the >spring
>as the bell housing is deeper on the 2A than the series 3.>
>
>Martin

That's confused matters. Why? Late Petrol 2a's were fitted with the
9.5" clutch, and 2a diesels were also fitted with it.

I presume you mean if I fit a S3 clutch cover, which has the different
release mechanisim?

Alex

JD

Alex wrote:

>>> > Does anyone know if it's possible to fit a 9.5" clutch plate and
>>> > pressure plate to a 1965 SIIa engine? I understand the later engines
>>> > (69-71) had the larger (originally Diesel) clutch plate fitted,
>>> > before they went over to the SIII which had the larger clutch anyway.
>>
>>> > Is the flywheel different between 1968 and 1969, or can I fit the
>>> > larger clutch?
>>
>>> > TIA
>>
>>> > Alex
>>> Only one part number for the flywheel, on the same page that has both
>>> clutches listed, so it seems the flywheel is the same. However, there
>>> are three dowels for the 9.5" clutch and two for the 9" clutch, so these
>>> would need modifying, but it would seem from the parts book that the
>>> holes are already there for either two or three dowels.
>>> JD
>
>>Wot he sez, you can either remove or grind off the dowel between the >two
>>spare holes. You will need two dowels to fill the spare holes (Pt No
>>>502116) and you will also need the clutch cover with the centre boss on
>>the >spring as the bell housing is deeper on the 2A than the series 3.>
>>
>>Martin
>
> That's confused matters. Why? Late Petrol 2a's were fitted with the
> 9.5" clutch, and 2a diesels were also fitted with it.
>
> I presume you mean if I fit a S3 clutch cover, which has the different
> release mechanisim?
>
> Alex

Yes - the S3 & S2a 9.5" clutch covers are different because the withdrawal
mechanism is different. The S2a mechanism was designed to use a separate
lever cover, so when a diaphragm spring cover was fitted, effectively it
needed an adapter fitted to the cover. The S3 was designed from scratch to
use a diaphragm spring cover, so no adapter is needed.
JD