Alan,
I'm surprised that owing a '53 BN1 you weren't aware that there are many
more BSF fasteners on your car than say my BN1 built in '55. Here are a few
examples...
The five way brake pipe union on early BN1s was attached by a 1/4" BSF bolt
to a captive nut in the chassis. The rear spring shackle screws (The
countersunk slotted screws) that hold the rear leaf springs together were
1/4" BSF. Your original brass battery fixing rods would have been BSF plus
more that are listed in the Clausager Original AH book.
I wouldn't be surprised if the grease nipples on the rear springs weren't
changed to UNF much later, say in Feb '54 with the new eight leaf rear
springs fitted. *Heck the front susupension grease nipples didn't change to
UNF until Dec. '55 on the BN2!*
Easiest way to check is the bolt head (before you use a thread gauge.) If
it's a proper British bolt with the Vendor name on it and the letter rating
code but it doesn't have the circle depression stamped into the head, It is
then it's most likely BSF.
Cheers,
Curt
On Sun, Jan 10, 2010 at 10:28 PM, Alan Seigrist <healey.nut@gmail.com>wrote:
> Thomas -
>
> I was under the impression that was a UNF nipple? I thought the only BSF
> on
> a 100 was on the motor and gearbox, no where else....
>
> Regardless, you can get a BSF replacement from one of my all time favorite
> cottage industry type suppliers, Tim Hodgekiss in the UK. He has a 1" BSF
> nipple (part #831) here:
>
>
>
>http://www.vintagemotorspares.com/phdi/p1.nsf/supppages/hodge?opendocument&part=11
>
> Very nice guy, first rate.
>
> Another option is to get a 3" 1/4" UNF nipple, cut off the threads and
> then run a BSF die on the end....
>
> Alan
>
> '52 A90
> '53 BN1
> '59 Jag Mk IX
> '64 BJ8
>
>
> On Sun, Jan 10, 2010 at 9:48 PM, T+ B Willig <willig@wtnet.de> wrote:
>
> > Hello,
> >
> >
> >
> > can someone direct me to a source where I can get the long rear spring
> > greaser for a BN1? I know that Norman Nock sells them for the later
> chassis
> > with UNF threads. But they will not fit the BN1 chassis which seems to
> use
> > a
> > BSF thread
> >
> >
> >
> > Thanks
> >
> >
> >
> >
> >
> > Thomas Willig
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