As I said in this thread
https://www.jaguarforums.com/forum/x...r-pump-184943/
Had to have the XFR flat bedded after it started hemorrhaging coolant on my way home from work last week, but after pressure testing found out it was actually the rear coolant crossover that supplies the heater. The pressure tester and adaptor I used can be rented from O'rieleys




The water pump didn't leak but did have a bearing going out so out it was coming too. Just 4 bolts hold it on, but both the drive belts, both tensioners, Both intake tubes, and the hoses need to come off to facilitate its removal.


Old water pump out, its important to note the position of this plastic pipe, the rise on that flange uses the back of the pump for alignment and clamping force when the water pump is bolted down in front of it.

This I figured would be a good time to replace most of the hoses too.


Lots of hoses on this engine.

Then I saw how easy the alternator was to access now and with 82kmi on the car might as well get the alternator rebuilt, just 3 mounting bolts and 2 connectors, OF NOTE the plug in connector is a PUSH DOWN type connector its hard to see, and its wire has little slack.



This is the # you need to give anyone for a rebuild kit for the V8 XF alt.



I've bought a total of 4 alts, 2 starters and now 1 alt rebuild from the Good guys at quality Power, I had mine upgraded from 150 amps to 250 amps. This upgrade also requires you run an additional heavy gauge positive cable from the alt to the battery, due to its ability to supply so much current, BUT OUR BATTERY IS IN THE TRUNK..lol just run it from the alt to the positive side of the starter The one on the starter with the positive cable, only about 1.5 feet problem solved. I used a cut to fit old positive battery cable I had. Cut it to length, put some eyelet connectors on it, hooked it up from the alt battery output to the starter battery input, all done.



Rebuilt alt back in.

 

The car sat for a few days since I took the water pump off, I had a rag stuffed in the hole to capture the coolant, IMPORTANT all the bolt holes for the water pump are blind (no opening on the back) so you need to make sure you blow all the coolant out of them BEFORE you run a bolt into them. Remember water is a solid when compressed and you can severely damage the block as in I now need a new block.



Note the position of this pipe. The new one needs to go in the same way.



Old pump off.



New pump in, be sure to lube the 2 seals in the transfer tube on the back of the unit.

 

More alternator install pics





Heavy gauge wire to alt.



Heavy gauge wire to + on starter.

 

Well got the front engine stuff pretty much done now.



The hoses,Tstat, Inner drive belt and Water pump are now done. it pays to take pictures of EVERYTHING BEFORE YOU START. And a small amount of lube on the hoses and nipples, goes a long way in speeding up assembly, try not to use any silicon based lubricants, good old Vaseline works just fine.
on to the rear transfer pipe...This is gonna be fun..lol

 

Thanks for documenting this, I'm sure it will be useful to owners across the different model types. Did you have any particular tips or tricks to mention regarding any of the connectors or fittings. One of the XJ owners was having a problem shown in this thread:

https://www.jaguarforums.com/forum/x...nstall-186621/

Thanks again for providing this to help others.

 

I too take pictures of everything even if I do have a manual. It really helps to make sure that everything is replaced properly. I have done the coolant lines twice and end up replacing all of them as a set to make sure that no failures occur for a long time.

 

Well I go the supercharger off tonight, Jag seems to assemble things in groups which is exactly how it should be dissembled and re assembled. The problems show up when you work behind a hack that has left things undone or re assembled wrong. I hope most have noticed I've left out details like what tools are needed. This job has not been for the light hearted mechanically or money wise, and if you have any reservations in either category...TAKE YOURS TO THE SHOP!










Port and valve cleaning time too. the big coolant leaker is exposed in the back round.

 

Looks like a hell of an undertaking.

How do the valves look? Any significant carbon buildup?

 

Yes it has now become a Supercharger service too..lol dumping its oil, so Ed last serviced it in 2014.



Got a few things to clean tonight, too hot at 110º right now.

 

Hey Bigg Will...how the heck do these connectors come off???

 

It's actually a pretty straight forward job Patrick, I fought connectors more than anything. .lol Some carbon build up but not bad at all for 82kmi.

 

While holding the tabs in, push the conector in and then pull it off.

 

Will, great work and detailed thread - thanks for your continued excellent contributions!

 

Well I finally removed toe leaking culprit this morning.


The leaker


Cracked along the seam here, it won't even hold breath air pressure.





Some cleaning tonight since from this point forward is installation!
Parts are cleaned and ready to go. Still waiting on the new supercharger oil though.

 

man that is alot of work for a coolant tube...the entire top end of the engine had to come off!!!!

Great write up !!!!

 

The plastic tube coming off the water pump from inside the V, this is why positioning it correctly is so important.



Making progress.



When possible I ditch the torx head bolt for 6 point flange head bolts, they are much more forgiving if you get on them wrong, and give you the option of using a wrench or even pliers..lol

 

What is the large "cooler" looking thingy down inside the valley? And what is it's purpose?


Can't be a charge air cooler.

 

It's the engine oil cooler.

 

About to fly the supercharger into place, made some locator pins out of some old bolts, a big help in jockeying in the supercharger and plugging in the electronics on the backside of the SC.

 

Oil from the supercharger.