Thanks for your reply The Running Man! I definitely don't have that Toms airbox on my car, I know that because it was an absolute PITA to get it out and I had to remove the strut x-brace to get at it!!
Today has been a semi-productive day, in a nut shell, my new horns work, I replaced the fuel filter, air filter and the spark plugs.
Here is the long story:
(1) Removing the air box, resonator box and all attachments (before)
After:
(2) Clamping the bottom and top fuel hoses with a G-Clamp and Mole grips:
(3) Old and new fuel filters
I made the mistake of undoing the bracket bolts before undoing the bottom hose, it made my job a whole lot longer and I had to put the bracket bolts back in, until I cracked the bottom banjo bolt. The top bolt was almost as hard to crack and in both cases, only a trickle of fuel came out - either my tank was almost empty or I did a good job of clamping the rubber sections of the hoses with the G-Clamp and Mole grips. By this point, my mobile battery just died, but lasted long enough for me to do this:
(4) The first bodge of the day, bending the brackets on the new fuel filter so my banjo bolts and solid fuel pipes would fit. I was quite unhappy when I saw the pipe didn't fit as the hole cut outs were too narrow - so I thought, I'll just bend it. I could have sent it back and got another one, but at this point I was 2-3 hours in and my patience was wearing thin. I had already dropped the bottom banjo bolt and lost it four times, almost lost all the copper crush washers just as many times!! On a wet, cold and muddy garage floor
Then the fun job of putting it all back together arrived, I had a right old problem getting the pipe back in, to the point that I needed to remove the X-Strut brace. Luckily a very helpful neighbour saved me by getting me a can of coca cola and some home made rock cakes, I had not eaten since I got up and it was already 1:30 pm!
A few other photos taken earlier in the day:
(5) New Fram Air Filter and New Denso Spark plugs. Unfortunately, the Iridium spark plugs I wanted were out of stock, so I made do with these ones; knowing they'll need doing again in 20-30k miles:
(6) Old and new Air Filters compared, the new one looks larger, but that is a trick of the camera, it actually fits:
(7) Old Spark plugs, you can see the discolouration on the porcelain in the first two spark plugs and the re-gap on the third one when I dropped it a few days ago. What the photo doesn't show is some of the wear between the ground electrode and centre electrode. The centre electrodes are heavy with carbon fouling - probably due to idling and not doing anything else. But there wasn't any oil fouling on the spark plug, which is a good sign!
(8) Charged up my phone and was able to take pictures again yay! New horns and clips which arrived today:
(9) & (10) Current location of standard horns:
(11) & (12) New horns. The previous two photos show where I cable tied the horn cable to the body work. This was the second bodge of the day - I ended up extending the powered positive around the front of the car to the front trunk, where I had placed the two horns:
What I ended up doing was looking for two bolts on the body work inside the front trunk, which I found after managing to completely shear one off, oops and used the supplied horn brackets on these. The section where the spare wheel frame/holder bolts on to the chassis on the body work acted as a new earth as can be seen on photo # 11.
I was able to extend the positive wire using female and male spade connectors from the front of the car to inside the front trunk after finding a hole already there. The new earth was simply two of the old fuel filter washers with the wire coiled around them, quick, easy and functional. I don't have round connectors and at some point, I will replace the washer/bare wire connection on the earth with ring connectors once I have the measurements I need.
Not the prettiest of jobs but very functional at least, until a point when I have the time to drop the front bumper and take the old horns off, as it's the only way to get at the horns. If I hadn't spent so long on the fuel filter, I would have been able to drop the bumper today.
Going back to the fuel filter/air filter/spark plugs - I checked over everything and the engine is running nicely and there are no leaks from the fuel filter. I fastened the top and bottom 17 mm banjo bolts to 22 nm with my torque wrench as specified on various forums and how to guides so no way that's going to leak!
Just this lot left to do now:
1). Headlamp cowls and covers.
2). Removing all carpets on the inside of the car.
3). Changing Bomex scoops to standard bonnet panels.
4). Checking over entire brake system.
5). Check over wheel bearings and track rod ends.
6). Remove 'foam'.
7). Welding
8). Drop the front bumper and put the horns in the correct place.
Looks like the welding will be done on Saturday afternoon - I'm not looking forwards to cutting out the rusty bit of the sill (which measures like 1" by 1") and seeing what horrors lurk behind, but I want to do a proper job and patch/replace any parts that need doing before filling this cavity and the other sill with Dynax S-50.
All in all, a long, hard and terrible day for working on a car, but at least some jobs are done. I'll probably book the MoT for the next few weeks once the welding is completed. Using a mobile phone torch for doing work on a car is an eye strain and very time consuming...as well as good at killing batteries. I knew I should have got some sort of bar torch with a hook today!!