[xk] Dead electric on XK150 - help please!

Had used the car without issue - went to move it into garage -
ignition on - hit the starter button - click and ignition went off.
Tried a few more times and then ignition would not even come on.
Now I have nothing working - everything on the dashboard is
effectively dead. Tested starter solenoid and that functions
correctly off the car. Disconnected starter and that makes no
difference.

I now have power at one terminal of the regulator (right hand one),
at only the extreme right screw connector plus in and out of only
one of 6 fuses (second from the left) - that going to the cigar
lighter. All fuses are okay. Battery is fine - good charge and not
discharging. Nothing appears hot indicating a short.

Wiring is difficult to follow as the orginal loom was used in the
restoration 20 years ago and almost impossible to follow colours.
Nothing has been done to the car for years other than normal
servicing, gets driven every couple of months and has behaved
perfectly.

Car electrics are my weak point when it comes to fixing cars so any
help or advice would be appreciated. I have no idea where to look
next or how to check other components.

Thanks

Geoff–
Geoff Sparkes
Auckland, New Zealand
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

Hi Geoff,

You don’t say what year your car is but looking at the wiring diagram for a
1957 car there is a thick cable from the battery negative terminal to one
terminal of the starter solenoid. This terminal should also have two brown
cables connected to it… One feeds a fuse that supplies the cigar lighter
which you say is working. This fuse also feeds the interior lamp(s) so these
should be working as well. The other brown cable goes to the ammeter through
which just about all the other circuits run except the clock.

I would start by making sure that the connections to the starter solenoid
are clean and tight and then have a look at the back of the ammeter to do
the same. For safety’s sake disconnect the battery ground when doing these
checks as it is very easy to short out a live feed to ground with a spanner
(or the metal bracelet of a watch). Also, check that the battery ground
connections are good and also the separate engine ground.

There can’t be much wrong here so it should be quite easy to find the
trouble. If you don’t have a voltmeter, a car bulb on flying leads is a good
test lamp and in some ways better than today’s digital meters which don’t
necessarily reveal high resistance connections because they draw so little
current.

Tell us what you find if the above does not sort out the problem for further
suggestions.

Eric
Church Stretton, UK----- Original Message -----
From: “Geoff Sparkes” geoff.sparkes@internet.co.nz
To: xk@jag-lovers.org
Sent: Monday, May 30, 2011 9:39 AM
Subject: [xk] Dead electric on XK150 - help please!

Had used the car without issue - went to move it into garage -
ignition on - hit the starter button - click and ignition went off.
Tried a few more times and then ignition would not even come on.
Now I have nothing working - everything on the dashboard is
effectively dead. Tested starter solenoid and that functions
correctly off the car. Disconnected starter and that makes no
difference.

I now have power at one terminal of the regulator (right hand one),
at only the extreme right screw connector plus in and out of only
one of 6 fuses (second from the left) - that going to the cigar
lighter. All fuses are okay. Battery is fine - good charge and not
discharging. Nothing appears hot indicating a short.

Wiring is difficult to follow as the orginal loom was used in the
restoration 20 years ago and almost impossible to follow colours.
Nothing has been done to the car for years other than normal
servicing, gets driven every couple of months and has behaved
perfectly.

Car electrics are my weak point when it comes to fixing cars so any
help or advice would be appreciated. I have no idea where to look
next or how to check other components.

Thanks

Geoff


Geoff Sparkes
Auckland, New Zealand
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

In reply to a message from Geoff Sparkes sent Mon 30 May 2011:

Geoff I answered your question on the JCNA forum.–
The original message included these comments:

Had used the car without issue - went to move it into garage -
ignition on - hit the starter button - click and ignition went off.


JCRC SE member JCNA Publications and Authenticity Desk
Columbia SC, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

George,

Would you be willing to share your thoughts with those of us who do not read
the JCNA forum?

Eric
Church Stretton, UK----- Original Message -----
From: “George Camp” scjag@juno.com
To: xk@jag-lovers.org
Sent: Monday, May 30, 2011 12:49 PM
Subject: Re: [xk] Dead electric on XK150 - help please!

In reply to a message from Geoff Sparkes sent Mon 30 May 2011:

Geoff I answered your question on the JCNA forum.

