Resue
Well done, great stuff! Full service on the dizzy before toy put the manifolds back, When you do the injector hoses, also renew the "two lfexible, one steel" composite hose from the B bank fuel regulator to the fuel cooler. This is a sod to wriggle out, manifolds on the car. Just carefully cut the ferrules and replace the rubber parts with clips instead. They are barbed fittings under the ferrules.
If I were you I would renew the twin coils as well, these are not expensive. Remember to get only OEM ones, they have a far lower resistance than seemingly identical non-V12 ones, post here if you are not sure. the resistance must be about 0.7 ohms. A high resistance will screw the amp - which if cash is available you should also renew - and put the old one in the boot as a spare. .

 

Dem der byes from da rock der. Lord thunderin' jesus.

 

lol that's the Nova Scotia flag not not a newfie lol.

 

I hear ya about that hose. I had to cut it free from the cooler.

Didnt think about renewing the coils.

Also which is the correct gaskets for the tb. Search seems there is 2 styles.



Th

Should I take off the ends of the manifolds and replace the gaskets there? The deceleration valve areas. What do they do exactly?




finally thing. So the intake gaskets I have one piece wheres as the factory ones I received are all individuals. I've read people cutting the one piece up. Is it just because it's harder to install the one piece?

I leave today so I'll have all week to figure out my next order of parts.

 

You need the top TB gasket in your post for the joint between the TB and the actual manifold casting. I think the next is for the joint between the air cleaner box and the TB, number 3 in this diagram:
https://parts.jaguarlandroverclassic.../brand/jaguar/
The two ringed in blue are for the overrun valves body (at one end of the manifold) and the spigot/balance pipe body, at the other. Neither of these do not need to touch at all. You do not need to undo anything bolted onto the ends of manifold body.

 

Ok thanks.

 

EBC9635 throttle body gasket is correct for a V12 . I think the EAC9822 is for the 6 cylinder cars

I've cut apart the one piece intake gaskets for ease of installation.

Cheers
DD

 

Rescue, see amended post, the second one is for the air cleaner TB joint, I think.

 

What you're hearing is the insulation breaking apart, leaving the wire strands exposed. It's a bit cringe inducing, isn't it?

Your engine bay will have lots of wiring in this condition which need to be clipped off and replaced. Often you can go back into the looms and find some softer, non-baked, non-crispy sections of wire to work with. Now get out your soldering iron......

My harness is so full of these repaired sections it's the equivalent of a quilt. I'm really becoming tempted to pull all the looms, lay 'em on the bench, and start from scratch.

Cheers
DD

 

Haha yes it is. Almost every wire sections I've touched seems to have a little crackle sound to it. But all the connectors I've taken apart are in good condition with no signs of corrosion.

at least I'm good at soldering from my RC experience lol

 

They're basically dump valves that prevent manifold vacuum from getting too high on "the overrun"---coasting with the throttle closed. The absolute necessity of having them has been debated. It's pretty common to eliminate them.

Cheers
DD

 

Interesting. I wonder what others have to say on this.

 

Ack I'll take a look at the back of the air boxes. Must be stuck on them.

 

Back from work. 3 weeks before I'm gone for another 3.

So bought some cleaning stuff so gonna work.on cleaning up the V area before remove the spark plugs.


Question about the coil.

I thought I had the dual cool system but I can't find the smaller square 2nd one. unless it's hidden somewhere else I'm sure I just have the one coil then.

Anyone confirm or know the exact location of the 2nd one. I thought front of engine but nothing

 

Rescue
If you have the twin coil system still, they are both round ones, and the second one is in front of the radiator stack on the apron behind the grille.

 

Ok well good thing I removed all that. Just looked and don't see anything so single coil for me.

 

Rescue
If you have the single coil setup, it should be the square one only, fixed to the throttle tower. If you have just a round coil there, and no second one, then it needs to be replaced by the square type. A single round coil cannot regenerate the spark fast enough to fire reliably over 3,500 rpm. Similarly, the square replacement must be the Jaguar one, or compatible one, not just any one that looks the same.

 

See why I'm confused. I have a single system. The round one



It's a March 1988 build date. Still Lucas.

 

Well the connections are there to parallel the second coil..

 

I followed the connections that where there. They don't go to a 2nd coil.

When did they go to a single one?