Well i don't know if you remember from my thread or not but i did POR-15 the inside of mine.
it is not a daily driver (only drive it a couple times a week atm)
so it might take a while to get an idea,
but i do suspect it will last.
unlike paint POR-15 is more like an epoxy.
it forms a hard unbreakable shell like an epoxy glue.
i left a little patch the size of a coin to dry on a piece of timber. once i chiseled it off it felt hard and solid as.
i can't see how it would chip/crack/flake very easily if at all.
i really liken the finish to that of a 2 part epoxy resin.

this is what they say about it "The secret lies in POR-15 Rust Preventive Coating's curing process. Most paints dry through evaporation, but POR-15 Rust Preventive Coating dries faster when moisture is present. It has the opposite chemistry of ordinary paints. Now add to that POR-15 Rust Preventive Coating incredible hardness, toughness, and flexibility and you have a coating that is practically indestructible. POR-15 Rust Preventive Coating is a permanent rust repair great for auto frame and chassis restoration, protecting valuable equipment against rust and corrosion. Use POR-15 Cleaner Degreaser and POR-15 Metal Prep to properly get your surface ready for the POR-15 Rust Preventive Coating. You'll be amazed at the toughness!"

time will tell how much of this is marketing BS and how much well it actually holds up.

they say it discolours from UV, but i suspect it also discolours from heat as the silver i used on the cam cover did start to yellow, so i gave it a coat of hi temp silver on the top.

 

does anybody have the infamous ribbed aluminum cover

 

I thought those were only on the 1993/94 AJ6 engines with the same bolt pattern as the AJ16 magnesium.(minus the on-plug coil holes)

 

this one

 

are they the covers from an Aston Martin?

also what engine bay is that?

 

Aston never used the AJ16...I believe.

 

well not quite……
the used the DB7 which was based from the AJ6…
so whilst not exactly the same . They are the same block.
just checked an image and this is not the cam cover the DB7 was different.
do wanna know which one this is tho.

 

yes they used the second gen 3.2/4.0 block and heads.

their cover is different it’s made for ford waste spark coil and it has a cutout for a cam sensor

 

Yes, the Aston camcover will not work on the AJ16 engine, but should fit fine on the AJ6....I believe.

 

this isn't quite what your asking however.

Late XJ40 Covers ( which have the oil Cap ) have the same bolt pattern and fit directly do an AJ16 Head. I'm looking into a Coil on Plug option that will work with this Rocker cover.

I'm doing it for Aesthetic reasons as i personally very much enjoy the motorsport look of a ribbed rocker cover . Part of this plan is also an XK style oil cap

 

Please keep us posted! Many of us are probably interested in what you're working on!

 

Bit of background on my thoughts

1,My Magnesium Cover is in good shape - but it is showing the signs so i would like to keep and preserve it
2, Prefer the XJ40 Rocker Cover cover with the ribs
3, My Lucas coils are working but the idle isn't as smooth as it could be.

The Idea was Covered by another member who us using Ford coil on plugs

https://www.jaguarforums.com/forum/x...nundrum-84533/

Later in the thread Ford Barra Coils were mentioned, so the idea is to purchase one and confirm it operates and fits
( XJ40 valve covers have smaller holes that do not Accept XJ16 Coil packs ) and then design a simple hold down bracket / o ring seal arrangement.

My Car is a garaged weekend fun special car that gets treated well so im not too worried about exposed coils.

 

i thought bout barra coils.
Similar motors.
interesting.

i was looking at iacv and the one from a gas barra caught my eye as looking same too.
if i could afford to splurge on parts could be an interesting test.
i have a territory here with a barra so could test a few parts i suppose.
always thought if the aj16 dies maybe do a barra swap to keep the car very similar but make it cheaper and easier to work on

would explain why this company that does falcon performance stuff would also have jag coils.
the coils are the same just packed into a different housing

 

Are you Nz or Aus Spud Matt ?

a parts store Barra coil is $20 so it can be DOA and still serve it’s purpose.

ive also found some AEM pencil style coils which are much prettier but much more expensive.

if it comes to it I will modify the xj40 valve cover - but that’s not a solution which will help other peoples magnesium corrosion issues

 

AU.
yeah i know its cheap enough. Could test fit with my terry coils tho. If i could be bothered. Would be the matter of mounting them if they worked.

 

There’s a thread somewhere that confirms there are some Lincoln coils that work, they are just very tall.

 

I have ordered an early type 2 pin Coyote V8 ignition coil to see what can be done with fitting it into the XJ40 Cam cover.
I searched for many hours to find dimensions and actual physical specifications to no results. In the end ive taken a punt. its a nice looking coil with a fixing bolt and a concentric head on it.

Its a punt but i will see what happens. From here it should be possible to lengthen or shorten the stalk like is possible on a lot of other COP units.

 

So for project put an xj40 rocker cover on an x300

this is a lot of waffle about coils, x300 ones don’t fit so this is all for the purpose of running the xj40 alloy cam cover .

I have received the coyote/mustang coil and it sits in the xj40 plug tube where the x300 coil is too large of a diameter . I trimmed the lower boot slightly untill it sat correctly and I’m quite happy with it .

I’ve set about designing a coil mounting bracket . Some drilling is necessary but it’s nothing that can’t be sorted with a drill press.

For wiring it I’ve found that The x300 female
coil plug Is a sumitomo DL90-2 this is not mentioned in the wiring diagram which states connectors are econoseal 3 070 type . I’m probably just going to pin the ford coil plug on the x300 loom for now . But an Adapter harness could be made .

im going to need to drill and tap a coil mount in my magnesium coil so I can do some testing and make sure this system runs correctly before buying more coils to fully commit to the xj40 cam cover

 

I've always wanted to try the 93/94 AJ6 cam cover but my thought was 2 pin AJ26 V8 coils.

I never got serious because I sold all my X300 sedans and got into the X308 collection.

Still interested in the outcome.

 

The coil plate in the picture is just sheet metal galv for testing.

I’ve gone far enough to get my dxf file cut from 2mm stainless steel .

in the picture the coil is seated on a spark plug in a cylinder head . The coil is aligned to land the fixing bolt In the groove , this will get a stud with loctite to seal it .