Alan
I think you will find that your engine, gearbox (but not overdrive), 4
stud rear axle, parts of the rear suspension, the radiator, fuel pump
and most of the front suspension is BSF. The rest, mainly the chassis,
is UNF.
We have had discussions about Whitworth threads before and there was
almost a competition to identify the very small number of obscure
applications.
BA changing, in some cases, to UNF on smaller threads and the odd BSP
would make up a full article.
All the best
>
>I have a very early BN1 and I think most of it is BSF, even a couple
>whitworth bits. There are also a couple UNF nuts, but I don't know if
>they are original or not.
>
>BN2s, however, will be mostly UNF. Even some of the stuff on the
>engine on BN2s is UNF.
>
>Best regards,
>
>Alan
>
>'53 BN1
>'53 A90
>'64 BJ8
>
>On 7/15/06, John Harper <AH@jharper.demon.co.uk> wrote:
>> Mike
>>
>> As a general rule most items on the 100 chassis are UNF. In the UK we
>> were changing over to UNF after W.W.II but items such as the engine,
>> early gearbox, suspension parts etc. that came from Austin mostly stayed
>> as BSF. In fact the engine in its diesel form kept BSF into the middle
>> 1960s.
>>
>> You are querying about a BN2. With a very few exceptions your car will
>> be all UNF except the engine.
>>
>> To the best of my knowledge there was no thread changes at any time on
>> the BN2 throughout its build life.
>>
>> All the best
>>
>> >As some of you know I am restoring a BN2 from a rolling inner frame with
>> >most of the suspension into a complete car. The problem is I have had to
>> >find, borrow ,steal, beg for or otherwise buy EVERYTHING else to build
>> >this car. I have a drive train and all the sheet metal now. The sheet
>> >metal is almost ready for paint. The painter says he found 4 cracks in
>> >the rear shroud that have to be welded. He found these cracks after he
>> >fitted all the panels. Paint soon!
>> >My question relates to the final assembly of this car. Is there any way
>> >to tell if I have a late BN2 or an early BN2 just from a frame and
>> >suspension? I am told the early BN2s had BSF threads in most of the
>> >assembly and the late BN2s had UNF fasteners. Can I just use UNF threads
>> >in any case? This car had no ID plate, so I don't know what year it was
>> >built. The only ting that told us it was a BN2 was the rear transmission
>> >mount on the frame.
>> >Mike MacLean
>> >55/56? BN2
>> >
>>
>> --
>> John Harper
--
John Harper
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