XJ8 Water Pump Replacement
#1
XJ8 Water Pump Replacement
Last weekend my '02 XJ8's water pump decided to fail. Of course, it was far from home, so I left it at a garage (in the Poconos). Their estimate to replace pump, timing belt & coolant is $620. Is that reasonable? Is this a job a shade tree mechanic could do? Thanks.
#5
Take a quick look here: JagRepair.com - Jaguar Repair Information Resource for getting an idea of how "much" work it involves to R&R the water pump. 620$ looks quite steep to me as the parts costs usually won't exceed the 100$ limit.
Tipp: you/they should get a water pump with a metal gasket. Here in good old Europe, you'll get some pumps with paper gaskets (even from well known brands) and they'll definitely leak one day and probably earlier, than their siblings with the metal gaskets.
Tipp: you/they should get a water pump with a metal gasket. Here in good old Europe, you'll get some pumps with paper gaskets (even from well known brands) and they'll definitely leak one day and probably earlier, than their siblings with the metal gaskets.
#6
The following 3 users liked this post by Mark SF:
#8
The following 2 users liked this post by Jhartz:
Don B (08-04-2017),
ericjansen (08-02-2017)
#9
Anyone can click on my username, and see the posts I've made. They look pretty helpful to me.
Interestingly, I calculate that I have been thanked at a rate of 0.3 times per post, while you have been thanked at a rate of 0.34 times per post, so it seems that my posts are of about the same general utility as yours.
This is the second time you've been belligerent at an post of mine for no apparent reason. Post flagged.
Last edited by Mark SF; 08-03-2017 at 01:16 PM.
#10
#12
- The old tower can be broken into pieces.
I used a large vice, and several rags around and in the pipe to prevent stuff falling in, it comes off in several large chunks.
- The 2x rear bolts are then much easier accessible.
If you are lucky, they just come out.
If not, just lift the intake manifold a tat (loosen all bolt some turns, nothing should fall out).
Just 10 minutes extra.
- Use Allen bolts / keys for reassembly, no problem to access the rear bolts with those.
The following users liked this post:
masterchief579 (11-23-2017)
#13
hello again
i am surely going to try to replace the water pump while the weather is warm . my car stays at normal temperature when idling but shortly thereafter the temp goes up and then will cool back down rapidly. so it seems from here that something is stopping the coolant from flowing .i hope i am doing this repair in the right order ,water pump , thermostat , and flushing the system .
another thing i need to figure out is if the engine has a oil coolant . the parts place asked me and i am not sure how to tell since this is new to me .
any advice i could get is appreciated on both subjects.
--------------------------------
1998 jaguar xj8l
i am surely going to try to replace the water pump while the weather is warm . my car stays at normal temperature when idling but shortly thereafter the temp goes up and then will cool back down rapidly. so it seems from here that something is stopping the coolant from flowing .i hope i am doing this repair in the right order ,water pump , thermostat , and flushing the system .
another thing i need to figure out is if the engine has a oil coolant . the parts place asked me and i am not sure how to tell since this is new to me .
any advice i could get is appreciated on both subjects.
--------------------------------
1998 jaguar xj8l
#14
In my (and several other cases) it was the thermostat.
They tend to stuck, and considering the importance for a Jaguar engine, should imo a replacement item every couple of years.
Waterpump and thermostat/o-ring cost next to nothing on a site like Rockauto, so don't drive the car till you got them replaced.
I replaced the thermostat-tower for an alloy one in the same time, just to take the risk of 19 yr old brittle plastic away.
A good flush and fresh coolant at the end, all relative easy DIY jobs.
They tend to stuck, and considering the importance for a Jaguar engine, should imo a replacement item every couple of years.
Waterpump and thermostat/o-ring cost next to nothing on a site like Rockauto, so don't drive the car till you got them replaced.
I replaced the thermostat-tower for an alloy one in the same time, just to take the risk of 19 yr old brittle plastic away.
A good flush and fresh coolant at the end, all relative easy DIY jobs.
#15
hello again
i am surely going to try to replace the water pump while the weather is warm . my car stays at normal temperature when idling but shortly thereafter the temp goes up and then will cool back down rapidly. so it seems from here that something is stopping the coolant from flowing .i hope i am doing this repair in the right order ,water pump , thermostat , and flushing the system .
another thing i need to figure out is if the engine has a oil coolant . the parts place asked me and i am not sure how to tell since this is new to me .
any advice i could get is appreciated on both subjects.
--------------------------------
1998 jaguar xj8l
i am surely going to try to replace the water pump while the weather is warm . my car stays at normal temperature when idling but shortly thereafter the temp goes up and then will cool back down rapidly. so it seems from here that something is stopping the coolant from flowing .i hope i am doing this repair in the right order ,water pump , thermostat , and flushing the system .
another thing i need to figure out is if the engine has a oil coolant . the parts place asked me and i am not sure how to tell since this is new to me .
any advice i could get is appreciated on both subjects.
--------------------------------
1998 jaguar xj8l
now i see the water is boiling out from a tank on the bottom of the drivers side where a line from the overflow reservoir leads out
is it really the thermostat?
#16
I dare to say YES, big chance, and U are playing with fire by overheating the engine every time ...
The following users liked this post:
masterchief579 (11-24-2017)
#17
update on the overheating problem
believe it or not
the thermostat was stuck and would not open even after boiling it in a pan
thank you all for the help and the encouragement
i cant believe it after all that the overflow reservoir light is coming on
its a new reservoir
new water pump
new thermostat
what now??????????????
now i would like to ask for some advice on the brake lights
i have checked the fuses
i have another brake switch and when i put it in the brake lights stay on and will not go off
so after investigating the internet
i have discovered that is could be something to do with the BRAIN
HELP!!!
the thermostat was stuck and would not open even after boiling it in a pan
thank you all for the help and the encouragement
i cant believe it after all that the overflow reservoir light is coming on
its a new reservoir
new water pump
new thermostat
what now??????????????
now i would like to ask for some advice on the brake lights
i have checked the fuses
i have another brake switch and when i put it in the brake lights stay on and will not go off
so after investigating the internet
i have discovered that is could be something to do with the BRAIN
HELP!!!
Last edited by masterchief579; 11-25-2017 at 12:06 AM. Reason: more info
#18
The following 2 users liked this post by Jhartz:
Don B (11-27-2017),
masterchief579 (11-26-2017)
#19
I replaced my water pump yesterday with the AC Delco unit. Nice design, al-YOU-min-e-um gasket with sealant, and metal impeller (some, including original are plastic). $ 46.79 plus shipping from Rockauto. The dealer charges so much because their water pump ALONE is $ 329.00. Yep.
My question is, that upon removing the old pump, I notice it had the aluminium gasket, the rubber O-ring, AND what appeared to be a very thin cork type gasket (or some fibrous material) that went between the aluminium gasket and the engine block. Has anybody ever noticed this?
The area I am talking about is the black outer ring area in photo 2 below.
The gasket covered that black outer ring. (The black inner ring is actually raised, holds the rubber O-ring, and inserts into the engine block.
My question is, that upon removing the old pump, I notice it had the aluminium gasket, the rubber O-ring, AND what appeared to be a very thin cork type gasket (or some fibrous material) that went between the aluminium gasket and the engine block. Has anybody ever noticed this?
The area I am talking about is the black outer ring area in photo 2 below.
The gasket covered that black outer ring. (The black inner ring is actually raised, holds the rubber O-ring, and inserts into the engine block.