Hi,

I am about to start ( when I find a engine and manual gearbox) a transplant of a 4.0 litre AJ6 engine into a 1977 XJC, I have read up on this and it appears that all I need is XJS engine mounts and to swop the exhaust to the other side .

Has anyone on her actually done this, and are there any other problems I might encounter ?

Jim

 

I have to admit I like your style, Jim. This sounds like a true adventure!
Mind you, You seem to have the knack for it too!
Bless you in this bold adventure, I'll be keeping my eyes fixed on how you get on.
Godspeed and enjoy it, all the Best Jim, Stu

 

Jim,

You've certainly got the XJC back to basics. Looking forward to following your progress with this project.

Good luck.

Graham

 

Now that is the kind of engine upgrade I can relate to ! Keeps a Jaguar engine in the car and could be considered something Jaguar themselves would have done if the AJ6 had come along a lot earlier than it did. It certainly needed to, as the old XK lump was way past it even in the 70s.

Jaguar made a huge error of judgment with engines in the late 60s, by pursuing the V12 and not thinking about the engine they needed to fit in the majority of the cars. Of course this was the AJ6 first put into the XJS, but only really started to be used in quantity in the XJ40 of 1986, a decade too late, really.

 

I looked at the possibility of an aftermarket ECU, but the cost put me off, plus the time and problems to get it working, it seems that the ECU will cost at least £600 and you need a Rolling road tune, minimum £400 so that means £1000 before you start,
I emailed the two big manufacturers here in the UK , one never bothered to answer and the other gave a one line answer ' we could probably get that engine working with our ECU but not the auto gearbox' this to me means that if they are not interested when you are offering them money...well I dont feel you would get any support for their product afterwards, Plus when you go on their websites, it just seems to be people with problems. I emailed a guy on another forum who had tried the Megasquirt with a AJ16s and gave up ! Not a simple fix I fear


From Rich W on another forum: re AJ16 in series 2

What I was told is that it can take a 60 - 1 wheel fine, but ask
the code to figure out how many delay teeth there are to the crank
sensor and it doesn't like 0 or minus numbers, as it has to see a
number of teeth before the gap to provide a reference. I got told
with the 60 tooth wheel there needed to be around 10 teeth between
crank sensor and the missing tooth, and that for a 36 - 1 wheel it
would be 6 teeth.
I tried a number of ways, and it didn't work with the stock trigger
wheel. A friend has an AJ6 that didn't work with the 60 - 3 wheel
that engine has had the same issue. He put a 36 - 1 on it, set it
up as per the manuals, and it runs sweet as a nut.
And it will, no doubt. The most I had out for mine was a brief
cough but my knowledge of megasquirt systems wasn't sufficient to
sort it. I know now that the AJ16's toothed wheel has its missing
tooth at TDC, which the megasquirt system doesn't like... so an
aftermarket trigger wheel will likely crack it.
I then got a so called 'expert' to look mine over but he set all
the parameters up for a V8 XJR engine and the AJ16S went from a
cough to stone dead.
Like I said though, I know it can be done and I will try again at
some point. I wouldn't disssuade anyone from having a go if they
are more competant with aftermarket systems. I was using MS2 as it
handles the idle speed control of the AJ16 - though I had fitted an
XJS distributor as it kept the coil and meant no tacho modification
to the S1 or its wiring.
--

The ECU issue was security. The XJR has a chip in the ignition key,
which is read by the security module, and unless evrything checks
out with another module the ECU won't crank the engine or fire the
injectors. You can get round the cranking issue by wiring the
starter directly, but it still won't supply fuel.
I gave a 4.0 XJ40 15CU ECU a shot and it did run the engine, though
very badly. If there were anyone out there capable of modifying the
maps in these you could probably get it running well as it started
readily enough.
I then tried megasquirt, but the AJ16 didn't like it running with
the stock sensors and trigger wheel. By this time I had got
depressed with the whole thing - so fitted the 3.6 to give my car
some life back.

 

Well it took 2 years looking on EBAY... buy I finally found an engine.

I actually managed to get an AJ16 XJR car ( auto) with multiple 'issues' but a 'good ' engine.

I had already found a Getrag 290 so... off I go !

Thinking of using the X300 servo and brake pedal as it has provision for a clutch pedal.

Will the LSD from this car fit the XJC rear axle ?

Going to contact Andy and see if he can sort me an ECU ,try it in the car , then pull it out and fit it in the XJC

 

Use the six banger from a salvaged late 4.0 XJS. XJS was based on XJC and has similar dimension, wiring harnesses, A/C components, mounts, engine, transmission, rear diff will all fit. Guess how I know. What ever you pay extra up front for an XJS you will save 5x on the back end.

 

The axles are done and now fitted ready for the 'new ' engine now !

 

Bought a MOT failure XJR6 (at last) , for the engine , now researching how to get it to fit !

Also managed to find a Getrag 290 manual box ,

 

It would be nice if it looked like this when finished !!

Does anyone have any more photos of this car ?

Jim

 

Great project mr. The car is a ''Jaguar Lister XJ12 coupe''.

 

I've searched high and low for more pictures of this particular Lister XJ-C, but have come up with nothing so far. The original owner also had an XJ-S Lister Le Mans and had this XJ-C commissioned by Lister. It has quite a bit more work in it than other Lister XJ-Cs. It has had both the front and rear fenders widened, but still keeping the original swage lines (no easy task).

I remember it being in a UK car magazine article in the early yo mid-nineties, but can neither remember the mag or the month/year it was published.

The search continues...

 

As far as the exhaust, I am going to take the original center catalytic converter and flip it
up side and reconnect exhaust as needed. If I have lengthen or shorten, I will do on the engine side of the exhaust.

From Larry Louton. Who is co-writing a forum column with Dodgy about transplanting
a AJ16SC engine into a Series 3.

 

Well the engine is out

 

Ready for the Getrag

 

Gearbox mount made for Getrag 290

 

Engine in, with Getrag, For the first time...... of many I am sure

 

Making a cover for the gearbox ,

 

Which wheels ?<br/><br/><br/>I am fortunate enough to have a set of XJR6 an a set of XJR8 wheels ( my road car being scrapped ) <br/><br/>Which ones do you think, I fancy the rear ones in black, the car is Green, no bumpers yet but fancy black ones

 

Black is Always a good choice.
(';')