[xj-s] door lock problem

XJ-S
1

The passenger door lock only turns clockwise with the key in
it. Is that normal? the driver’s side turns bothways:
Clockwise to lock and counter clockwise to unlock. Has
anyone taken apart these lock cylinders?–
1984 XJS, LT1/T-56
Lafayette, Colorado, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

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2

At 05:51 AM 20/02/11, you wrote:>The passenger door lock only turns clockwise with the key in

it. Is that normal? the driver’s side turns bothways:
Clockwise to lock and counter clockwise to unlock. Has
anyone taken apart these lock cylinders?

1984 XJS, LT1/T-56
Lafayette, Colorado, United States

This might be your lucky day.
Had exact same problem on convertible driver’s door 4 weeks ago,
which is your passenger door.
The key had always been hard to turn ACW, but easy to turn CW.

Took off the door trim which is always a painful job trying to avoid damage.
The usual 1 hour plus effort, did not help.

Took off the 4 screws holding the door latch, found a roll pin in the
mechanism had drifted out and was jamming on the door skin.
That is a 5 minute job to remove, tap the pin back, refit the latch.
Just mark it carefully first so you get it back exactly as before.
The retaining plate behind the door skin needs manipulating to line up
but not too difficult.

Of course you might not be so lucky, and then have to take off the trim.

Holy sh*t, this is early Sunday morning in summer and the sun is actually shining.
Unprecedented in this miserably wet, cyclone prone, flooded out summer.

There is a Jaguar Club run today, forecast is showers clearing ( maybe ) later.
For once the convertible looks like getting used for a decent long run, so here we go.

Richard Dowling, Melbourne, Australia.
1979 XJ-S coupe + HE V12 + 5 speed, 1988 XJ-S V12 convertible, 2003 XJ350 3.5L V8

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3

In reply to a message from Richard Dowling sent Sat 19 Feb 2011:

That may have been the problem initially. I think it was
jammed and then the key drove the wafers into the pot metal
within the cylinder and the rod that retains the springs,
broke loose and the springs popped out a bit and were jammed
into the sliding mechanism.

I know these aren’t really designed to be rebuilt. The
manual basically tells you how to take it apart and then
says to replace it. Whatever.

I had to break it all the way down to the cylinder, springs,
and wafers. Some of the brass wafers needed straightened
out, a locksmith sold me a set of springs from a Toyota.
Basic assembly order:

  1. The plates go in in the correct order so that when the
    key is in, they are flush with the cylinder.

  2. The spring go in next on top of the wafers.

  3. The rod goes on top of the springs, and is secured by
    crushing the pot metal around it. I used JB Weld to replace
    some of the degraded pot metal.

  4. Once this is done, the o-ring goes around the cylinder.

  5. The cylinder goes through the door handle.

  6. A wavy spring that restrains motion of the cylinder goes
    around it, the orientation I am not sure yet.

  7. The cylinder slides into the the ‘‘arm’’ receptacle that
    pushes/pulls the door rods. A retaining slat piece of metal
    (that has a partial notch in it) is slid back through a slot
    in the ‘‘arm’’ to secure the cylinder in place. I suspect some
    of the metal by the slot is crushed to keep it in place. A
    dab of epoxy or JB weld would suffice.

Numbers on the door panel.–
1984 XJS, LT1/T-56
Lafayette, Colorado, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php –

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