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those part numbers are correct and it looks like they fit everything from vin m45255 onwards....that covers most of the model years....is it possible to get the vin from the ebay seller....check this .....274922753447 item number left side
@ clubairth1: Yes, I think you are right - after I wrote that there is a chance that the engineers (25 years ago) might have intended to use the cam cover as sacificial anode, I actually dismissed that idea again, because if they would have wanted to be that genius, they would have used aluminum cam covers and added somewhere an additional simple lump of magnesium, which after some years could have been replaced for a couple of dollars. (I am giving here a precious idea to the automotive industry!)
What exactly did you mean by an "unused plugged port". Anyway, I think my new cam covers, which I ordered (long story - I ordered now 4 for each side) are mainly aluminum alloy with possibly a little bit of magnesium in there as well, but they are property coated (black). To perfect this, I might just cut off a bit of the old magnesium cam cover and attach it somewhere in that area as sacificial anode...
@ Scottjh9: I checked that item number - I had seen this rotten totally overpriced cam cover before. I ordered new ones - cheaper than this one.
The P/Ns are - as I wrote above somewhere C2S48786 and C2C34692. However, I could not order the latter one, instead I ordered C2C38781 and I very much hope that those parts are identical. There are actually tons of P/N for both cam covers, which all seem to be the same - thus, I got the suspicion, that the difference between those P/N s are the material those parts are made of, The C2C38781 P/N is for XF 2009-2015 and XJ 2010-2019. So maybe Tata-Jaguar learned from Ford-Jaguar's mistake and replaced Magnesium with Aluminum alloy cam covers.
@ JagV8: The use of sacrificial anodes is something, that just came to mind, I think this idea has something, but it is not thought thru to the end yet. One would be enough, but you could do two, and my current idea would be to connect it electrically with ground (=the engine), but definitely not with a copper wire, as copper is listed with a -0.35V index, which means copper would corrode everything else. I think connecting the magnesium either in the zinc plated iron cage or directly with a steel bolt to the engine somewhere could be the way to go. Cheers, Peter
I just remembered that they use sacrificial anodes on boats and found this: https://www.boatus.com/expert-advice...al-anodes-work
This confirms everything I wrote in my comment directly above.
So it does not matter, how many pieces, but for boats at least the sacrificial anode should have 1% of the surface area of the boat that it protects.
As sacrificial anode for boats in saltwater, you use aluminum.
And - wow! - for boats in freshwater (which would be the same as an engine on a wet road or condensed water on an engine) you use magnesium! (see bottom of article in link above). And as I suspected, the sacrificial anode needs to be electrically connected to the boat or in our case engine: Clean the contact surfaces and screw it on.
Having gathered all this information, I will have a go and see, if that helps. So the magnesium cam-cover from Jaguar is good for something after all - it's a sacrificial anode!
Btw.: Where the magnesium dissolved already on my cam-cover the resulting magnesium-residue is in it's consistency (when you touch it) similar to copper paste (which you would use on brake pads)... - thus, I expect to see those sacrificial magnesium anodes transform over time into exactly that.
By plugged port I mean any threaded port that currently just has a blanking plug installed. Not so common now but in the past one or more plugged ports on heads/blocks of any engine were/are very common. Some of them are just left overs from casting and machining the parts.
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Hi, I wanted to give you all an update of how I went:
So I had the issue of cam-covers, which self-destructed after 18 years in the warm Australian climate (galvanic corrosion = Jaguar-design failure).
I searched and found sellers on Alibaba, whom I could talk into selling me some cam covers. I have now a little stock pipe of cam covers (4 left, 4 right) - just in case... The price was really good. When swapping those cam covers I cleaned up the engine properly, plus I did a lot of other repairs. I will start a separate link about the various coolant leaks I had and how I fixed them. Here just more pictures about the cam cover issue and the repair.
