XJ XJ8 / XJR ( X308 ) 1997 - 2003

What maintainence work would you do on an XJR?

Thread Tools
 
Search this Thread
 
Old Aug 10, 2022 | 07:54 AM
  #1  
asjdhsajhdfj's Avatar
Thread Starter
|
Senior Member
Liked
Loved
Community Favorite
Joined: May 2021
Posts: 186
Likes: 14
Default What maintainence work would you do on an XJR?

I have seen a 2001 XJR with 51k on the clock.

What work would you do on this car to enhance it? Whether it's springs, reconditioning the supercharger etc.
 
Reply
Old Aug 10, 2022 | 08:09 AM
  #2  
Quadcammer's Avatar
Senior Member
Top Answer: 1
Joined: May 2022
Posts: 524
Likes: 230
From: Clifton, NJ
Default

Hard to say. Its a 21 year old car and they are all different based on how they were treated and what prior maintenance is done.

If you really want to go hog wild:

Biggie...check for tensioners

1. Valley coolant hoses
2. water pump
3. change supercharger oil and coupler
4. clean intercoolers internally
5. clean maf, replace air filter
6. replace fuel filter
7. review suspension to determine whether shock bushings or shock mounts need replacement
8. clean egr valve and throttle body
9. replace octopus cooling hoses
10. replace tired/brittle cooling hoses
11. replace thermostat
12. lubricate sunroof mechanism
 
Reply
Old Aug 10, 2022 | 08:11 AM
  #3  
asjdhsajhdfj's Avatar
Thread Starter
|
Senior Member
Liked
Loved
Community Favorite
Joined: May 2021
Posts: 186
Likes: 14
Default

Originally Posted by Quadcammer
Hard to say. Its a 21 year old car and they are all different based on how they were treated and what prior maintenance is done.

If you really want to go hog wild:

Biggie...check for tensioners

1. Valley coolant hoses
2. water pump
3. change supercharger oil and coupler
4. clean intercoolers internally
5. clean maf, replace air filter
6. replace fuel filter
7. review suspension to determine whether shock bushings or shock mounts need replacement
8. clean egr valve and throttle body
9. replace octopus cooling hoses
10. replace tired/brittle cooling hoses
11. replace thermostat
12. lubricate sunroof mechanism
Thank you. This is the exact type of information I am looking for. If I do go ahead with the XJR, I plan on keeping it for as long as I can.
 
Reply
Old Aug 10, 2022 | 09:15 AM
  #4  
pcolapacker's Avatar
Veteran Member
5 Year Member
Liked
Joined: Apr 2021
Posts: 1,206
Likes: 475
From: Pensacola, FL
Default

If any drips or signs of weeping, drain and refill rear end. Don't think can really check level. Have to empty from top with suction pump. It's a pain, but there are threads on it. Mine at 100K was way low. It had no drips but signs of weeping around one axle seal.
 
Reply
Old Aug 10, 2022 | 09:23 AM
  #5  
Quadcammer's Avatar
Senior Member
Top Answer: 1
Joined: May 2022
Posts: 524
Likes: 230
From: Clifton, NJ
Default

yeah, rear diff fluid is a good one.

Really at this age it will likely need some suspension work, potentially motor mounts, may have a leaking trans electrical connector, etc.

Best to look it over and assess whats needed.
 
Reply
Old Aug 10, 2022 | 11:06 AM
  #6  
RandyS's Avatar
Veteran Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2014
Posts: 1,927
Likes: 582
From: TN
Default

The overall check of critical mechanical issues is obvious and a great place to start.
I like to provide the carpets a deep clean. I like to replace the cabin air filter also.
 
Reply
Old Aug 10, 2022 | 11:30 AM
  #7  
Quadcammer's Avatar
Senior Member
Top Answer: 1
Joined: May 2022
Posts: 524
Likes: 230
From: Clifton, NJ
Default

no cabin filter on the US 308s
 
Reply
Old Aug 10, 2022 | 11:36 AM
  #8  
RandyS's Avatar
Veteran Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2014
Posts: 1,927
Likes: 582
From: TN
Default

Yes, they were only on the XK8 or XKR. I don't remember seeing one on the Duchess.
 
Reply
Old Aug 10, 2022 | 01:15 PM
  #9  
Sean B's Avatar
Veteran Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2008
Posts: 4,878
Likes: 1,426
From: Sunny Southport UK
Default

If it’s a ‘new to you’ I’d first check the timing chain tensioners and guides are latest spec’.

The MLS gaskets from the 4.2L are a decent upgrade on the original version. If the head studs aren’t centre popped they can be re-torqued.

Fuel pumps!
ABS module solder job
Bag a spare security locking module, but it needs to be the same program code as your car’s V-CATS list…

bleed the brakes with new fluid, and maybe add some goodridge braided lines for an improvement.

These are the ones that catch you out on an otherwise bomb proof vehicle.
 
