XJ XJ8 / XJR ( X308 ) 1997 - 2003

The coolant system ?

Thread Tools
 
Search this Thread
 
Old Oct 3, 2013 | 10:14 PM
  #21  
Disco1994's Avatar
Member
Joined: Jul 2011
Posts: 44
Likes: 7
From: Detroit Metro, Michigan
Default

I realize that this is an old thread, but I have thought back on this a few times and it bugs me. I really like the Aston Martin idea and have thought the same thing many times, but once again, those women folk are so stingy about that!

I have thought over this situation from time to time and can't bear to stand that no one has mentioned a thermostat on here. I didn't see anywhere that you replaced it. You need to replace the thermostat every time the car is overheated because they are built with a wax pellet that melts away when too hot. I tried to run mine after doing head gaskets and it had the same symptoms as yours. It's also a good time to replace that bad plastic thermostat housing with a nice aftermarket aluminum one.

Hate to give this info so late, and I could be wrong, but I'm confident that $60 for thermostat and housing both plus half an hour to put it in would have solved your problems.
 
Reply
Old Oct 4, 2013 | 06:09 AM
  #22  
robertjag's Avatar
Senior Member
Joined: Jan 2013
Posts: 296
Likes: 43
From: Charleston SC
Default

Originally Posted by Jhartz
Busted the ^^^^ out of the one between the expansion tank and the radiator. Half inch rubber tube at radiator nipple and 4 (yes 4) tighteners to tighten down on the plastic tube (7 above) has temporarily fixed, but sloppy (hate sloppy). given more blood on this ^^^^ing car than I ever gave to Red Cross.
LOL. I just did the same fix 4 days ago! I have a new bleeder hose on order. Jag has a little tool that looks like a divot repair tool. I have tried soaking the connectors with penetrating oil prior to removal with some success. The main problem is that the force to remove them often breaks them.

Oh, and I only needed two clamps!
 
Reply
Old Oct 4, 2013 | 06:22 AM
  #23  
OldMike's Avatar
Veteran Member
Joined: Mar 2012
Posts: 1,531
Likes: 204
From: Florida
Default

I broke mine, too!

If you don't have the removal tool, which is supposed to be stored somewhere in the engine compartment, you can use a long needle nose pliers to open the connector. Lots of people say to squeeze the connector to take it off, and I know it can be done like that sometimes, but the proper way is to use the tool or something else to push the plastic "loops" out to pop the connector off.
 
Reply
Old Oct 4, 2013 | 07:52 AM
  #24  
plums's Avatar
Veteran Member
Joined: Feb 2011
Posts: 9,733
Likes: 2,201
From: on-the-edge
Default look at the loop

Having looked very carefully at those fittings due to recent trauma involving purchasing new hoses at the dealer ...

the loop fits completely around the retaining lip on the nipple.

Therefore, squeezing the loop only makes things worse. What can help in addition to the lubricant is a bit of gentle twisting to free things up and a small jewelers screwdriver to aid in freeing up tight spots on the loop. If any part of the loop is hanging on the retaining lip, removal will be very difficult.

Plastic of any kind, in any location ought to be banned from automobiles.
 
Reply
Old Oct 4, 2013 | 11:38 AM
  #25  
OldMike's Avatar
Veteran Member
Joined: Mar 2012
Posts: 1,531
Likes: 204
From: Florida
Default

Here's a photo of me using a long needle nose on the part load breather, but I believe it's the same type of connector.

 
Attached Thumbnails The coolant system ?-717befb3439244891ddaf4c6f1cdd537_zps41cd559a.jpg  
Reply
Old Oct 4, 2013 | 12:57 PM
  #26  
kyle04's Avatar
Senior Member
Joined: May 2013
Posts: 225
Likes: 69
From: uk
Default

Originally Posted by plums

Plastic of any kind, in any location ought to be banned from automobiles.
Amen to that plums, together with those pre-tensioned hose clamps. I guess that what they call progress, replace cast iron, rubber and jubilee clips with aluminium , brittle plastic and spring clips. I think older car designers had a built in assumption that the owner or his mechanic would be spending time under the bonnet - hence the simplicity of design. more modern makers assume near total reliability which in hindsight is plain wrong.
Makes my blood boil.....
 
Reply
Old Oct 4, 2013 | 09:52 PM
  #27  
robertjag's Avatar
Senior Member
Joined: Jan 2013
Posts: 296
Likes: 43
From: Charleston SC
Default

Originally Posted by OldMike
Here's a photo of me using a long needle nose on the part load breather, but I believe it's the same type of connector.

The clip works with two tabs that are on the inside of the ring in alignment with the two vertical bars on the side. So squeezing the ring at points away from the two bars is supposed to make the tabs move laterally and release the clip.

I have not been able to get it to work with the needle nose pliers method. With that method I have to pull away with too much force, the clip gives and I end up breaking them.

I have had more success with oil and then pinching the ring and pulling with a slight turning back and forth motion.

I have seen the tool on a Jag service bulletin. If I remember correctly, the bulletin made it sound like the tool had been developed after the fact because techs were having problems removing the clips.
 
Reply
Old Oct 5, 2013 | 06:13 AM
  #28  
OldMike's Avatar
Veteran Member
Joined: Mar 2012
Posts: 1,531
Likes: 204
From: Florida
Default

I found that the "secret" to using the needle nose pliers is to push the pliers into the connector as shown in the photo until the connector releases - I do not suggest "opening" the plies, just slide it in until the connector opens -- very carefully, of course.
 
Reply
Old Feb 26, 2022 | 11:55 AM
  #29  
Jose M Nunes's Avatar
Junior Member
Joined: Aug 2020
Posts: 11
Likes: 0
From: Asuncion Paraguay
Red face

Originally Posted by GGG
I think you mean the Header Tank (item 5):



Check the hose (item 4) hasn't become detached or split before assuming tank failure.

Graham
Hi GGG. Could you tell me please how can I find the number 12 on this diagram
 
Reply
Old Feb 28, 2022 | 01:02 PM
  #30  
Jhartz's Avatar
Veteran Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2013
Posts: 3,780
Likes: 1,060
From: Virginia beach va
Default

Geez: I hope he didn't wait nine years to fix this!!
 
Reply
Old Feb 28, 2022 | 05:55 PM
  #31  
GGG's Avatar
GGG
10 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2011
Posts: 120,439
Likes: 17,006
From: Durham, UK
Default

Originally Posted by Jose M Nunes
Hi GGG. Could you tell me please how can I find the number 12 on this diagram
The part number of the double pipe clip is KDG107003 but it's showing as NLA (No Longer Available) from Jaguar. The double clip (item 12) is available as part number KDP108081.

Graham
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1100me
XJS ( X27 )
46
Jul 24, 2023 06:10 PM
Wahooesprit
X-Type ( X400 )
17
Dec 23, 2019 02:01 PM
willtoliv
XK8 / XKR ( X100 )
46
Oct 2, 2015 12:18 PM
jimmiejag
XK8 / XKR ( X100 )
4
Sep 9, 2015 02:56 PM
1100me
XJS ( X27 )
2
Sep 7, 2015 06:26 AM

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



All times are GMT -5. The time now is 11:33 AM.