[Saloon-lovers] PAS banjo bolt seals

Paul,
If I read you right and you’re talking about the line from the reservoir
to the pump, I’ve used those compressible copper rings, which are
sold for sump plug seals, with some success. They don’t leak
(unlike the rest of the system!). I can’t tell you the size without
stripping the joint, but I took the old seal to my local car parts shop
and matched it there.
If I remember correctly, the original seal is a copper washer, which
can be annealed and re-used any number of times.

"Does anyone have a source/part number/idea for the gaskets/seals
on the
banjo
for the supply hose for the generator mounted PAS pump ? "
Kind regards,
Richard S-P

“There’s a fine line between a hobby and obsession”

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Hi Paul,
I don’t have the part numbers I’m afraid but when I went to rebuild my
pump I stripped out the few seals in it including the banjo seals and took
them to my local hydraulic shop and matched them up. Don’t recall them
having the banjo seal that was originally in the PAS set-up but they had
something else to replace it with that is said to not leak…which of course
goes against all intent that the design engineers had originally…I believe
if asked a Jaguar engineer in that period he would have refered to a “leak”
as a “pressure relief valve” :wink:

"Does anyone have a source/part number/idea for the gaskets/seals
on the
banjo
for the supply hose for the generator mounted PAS pump ? "

Chris Burdo
1964 3.8S(MOD)OSJR Inspired
1959 XK150 FHC
chris@jag-lovers.org
www.burdospeed.com
Norwich, CT, USA - Jaguar Club of Connecticut_________________________________________________________________
Click, drag and drop. My MSN is the simple way to design your homepage.
http://click.atdmt.com/AVE/go/onm00200364ave/direct/01/

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In a message dated 2/20/04 1:26:54 PM Eastern Standard Time,
richard@porterfamily.org.uk writes:

<< If I remember correctly, the original seal is a copper washer, which
can be annealed and re-used any number of times.

Hello Richard,

No, both of the pumps I have use a thick square section O ring “gasket” on
the bottom and a very thin fibre washer “gasket” on the top. I tried copper and
aluminum washers but none were small enough to fit into the machined groove
on the top of the pump, or tall enough to sit proud. All of the metal crush
washers I have are also too thick for the locating shoulder on the top of the
banjo bolt. This is the low pressure fitting. The problem is that the seal
relies on the compression of the gasket above the top of the pump. Once you
fully tighten the 1 inch hex, the banjo bottoms on the pump and you are done. I
fitted a round section O ring, but even I can see it is not the right thing.
There must be some balance to the top and bottom seal material or it wouldn’t
last. My guess is originally they were made of similar stuff. With a 0.810"
ID.

Paul

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In reply to a message from richard@porterfamily.org.uk sent Fri 20 Feb 2004:

keep in mind while power steering fluid is running across the floor
that ATF works too and costs 1/2. It is recommended in a 1960 Jag
manual that I have and the NAPA guy thought so too.
P–
Peter J. Smith, 1966 3.8S, 67 MGB
carson city nevada, United States
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Paul,
I’m a little slow with correspondance on this type of thing because I
only take the digest and spend all the spare time I can on my car.
I’ve opened up the low pressure side of my PAS to check what I did
to seal it. The black “o” ring is still in place, but compressed and
so useless. I’ve used plain 2 plain copper washers, inside diameter
21mm, outside diameter 25mm and thickness 1.5 mm. They are a
loose fit on the banjo and so need to be centralised as the bolt is
scrwewd in…but they work and don’t leak.

FWIW.

Kind regards,
Richard S-P

“There’s a fine line between a hobby and obsession”

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In reply to a message from richard@porterfamily.org.uk sent Mon 23 Feb 2004:

[The rubber ring that fits inside the groove is probably an O-ring
that has
conformed to the machined groove for a long time. A good hardware
store
will have an assortment of O-rings and you’ll be able to find the
right one.

Frank]

Frank, on my Mark IX I found a seal which is a combination metal
and O ring to place on each side of the various banjo bolt
fittings. I don’t know what they are called and it is so long ago
but I think I got them from a hydraulic hose company. I don’t know
where you live but I’m in Newcastle, Australia on the east coast.
I’m sure you would have companies that provide mobile hose repair
services and these are the ones to go to I would think.

I don’t recall there being any groove on my fittings but I have
recently removed the high pressure output hose from the pump and
reconnected it with the same seal and no leaks. I would expect
copper seals to be ok but you would have to anneal them first.

Regards

Peter–
MARK IX, E type, SI XJ Manual, MARK II, XJ40
newcastle new south wales, Australia
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