The original message included these comments:

Had used the car without issue - went to move it into garage -
ignition on - hit the starter button - click and ignition went off.


JCRC SE member JCNA Publications and Authenticity Desk
Columbia SC, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

In reply to a message from Eric Capron sent Mon 30 May 2011:

Eric you can go there and read them.–
The original message included these comments:

Would you be willing to share your thoughts with those of us who do not read


JCRC SE member JCNA Publications and Authenticity Desk
Columbia SC, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

George,

Thank you for your response. I know that I can do as you suggest. I do not
wish to fall out with you but I can only assume that the reason that you
posted only a reference to an answer on another forum rather than the answer
itself is that you wish to promote that other forum.

I have no problem whatsoever with JCNA or its forum but I do not think that
it is helpful simply to use this list as a means to promote it. I do not
believe that that is what this list is for and would very politely ask you
not to do it.

If I have misunderstood your reasons for not posting the actual answer on
this list then I will happily apologise but at the moment I can’t see any
other purpose in your reply.

Eric
Church Stretton, UK----- Original Message -----
From: “George Camp” scjag@juno.com
To: xk@jag-lovers.org
Sent: Monday, May 30, 2011 2:01 PM
Subject: Re: [xk] Dead electric on XK150 - help please!

In reply to a message from Eric Capron sent Mon 30 May 2011:

Eric you can go there and read them.

The original message included these comments:

Would you be willing to share your thoughts with those of us who do not
read


JCRC SE member JCNA Publications and Authenticity Desk
Columbia SC, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

Hi George
In line with your concise replies to Geoff and Eric, will you also be
posting your long awaited conclusions on the engine noise source/s in the
JCNA annals?

Thanks for your time

Klaus W. Nielsen

812394
815666BW-----Original Message-----
From: owner-xk@jag-lovers.org [mailto:owner-xk@jag-lovers.org] On Behalf Of
George Camp
Sent: Monday, May 30, 2011 9:02 AM
To: xk@jag-lovers.org
Subject: Re: [xk] Dead electric on XK150 - help please!

In reply to a message from Eric Capron sent Mon 30 May 2011:

Eric you can go there and read them.

The original message included these comments:

Would you be willing to share your thoughts with those of us who do not
read


JCRC SE member JCNA Publications and Authenticity Desk
Columbia SC, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

In reply to a message from Geoff Sparkes sent Mon 30 May 2011:

Geoff
I had a similar issue with my E-type. When I turned the
ignition on, I had nothing, yet I still had power to those
functions not controlled by the ignition switch. I thought
the switch had gone bad, but when I dropped the dash down, I
noticed a wire had come loose. Reattached the wire, and
everything was fine. Disconnect the battery, and pull off
your dash panel to check for any loose or disconnected
wires. The one thing you want to be cautious of now, is if
you have a loose hot wire behind your dash, it could cause a
fire.
Joel–
ex jag, '66 E-type S1 4.2, '56 XK140dhc, '97 XJ-6
Denison, TX, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

Geoff,
Joel describes my experience exactly. Start at the ignition switch.
All the best,
Knight----- Original Message ----
From: ex jag jcrprops@sbcglobal.net
To: xk@jag-lovers.org
Sent: Mon, May 30, 2011 11:32:31 AM
Subject: Re: [xk] Dead electric on XK150 - help please!

In reply to a message from Geoff Sparkes sent Mon 30 May 2011:

Geoff
I had a similar issue with my E-type. When I turned the
ignition on, I had nothing, yet I still had power to those
functions not controlled by the ignition switch. I thought
the switch had gone bad, but when I dropped the dash down, I
noticed a wire had come loose. Reattached the wire, and
everything was fine. Disconnect the battery, and pull off
your dash panel to check for any loose or disconnected
wires. The one thing you want to be cautious of now, is if
you have a loose hot wire behind your dash, it could cause a
fire.
Joel

ex jag, '66 E-type S1 4.2, '56 XK140dhc, '97 XJ-6
Denison, TX, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

In reply to a message from Eric Capron sent Mon 30 May 2011:

Really bad assumption–I just do not want to type it all again!
Period. I accept your sorry–simply put the post was done on the
JCNA site then here–I am trying to help someone–what is your
reason for all of this–I am pretty sure since he is in Australia
he will not be joining a club in North America.–
The original message included these comments:

wish to fall out with you but I can only assume that the reason that you
posted only a reference to an answer on another forum rather than the answer
itself is that you wish to promote that other forum.


JCRC SE member JCNA Publications and Authenticity Desk
Columbia SC, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

In reply to a message from Klaus Nielsen sent Mon 30 May 2011:

Klaus --I was posting today. In fact it was a rod bearing but it
spun and deposited material in the oil hole–hence good pressure.
It spun #2 which is common but the noise was odd as it seems the
bearing would spin a bit then work (sort of) and my guess is that
is why the noise would come and go and at times be regular and
irregular at other times. The odd part is it sure sounded like a
noise from the head but when I went back to it it was clearly from
below. Old ears I guess but that is the culprit–It is the oddest
bearing spin I have seen–normally they overlap but this one did
not! Hope that helps–
The original message included these comments:

In line with your concise replies to Geoff and Eric, will you also be
posting your long awaited conclusions on the engine noise source/s in the
JCNA annals?


JCRC SE member JCNA Publications and Authenticity Desk
Columbia SC, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

Geoff,

I have had the exact same thing happen in the past and it was simply a bad
connection at the battery(ies).
You might even find a glaze of corrosion on the battery terminals that
needs to be scraped off for better conductivity.

Try it.

John Brady
678462
Bedford, MA

In reply to a message from Geoff Sparkes sent Mon 30 May 2011:

Thanks everyone. Problem fixed.

This is an April 1960 car with the later wiring (and I’ve only just
found the post Jan 1960 wiring diagram) which feeds the ignition
directly via a brown and blue wire from the ammeter. Although
these were all still connected and appeared tight, the old wires
just weren’t making contact on the ammeter end, even though it was
on the side fed from the battery. Cleaned and tightened and
everything is fine again.

A problem I suppose of still having the original wiring loom. Time
to give all the contacts a clean and tighten while the dash is
hanging off!

Again, many thanks for the suggestions.

Regards

Geoff–
Geoff Sparkes
Auckland, New Zealand
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

Hi Geoff,
I have a very basic suggestion: over 40+ years of XK ownership, the most
common solution to your symptoms has been very simple: dud batteries. In the
old days I did all sorts of things, sure than the batteries were really OK,
even changed the solenoid. Again it happened very recently on the 150 - when
I was sure the batteries had been absolutely fine always. But, yet again it
was the damn batteries. Replaced them. Car starts first hit.
So do not assume your batteries are OK is my suggestion - I know you said
you are a sure they are OK!
Kind regards,
John Elmgreen
Jaguar XK Motoring Historian
Sydney, Australia
Co-author of: The Jaguar XK120 in the Southern Hemisphere
www.jtpublications.com.au

In reply to a message from Geoff Sparkes sent Mon 30 May 2011:

may I suggest that posting help solutions to THIS FORUM…allows
the advice to be found in the archives HERE…when doing a search
for key words and topics, thus aiding those looking for such
solutions.–
Nick 53 XK120 OTS
near SpokaneWA, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php

In reply to a message from Nick 53 XK120 OTS sent Tue 31 May 2011:

Nick I would agree with you but as the forums go on and on with a
lot of off topic stuff as well as really poor advise they are in
fact so corrupt they are almost useless. The Xk forum is a bit
better than most but still corrupt. It is my understanding that the
future software will correct this. It is a shame as there is a lot
of good information in the archives but when you search you must
already know the answer in able to weed out all of the poor
answers. The forum is just a means of communication and in this
case it was cross posted by someone so I just directed them to the
area where a rather long answer had been posted–turns out it was
the correct answer even if the secondary area!–
The original message included these comments:

may I suggest that posting help solutions to THIS FORUM…allows
the advice to be found in the archives HERE…when doing a search
for key words and topics, thus aiding those looking for such
solutions.


JCRC SE member JCNA Publications and Authenticity Desk
Columbia SC, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–
–Support Jag-lovers - Donate at http://www.jag-lovers.org/donate04.php