Reply
Old Aug 10, 2022 | 01:38 PM
  #10  
Addicted2boost's Avatar
Veteran Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2015
Posts: 3,125
Likes: 1,280
Default

Sean, I can’t imagine myself retorquing the head bolts much less somebody else. 😄
 
Reply
Old Aug 11, 2022 | 02:55 PM
  #11  
vincent661983's Avatar
Veteran Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Oct 2010
Posts: 1,438
Likes: 169
From: New York
Default

I am not joking, but everything. I really mean everything if you check my post history.

you name any part of the car. I either replaced, rebuilt, upgraded....
 
Reply
Old Aug 12, 2022 | 07:49 AM
  #12  
RandyS's Avatar
Veteran Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2014
Posts: 1,927
Likes: 582
From: TN
Default

Originally Posted by vincent661983
I am not joking, but everything. I really mean everything if you check my post history.

you name any part of the car. I either replaced, rebuilt, upgraded....
I am certainly NOT saying that is a bad thing, yet where did you find the time?
 

Last edited by RandyS; Aug 12, 2022 at 03:00 PM.
Reply
Old Aug 12, 2022 | 09:25 AM
  #13  
Z07Brandon's Avatar
Veteran Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2017
Posts: 1,190
Likes: 322
From: Dallas, Tx
Default

I would say tensioner, thermostat and water pump definite yes. Tires if they need replacing. Just fix whatever breaks along the way. For example, why do a respray if it doesn't need it?
 
Reply
Old Aug 12, 2022 | 03:08 PM
  #14  
RandyS's Avatar
Veteran Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2014
Posts: 1,927
Likes: 582
From: TN
Default

Like Brandon, the tensioners, thermostat and water pump would be of first concern. As you get into it,
you will no doubt spot other areas of concern. You are not in a pit stop during a race, so take your time
and enjoy the secure feeling of a well tended Jaguar.
 
Reply
Old Aug 12, 2022 | 08:23 PM
  #15  
Edward_Woodward's Avatar
Senior Member
5 Year Member
Liked
Loved
Joined: Aug 2018
Posts: 103
Likes: 8
From: Western NY
Default

If you have not bought it - I would certainly consider it - finding low mileage on X308s is very difficult now. In my neck of the woods an average X308 with 165k+ mileage will sell for less than $5500 the same car with less than 80k miles will sell for over $9,000.
An old foreign car guy once told me 90% of all XJ8s in the junk yard are there for 2 reasons - blown motors (plastic tensioner or water pump) or blown tranny - and he said the biggest travesty was there were more tranny issues and the part that actually causes the failure is a $30 pressure valve/solenoid (the housing bore wears and lets too much pressure which eventually takes out a slightly undersized A drum/clutch).

At 51K I would pull the valve body and check the bore, if you catch it early enough they have upgrades that might get you another 100k plus mileage.

More cosmetic issues - every single X308 I have ever seen has a clear coat issue, a sagging headliner, broken third/upper brake light, broken sun visor clips, Broken cup holder, if a previous driver was tall or heavy the power seat brackets might be broken. the fabric inside the door pockets often disintegrates, also be careful pulling door panels off the molded plastic likes to crack and break especially the corners, door handle mechanisms and hood latches have plastic parts the break
 
Reply
Old Aug 12, 2022 | 08:55 PM
  #16  
Z07Brandon's Avatar
Veteran Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2017
Posts: 1,190
Likes: 322
From: Dallas, Tx
Default

Well, I see your point about the trams valve body. But, the OP is talking about an XJR. Which doesn't use the ZF 5hp.
 
Reply
Old Aug 17, 2022 | 11:24 PM
  #17  
Edward_Woodward's Avatar
Senior Member
5 Year Member
Liked
Loved
Joined: Aug 2018
Posts: 103
Likes: 8
From: Western NY
Default

Good catch Brandon - I am going to blame it on new to me bifocals that can't tell the difference between an R and an 8 - but it's also possible I was being lazy and didn't read the full title
Anyways are the Mercedes trannies in the Rs any good ? I remember Mercedes had a lot of tranny issues in their own cars in the 90s and early 2000s ?
 
Reply
Old Aug 18, 2022 | 06:53 AM
  #18  
Z07Brandon's Avatar
Veteran Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2017
Posts: 1,190
Likes: 322
From: Dallas, Tx
Default

Very strong Trans. They used it in all their Amg's and high torque cars. Which is why Jaguar didn't use them in the S/C cars.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
vincent661983
XJ XJ8 / XJR ( X308 )
0
Dec 8, 2015 04:16 PM
karl_s
US Midwest
9
Jun 3, 2014 07:33 AM
Ipc838
XJ XJ8 / XJR ( X308 )
5
Oct 4, 2012 04:06 AM
jjd
XJ XJ8 / XJR ( X308 )
2
Oct 2, 2012 04:08 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



All times are GMT -5. The time now is 03:00 AM.