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

Ser III XJ6 to V12 project

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  #21  
Old 09-28-2015, 09:41 AM
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Originally Posted by o1xjr
This looks like good project, I will follow with interest.
What he said !


Don't be shy with the pictures too !
 
  #22  
Old 09-30-2015, 07:53 AM
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A very interesting project there, Doug, I am watching with interest.
 
  #23  
Old 09-30-2015, 09:50 AM
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Yeah, a beautiful working space, engine coming out on a "cherry picker"'


Gotta have LnrB class pctures and narrative...


Carl.
 
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  #24  
Old 09-30-2015, 12:58 PM
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I always intend to take more pictures....then forget. I'll try to do better although, in all honesty, I doubt that pictures I take will be anything that hasn't already been seen 100 times over the years


Cheers
DD
 
  #25  
Old 10-16-2015, 10:26 PM
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Ok, just to let you know that I haven't been sitting on my hands I've attached a pic of the project. It's actually in the shop, hood removed, and I'm starting to disassemble 'stuff' in preparation for pulling the engine


cheers
DD
 
Attached Thumbnails Ser III XJ6 to V12 project-white-xj6.jpg  
  #26  
Old 10-23-2015, 09:22 PM
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Still progressing....
 
Attached Thumbnails Ser III XJ6 to V12 project-engine-out-1.jpg   Ser III XJ6 to V12 project-engine-out-2.jpg  
  #27  
Old 10-24-2015, 09:41 PM
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Doug,

Awesome project. I know it's in good hands. Are the wheels in the last pictures the Lattice wheels you mentioned earlier? They look good.

Thanks for sharing,

Eric
 
  #28  
Old 10-24-2015, 09:47 PM
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Originally Posted by ronin
Are the wheels in the last pictures the Lattice wheels you mentioned earlier? They look good.

Thanks for sharing,
Yes, thanks, and you're welcome


I meant to mention that, when pulling the engine, I inadvertently left just *one* item connected. A heater hose. That's a record for me. Usually I find that I've left two or three !

Cheers
DD
 
  #29  
Old 10-30-2015, 07:28 PM
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Wow just found this, great project.

I have been looking for S3 V12 and they are thin on the ground here in Australia, I have a spare 6.0L V12 (although in bits ATM), you may have inspired me.
 
  #30  
Old 11-01-2015, 03:28 PM
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Very cool project. What's up with the Ferrari 550 (or 575?) in the first pic??
 
  #31  
Old 11-01-2015, 05:52 PM
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Originally Posted by Flint Ironstag
Very cool project. What's up with the Ferrari 550 (or 575?) in the first pic??

550 Maranello.

Alternator repair....which is about as far as I go on modern-ish Ferraris.

Very nice car. Quite fast, very comfy, a pleasure to drive, built like a tank. Lacks the 'wow' of the boy racer type Ferraris but I'd own one in a minute. Still reasonably priced on the used car market, too....at least for the time being.

Cheers
DD
 
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  #32  
Old 12-05-2015, 11:27 AM
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Default V12 wiring harness

Still making incremental progress. Bit by bit I'm checking items off the list.

Most recently I removed the 6-cyl fuel injection harness and installed the V12 harness...the latter being monumentally larger and more complicated than the former!

Removing/installing the harness is a fair bit of work. From the trunk/boot the harness travels forward into the cabin, downward toward the floor, and then snakes thru a blind tunnel where the rear seat cushion sits. On exiting the tunnel it travels forward along the transmission/driveline hump and eventually exits the cabin, and enters the engine bay, via a hole that is located just below the level of the battery tray.

The task involves pulling back several sections of glued-down carpeting...which is no big deal. However, the harness resides beneath several long sections of heavy sound-proofing ....also glued down. *Very* glued-down. It broke my heart but I had to slice thru the sound proofing to extract the harness. I'll use tape and glue to sorta restore everything back to original form and function but, naturally, a person hates being destructive. In this case, though, there was no other way. The glue was simply too strong and wouldn't let me carefully pull the sound proofing away from the floor.

The old harness pulled thru the blind tunnel easily but installing the V12 harness was a difficult. The ECU connector is about 6" long and slides thru the exit hole of the tunnel only if positioned at exactly the correct angle. After more than an hour of frustration I finally threw in the towel and used my Dremel tool to enlarge the exit hole.....and was then able to snake the harness through in about 9 seconds.

Prior to all of this I re-taped most of the harness and repaired any obvious faults. Much of the harness had rotten cloth covering which turned to dust when touched. Using Scapa cloth electrical tape gives a very nice appearing result, looking less cheapo than the usual black vinyl electrical tape

http://towzatronics.com/wp-content/u...Cloth-Tape.jpg

Mopar Dodge Plymouth Wiring Harness Black Cloth Automotive Electrical Tape | eBay

So far I've found only one circuit....fuel pump....that is significantly different between 6-and-12 cylinder applications but it'll be an easy matter to change.

Cheers
DD
 
Attached Thumbnails Ser III XJ6 to V12 project-v12-harness-install.jpg  

Last edited by Doug; 12-05-2015 at 01:00 PM.
  #33  
Old 12-05-2015, 11:46 AM
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Fascinating, Doug!
(';')
 
  #34  
Old 12-05-2015, 12:50 PM
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Yup!!!


I was in that area when doing my lumping. As a lot of that wasn't needed, that part of the Jaguar harness is till riding around.
Main difference: The Jaguar ECU is n the boot. The GM PCM
is in the engine bay.


That opening under the battery tray was/is a challenge. but, I managed.


The one/s in the tunnel: Lost that one. Wired around those. It works.


Even the Trip computer!!! Given odd input, it's output is odd!


The passenger cheek panel and scuttle are open at present.
Speedo wire redo? In the spring!!


Glorious recollection: It fired! Open exhaust. Yoweee.


Just had an interesting discussion with the Shop Foreman of a SMOG shop. They have political issues as well.....


Carl
 
  #35  
Old 12-06-2015, 10:45 AM
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Hi Doug,


I'm following your project. I'm wondering what you said about 8000$.... it's going to be enough? LOL, I almost went 20x over of my initial budged.


Debbie
 
  #36  
Old 12-06-2015, 11:26 AM
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I'm still tracking on budget....but it's too soon to tell how long that will last

I really AM sticking to my initial plan of replacing only what needs to be replaced.

Cheers
DD
 
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  #37  
Old 02-02-2016, 07:32 AM
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Just so you won't think I've been sitting on my hands this whole time here a pic of the just-installed engine.


Cheers
DD
 
Attached Thumbnails Ser III XJ6 to V12 project-engine-.jpg  
  #38  
Old 02-02-2016, 09:49 AM
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That looks Much better!
There's nothing quite so forlorn as an engineless car, stripped of its dignity for all the world to see.

They feel so Exposed!
(';')
 
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  #39  
Old 02-02-2016, 09:31 PM
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Looks like its coming along nicely

Are the engine mounts the same on the 6 and 12?
 
  #40  
Old 02-02-2016, 11:11 PM
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Originally Posted by TheWarlock
Looks like its coming along nicely

Are the engine mounts the same on the 6 and 12?
Nope.

The mounts themselves, and the mount brackets, are V12 specific. Fortunately the brackets use the existing holes in the sub-frame so the basic installation is indeed a 'bolt in'

Cheers
DD
 


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