XJ6 & XJ12 Series I, II & III 1968-1992

Ignition Light Remains On

 
  #21  
Old 07-04-2019, 08:18 PM
LT1 jaguar's Avatar
Member
Join Date: Dec 2018
Location: Wasilla,Alaska
Posts: 77
Received 18 Likes on 13 Posts
Default

Hi Carl,
I was a furniture maker for a number of years and have had to learn how to fiddle with adjustments. If your bandsaw is "tossing blades", I would first look at the rubber belts on the circumference of each wheel. Much use will flatten these belts and make centering the blade mostly wishful thinking. If these still have a slight crown on them, I would find the tilt adjustment on the top wheel (not familiar with yours, but most have a finger-wheel or small crank or set screw/locknut) and adjust it one way or the other while turning--BY HAND!--the wheels connected with a lightly tensioned blade. You should be able to center the blade on the rubber belts unless the wheels are grossly misaligned or something is bent. Once the blade stays centered, bring the back rub-block to just touch the back of the blade and then the side blocks up to just touch the sides of the blade. You can almost always get a better and closer fit of the blocks by stoning/honing the weld on the sides and the back. Use a good quality blade lube, I use Lennox brand. Ceramic blocks are the "cats meow", last forever and don't heat up.
Dave
 
  #22  
Old 07-04-2019, 08:39 PM
Veteran Member
Join Date: Mar 2008
Location: Pacific Northwest USA
Posts: 20,147
Received 6,547 Likes on 4,859 Posts
Default

Originally Posted by Gismo View Post
Thanks for all the advice. Iíll focus on the alternator wiring first. I remain optimistic that itís a warning light issue rather than an alternator issue but on the other hand I know next to nothing!

Look closely for any sign that the wire is touching ground in any way......such as insulation broken off (common) and the bare wire touching part of the engine or body.

The warning light has 12V "+" on one side whenever the key is 'on'. The bulb won't glow, of course, unless a ground (12V "-") is provided.

The ground comes from the alternator itself. When the charging actually begins, it is replaced by 12V "+". At that point the bulb has 12V "+" on both sides and extinguishes.

Cheers
DD
 
The following users liked this post:
LT1 jaguar (07-04-2019)
  #23  
Old 07-05-2019, 08:12 AM
Member
Thread Starter
Join Date: Aug 2018
Location: Quebec
Posts: 58
Likes: 0
Received 11 Likes on 5 Posts
Default

Thanks Doug. This is very helpful as always.
 
  #24  
Old 07-05-2019, 11:40 AM
Veteran Member
Join Date: Jul 2012
Location: Walnut Creek, California
Posts: 5,730
Received 1,945 Likes on 1,569 Posts
Default

Dave:

Way off topic. but a bunch of thanks. My "Chinese" Delta is probably far more primitive than the unts you used as a professional.

On this device, the back rub block is a bearing ! The side to the back of the blade. Very counter intuitive, till another lister told me that is the way it is. had it working fine, for a while!

The side blocks are wood!!! I was told that was OK. probably for DIY, but not so much for a pro.

Aye, I discovered the top wheel tilt adjustment. fixed the first effort,

Tires on he wheels? gotta look again. Well, the first effort found them present and smooth. No, I will check for a crown. I suspect that they are flat

Blade lube!! News !! Although, the thought came to me. I tried a semis soft hand soap. It seemed to work and I got some cuts made.

If the rubber on the wheels is gone, the machine is as well.

I'll try some more using your experience as a guide...

Again, thanks.

Apologies for the hihjack !1

Carl..
 
  #25  
Old 07-05-2019, 12:21 PM
LT1 jaguar's Avatar
Member
Join Date: Dec 2018
Location: Wasilla,Alaska
Posts: 77
Received 18 Likes on 13 Posts
Default

PM sent.
Dave
 
  #26  
Old 07-06-2019, 07:29 PM
Member
Thread Starter
Join Date: Aug 2018
Location: Quebec
Posts: 58
Likes: 0
Received 11 Likes on 5 Posts
Default

So I disconnected the warning light wire, cleaned the contact and reattached it. Still, getting the light. But I noticed that when I started and ran the car with the warning light wire disconnected the ignition light still remained on. If I understand Dougís explanation correctly that should not happen since the warning light should not be grounded if the wire is disconnected. However if the wire is grounded elsewhere then the light will still light even with the wire disconnected. Correct? So Iím assuming that somewhere between the alternator and the warning light thereís a short. I can only trace the wire to the front of the block at which point it is joined by a wire off the a/c and then gets lost in a bundle running along the cam shaft cover on the passenger side (right) of the car. See picture.