So this is how bad it was: Oil leaking left, right and centre. Spark plugs and ignition coils drowning. The the engine block looked really sad. This shows the worst of the galvanic corrosion self-destruction Old and new right cam cover: the breather hose needs to be "re-planted"... ...and this is how to replant this breather hose: Carefully from underneath (after unscrewing a metal cover) you need to carefully press all 4 clips in simulaneoulsly to avoid damaging the breather. And another challenge on the left cam-cover as well: This breather hose also needs to be re-planted to the new cover: Carfully lift that little latch with a screwdriver and turn the whole thing anti-clockwise... ...here you see the thread. Engine block after cleaning. I had to rub off a lot of "magnesium-paste" off the cams: All that "liquified" magnesium, which came off the cam covers. New upper & lower seals in injector-unit. New cam covers fitted. And a shiny air-intake to crown it all. I cleaned the part with wire-brushes of all kind and covered it with clear-coat (=better then new).
This looks most certainly heaps better than before. No more oil leaking. The sellers on Alibaba could tell me only that the material of those new cam-covers is an alloy, which also contains magnesium - which percentage of magnesium they could not tell me. However, seeing that those new cam covers are properly coated I am not that worried about that. Hope this helps someone.
I forgot some very important information, if you intend to order cam(shaft) covers yourself - it takes a few days to find the correct part-numbers (P/Ns):
So I have a 2004 and a 2005 V6 S-Type, thus, mine fall under the category "from VIN M45255".
The parts catalogue from Barratt tells you:
1.) left camshaft cover (from VIN M45255): C2C34692
2.) right camshaft cover (from VIN M45255 - N52047): C2S48786
3.) right camshaft cover (from VIN N52048): C2S44849
Now...: For my 2004 AND 2005 S-Types the VIN-No.-bracket as in "2." would apply for the right cam cover. But I also investigated what the story about later S-Types is: A parts-check in "https://parts.jaguarlandroverclassic.com" revealed that C2S44849 has been superseded by C2S48786. Well, that's good news - thus at least all cam covers from VIN M45255 are the same. So you know now, for which P/N to look for when you are after the right one.
But looking to find a new cam cover for the left side (supposedly C2C34692) will drive you absolutely bongus, It's not available at "britishparts", it's out of stock at "jaguarlandroverclassic", and on Alibaba it is out of stock and deleted never to return. BUT: The part you want is C2C38781. A 'jaguarlandroverclassic" will tell you that this is the cam cover for XF 2009 - 2015, XJ 2010 > (from V00001). They even "pile one up for you" by adding "C2C38781 is not applicable to a Jaguar Classic Vehicle." Thus they point out very specifically that this part is the wrong part for the S-Type. Well, they are clueless: C2C38781 is indeed the cam cover you want for S-Type from VIN M45255. It fits - I fitted it obviously, as you can see on pictures above. And this is a P/N they can get you on Alibaba.
For the V6 with magnesium valve covers, has anybody investigated retrofitting covers from a Lincoln LS? I noticed the Fel-Pro gasket set for the late model V6 is also applicable to Lincoln. Poked around on eBay and the Lincoln valve covers appear to be plastic or composite. Unless radically different, this might be worth considering.
Hi Peter,
I live in Tweed Heads and drive ( daily ) a 2005 S Type Luxury with 103,000klms on the clock. Galvanic corrosion is evident in a few places on the Cam Covers and I need to replace them. The non specialist Jag mechanic has already removed the Cam Covers thinking that gaskets needed replacing before discovering the corrosion. Are you able to provide me please with the name of the supplier to speed up the process. Thanks.
Thanks so much! I needed to replace the left valve cover and the Jag dealers were all telling me there was no supersede it. Needless to say, I ordered C2C38781 from AliExpress and my mechanic confirmed with me it is the correct fit! This was hard to find, but a fraction of the cost of corroded ones listed on some auto parts websites.
Peter, I've been meaning to ask about the origin of these parts on Alibaba.
Are these original Jaguar parts, perhaps languishing in a warehouse for years? OEM is always nice, but still susceptible to corrosion.
Or are these aftermarket, hopefully made of a different alloy less likely to disintegrate? If aftermarket, are they brand name (URO comes to mind) or no-name?
The information provided by Peter is spot on and is invaluable. I have successfully sourced in 2 weeks both of the cam covers directly from a manufacturer in China and the cam covers are now fitted. Thanks Peter for all the information provided. It took me a day to source the supplier and another half a day communicating with the supplier before a deal was finally struck. I had the parts delivered by express air freight.
