I just bought a front spoiler for my 86 off a forum member. Could someone send me a pic of install position. I haven't had one since I bought the car and it is so distorted that nothing lines up. I'm having the crack repaired today and would like to install asap. thanks

 

You sort of have to manhandle it into position. they warp really easily, but you can just bend and screw as you go. I can take some pics of mine this week when I've got the front end in the air, but you shouldn't need them. just bend to for the pre drilled holes. I believe some of the holes from newer spoilers don't line up on older cars, but there should be enough that do for a sturdy mounting. If you're nervous, you could probably warm the spoiler with a heat gun.

 

Pics here, but you MUST have the tray behind it as well, otherwise it will do no good and also will not be braced enough to stay in place. The tray fixes to the bottom of the air dam and also to the wheelarch baffles and the cross member. The dam top edge screws up with self tappers going into clips behind the body panels and to the bottom of the lower grill. These holes should be there, both on the dam and the body panels and match up. All together the dam and the tray significantly help high speed stability.
Greg

 

Thanks for the info. I don't have the tray and didn't know I needed it. That makes sense after seeing it. That sucks!
Does anyone have a tray they want to sell?

 

Greg,

I really like the simplicity and light weight of your front bumper. The difference between yours and, what we have in the U.S. is very evident in that 1st photo.

The BRG oil pan is pretty cool too.

 

Thank you for the compliment. The front bumper beam turned out to be made from aluminium, maybe to reduce front suspension weight or turning inertia? Now even lighter thanks to the cooling slot in it!

Did you notice on the first spoiler pic you mentioned that the horns have been moved to the side for cleaner airflow, and although not visible as it is above the panel, so has the secondary coil.
Greg

 

That looks pretty good. I always appreciate a well-executed functional modification.
So, are you saying that the stock front bumper there is a relatively thin aluminum (aluminium) beam? Have you had a good look the bulky monstrosity they bolted to the front and rear of the U.S. models in the name of "safety"?

Yes, I did notice that, but, I wasn't sure if you had done that, or, if that was the stock setup over there.

 

Yes, about 4mm thick rolled and tig welded (I think) beam. Secured to the car by a long double-ended high tensile steel bolts with thick washer-like fittings each end that centre it into the bodywork tubes holes where on USA cars the shock absorbing thingy goes. Same at the back but a steel beam.
I believe that the cooling marginality on the XJS is all about the lack of clean airflow to the rad stack; the slot and moving the coil and the horns, give a huge increase in uninterrupted clean laminar flow to the rad stack. The consequence of which is far better heat transfer than standard. Until you have unbolted the front bumper and tried it, it is hard for people to grasp just what a difference it makes to the speed of cooling down after, (eg) a hot traffic stop. I have a main electric fan, and it never cuts in, even in the hottest weather, unless the car is stuck in traffic on a really hot day after a hot run. (rant over !)
Greg

 

There are definitely a lot of things blocking airflow to the radiator, and the bumper is one of the major offenders. I plan to do away with the bumpers on JagZilla, and go with something similar to the nerf bar bumpers on a '65 Cobra.

This is what we have in the states:


I haven't weighed it (I could though, if someone here is interested in such things), but, it's easily 5-10 times heavier than what comes standard in Europe.

Sorry for the thread hijack BCXJS.

It might be worthwhile to start a new thread on the various versions of bumpers, as well as the procedures for modifying them, so that people can find all the info they need on them in one location.

 

Greg. Is the undertray/spoiler support metal or plastic. I spoke with Paul Jag and he stated they where all plastic but a forum member dtated him had rusted. I'm confused now

 

The tray itself is definitely plastic. I am not sure which part you mean by the "spoiler support". The tray fixes to the under radiator cross beam (the large steel shiny washer about halfway back each side of the tray shows where on my first pic above), the back of the actual spoiler lip, and to the wheel arch baffles. The under rad beam is steel, and this rusts. The spoiler fixes to the steel curved panels below the bumper, these rust.
Greg

 

I'm sure he's talking about the lower valance panel, which is completely hidden by the spoiler, but, is the body panel which ties together the two lower front corners, and creates the lower lip of the front grill opening. That part was at least 3/4 rusted away on both of my cars when I bought them. They pop up on ebay from time to time, and I think that I saw one in Paul's Jaguar ebay store a few weeks ago.

 

OK, Thanks JZ, This one No. 7:

Part no. RTC1531 | Lower panel parts from Jaguar Heritage Parts UK


Amazingly, still available according to JCP ! The lower grille bolts to the top of it and the spiler to the bottom, I seem to remember. Just had a look and ther are a couple on UK ebay, eg: Jaguar XJS Front Lower Panel RTC1531. | eBay


Greg

 

I think I need number 14 on diagram. Isn't that the lower tray that bolts to the spoiler?

 

Number 14?
That would be this part:

 

No 14 is the tray itself, definitely plastic, and that is the part you need to fit as well as the spoiler, No 13, which I understand you had to start with. I thought you were asking in your last post about the bits the tray and the spoiler are fixed to.
Greg

 

There are 2 metal brackets that attach to the plastic wheel arch stone guards and the tray. I made new ones out of some SS strip and used some plastic nut and bolts to fix as the steel rusts...... I also put some small SS washers between the tray back edge and the crossbeam so that any water could run out and not re rust the crossbeam.

 

Jagzilla. Did you buy that from Pauls of are you showing me the one your going to give me a smokin deal on. Lol

 

Bought it from Paul's a couple years ago. Advertised as the very last NOS undertay anywhere in the world.

 

Now that's funny........They sold me on the very same story !!!! So there must have been a few "very last" ones