Alternator warning light wire (coming in from the right) joining up with a/c wire.

__________________
 
  #27  
Old 07-06-2019, 08:15 PM
Veteran Member
Join Date: Mar 2008
Location: Pacific Northwest USA
Posts: 20,147
Received 6,547 Likes on 4,859 Posts
Default

The wires get very brittle and beat up as they cross the front of the engine. That's probably where the fault is. Keep digging...and be prepared to repair others as you go or at least tape them up. The insulation will probably crack off just from handling the wires

Or......

Run a new wire from the alternator to a known-good section of wire elsewhere, abandoning the existing wire as it crosses the front of the engine. The wire (as well as compressor wires) goes across the front of the engine then drops down behind the p/steering pump (roughly speaking) and then crosses over to a square-ish multi-connector on the RH fender well, down low. The loom picks up the oil pressure wires along the way. The wiring is probably sound at the multi-connector (as it doesn't get quite so hot there) so it would be a good place to splice-in your new alternator wire

Cheers
DD
 
  #28  
Old 07-06-2019, 08:45 PM
Member
Thread Starter
Join Date: Aug 2018
Location: Quebec
Posts: 58
Likes: 0
Received 11 Likes on 5 Posts
Default

Thanks Again Doug. I’m always worried that in trying to fix one thing I’m going to screw up something else! I think it’s worth trying a temporary bypass to see if it solves the problem before tearing into the original wiring harness. Can you tell me what gauge wire I should use and where I might buy some? And should the warning light wire still be brown with a black tracer at the multiconnector? I’m assuming yes.
 
  #29  
Old 07-06-2019, 09:35 PM
Veteran Member
Join Date: Mar 2008
Location: Pacific Northwest USA
Posts: 20,147
Received 6,547 Likes on 4,859 Posts
Default

Originally Posted by Gismo View Post
Thanks Again Doug. I’m always worried that in trying to fix one thing I’m going to screw up something else!
Don't worry too much about that. We all try to avoid it but, hey, it happens.

Can you tell me what gauge wire I should use and where I might buy some?
I think the original is rather thin, probably 18 gauge. Buy 16 gauge, it'll work fine and be more useful elsewhere in the future....considering that you'll probably have to buy 15 or 20 feet of in a bubble pack. About $7-8 at any auto parts store

And should the warning light wire still be brown with a black tracer at the multiconnector? I’m assuming yes.
Yes

But multi-color wire is not commonly stocked at local outlets. You'll have to choose solid color.

Cheers
DD
 
  #30  
Old 07-06-2019, 09:42 PM
Member
Thread Starter
Join Date: Aug 2018
Location: Quebec
Posts: 58
Likes: 0
Received 11 Likes on 5 Posts
Default

Thanks again. I’ll keep you posted.
 
  #31  
Old 07-08-2019, 06:26 AM
yachtmanbuttson's Avatar
Senior Member
Join Date: Jun 2016
Location: Palm City, Florida
Posts: 592
Received 71 Likes on 51 Posts
Default

And then if you can, update your wiring schematic with the new color.
 
  #32  
Old 07-08-2019, 11:47 AM
Veteran Member
Join Date: Jul 2012
Location: Walnut Creek, California
Posts: 5,730
Received 1,945 Likes on 1,569 Posts
Default

A couple of decades ago, I got a selection of colored wire on spools and a rack to store them. Harbor Freight. Might not be top grade insulation. but, I've used them a lot and so far no issues.

My lump and I went on errands. Tanked up with fresh fuel. Brake light bulb replaced. Purred....

Carl
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
WAFlowers
XK8 / XKR ( X100 )
9
05-12-2017 05:17 PM
Jaguar Forums Editor
Off Topic
0
08-26-2016 05:28 PM
Jaguar Forums Editor
Jaguar Press release
0
09-30-2015 03:08 PM
gidijaguar
XK8 / XKR ( X100 )
3
06-02-2014 04:09 AM
jeffreyli86
XJ XJ8 / XJR ( X308 )
4
05-26-2011 12:51 AM

Currently Active Users Viewing This Thread: 2 (0 members and 2 guests)
 

Thread Tools
Search this Thread
Quick Reply: Ignition Light Remains On


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: