XJ ( X351 ) 2009 - 2019

WP connection on hose to thermostat housing

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  #1  
Old 04-10-2021 | 11:01 PM
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Default WP connection on hose to thermostat housing

Is this plastic part from the water outlet hose to thermostat housing available separately? I’m unsure if the issue is the female part (@WP) or if it’s the male part from the outlet hose.
It won’t stay connected to the water pump and is leaking like a sieve. Was not leaking when I removed the WP, only when I reconnected it.

Water pump connection to outlet hose to thermostat housing.
 
  #2  
Old 04-11-2021 | 01:15 AM
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Originally Posted by Quietgiant
Is this plastic part from the water outlet hose to thermostat housing available separately? I’m unsure if the issue is the female part (@WP) or if it’s the male part from the outlet hose.
It won’t stay connected to the water pump and is leaking like a sieve. Was not leaking when I removed the WP, only when I reconnected it.

Water pump connection to outlet hose to thermostat housing.
do you have a higher quality picture? I can’t tell how far you pushed that elbow in. If it’s not far enough in, it will leak.

if that black elbow is still intact, there is an o-ring inside that could be damaged. I had to replace my o-ring to stop my leak.





 

Last edited by Oxidizer2k; 04-11-2021 at 01:22 AM.
  #3  
Old 04-11-2021 | 07:43 AM
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Originally Posted by Oxidizer2k
do you have a higher quality picture? I can’t tell how far you pushed that elbow in. If it’s not far enough in, it will leak.

if that black elbow is still intact, there is an o-ring inside that could be damaged. I had to replace my o-ring to stop my leak.
Thanks. The part does not grab onto the WP. Not sure if the “teeth” are engaging or if the plastic part is missing something on the end or if it is damaged. Are the WP female part and the plastic male fitting replaceable? Gee, I sure hope so. I’d really regret replacing a WP for such a weak link part as well as buying a $50 hose assembly because of a plastic bit.


 
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Old 04-11-2021 | 11:03 AM
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Okay use your phone and take a picture inside. There should be a green o-ring inside.

sorry about the blurry photo, this is the best picture I can find from when I was trying to solve some issues I had.





 

Last edited by Oxidizer2k; 04-11-2021 at 11:11 AM.
  #5  
Old 04-11-2021 | 01:39 PM
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Can’t tell if O ring is present or not. It definitely does not create any resistance while inserting the tube.
If what I see is it, it looks deteriorated.




Can’t tell if O-ring is present unless I pick at it.
 
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Old 04-11-2021 | 02:52 PM
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I really can’t tell. All the o-rings that I’ve seen have been green. If anyone else can confirm this it would be helpful. So you can clean it out any try and replace it. Taking that black plastic ring out will help a lot.
 

Last edited by Oxidizer2k; 04-11-2021 at 03:07 PM.
  #7  
Old 04-11-2021 | 03:45 PM
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Originally Posted by Oxidizer2k
I really can’t tell. All the o-rings that I’ve seen have been green. If anyone else can confirm this it would be helpful. So you can clean it out any try and replace it. Taking that black plastic ring out will help a lot.
I wasn’t sure I could remove the ring without damaging it. Any secret to removing it?
 
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Old 04-11-2021 | 03:52 PM
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Originally Posted by Quietgiant
I wasn’t sure I could remove the ring without damaging it. Any secret to removing it?
Sorry I should have included that. The plastic ring has 4 “legs” (best I can come up with LOL). I basically pulled it out and push in those feet as I pulled it out. You can use a small pick or a tiny flathead. In the picture I’m including I broke one of those legs. But I was able to get a replacement from an old water pump. I just by then how to pull it out. But you should be able to use this picture to see what I mean. Just keep pushing in every corner as you pull it out.


 
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  #9  
Old 04-11-2021 | 04:05 PM
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Thank you so much. Hopefully, if needed, both pieces will be available somewhere. I have a local rebuild shop 10-15 miles from me, I’ll call them to see if they have spares.
Again, Thanks!
 
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Old 04-11-2021 | 04:21 PM
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Originally Posted by Quietgiant
Thank you so much. Hopefully, if needed, both pieces will be available somewhere. I have a local rebuild shop 10-15 miles from me, I’ll call them to see if they have spares.
Again, Thanks!
When I was looking, the o-ring is easy to get at an auto parts store. The plastic ring on the other hand......... new water pump or find one one from a used one.
 
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  #11  
Old 04-11-2021 | 08:44 PM
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Took care of the o-ring and retaining clip with new. The old clip had one damaged “tooth”. These parts have been R/R’d 5x by the dealer before I removed it for this repair. I guess 6x was the charm. Still leaks... A detailed look at the male end of the hose confirms a worn and pitted tip. The bad male pipe combined with a broken clip guaranteed this would not seal around the o-ring.
Tomorrow, I’ll check with the dealer for availability but knowing Jag/LR, it will only be sold as an outlet hose assembly. That said;
If any of you have an old hose that you replaced but has a tip that looks better than mine, I’m interest in buying it from you.

 

Last edited by Quietgiant; 04-11-2021 at 08:49 PM.
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Old 04-11-2021 | 10:35 PM
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Originally Posted by Quietgiant
Took care of the o-ring and retaining clip with new. The old clip had one damaged “tooth”. These parts have been R/R’d 5x by the dealer before I removed it for this repair. I guess 6x was the charm. Still leaks... A detailed look at the male end of the hose confirms a worn and pitted tip. The bad male pipe combined with a broken clip guaranteed this would not seal around the o-ring.
Tomorrow, I’ll check with the dealer for availability but knowing Jag/LR, it will only be sold as an outlet hose assembly. That said;
If any of you have an old hose that you replaced but has a tip that looks better than mine, I’m interest in buying it from you.

I’ll take a picture of mine tomorrow to compare yours looks to be in the same shape as mine I think.
 
  #13  
Old 04-12-2021 | 09:29 AM
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Don’t make fun of mine... it’s a little beat up but no leaks.



But might you as well get a new one if it’s easy to attain.
 

Last edited by Oxidizer2k; 04-12-2021 at 10:18 AM.
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  #14  
Old 04-12-2021 | 10:53 AM
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Yours might be a little beat up and ugly but if my eye is accurate, yours is about 3mm longer. Probably why mine is leaking. See... size does matter...😎
 

Last edited by Quietgiant; 04-12-2021 at 10:56 AM.
  #15  
Old 04-12-2021 | 11:33 AM
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Yes it is longer, which makes me wonder what your part is supposed to go into.
 
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Old 04-12-2021 | 12:59 PM
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I suspect the tip must have broken off inside the WP and hopefully expelled when it was removed and all coolant purged . I seem to recall sweeping up bits of debris and broken plastic without significance registering. Before all this is over, I’ll fully drain the system again and look for pieces. Otherwise, all I can do is be aware of temps. Should a blockage does occur, it will likely be at the thermostat.
BTW-It does not appear the part is available without buying the entire hose assembly.
 
  #17  
Old 04-13-2021 | 08:48 AM
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I should probably get a replacement too. I don’t know how much longer I can get away with it being in rough condition.
 
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Old 04-13-2021 | 09:47 AM
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I’ll buy a backup if you find replacements.
 
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Old 04-13-2021 | 02:40 PM
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Originally Posted by Quietgiant
I’ll buy a backup if you find replacements.
I’ll have to get the entire hose to get that one part unfortunately.

https://www.carid.com/eurospare/engi...-c2z28258.html
 

Last edited by Oxidizer2k; 04-13-2021 at 02:45 PM.
  #20  
Old 04-13-2021 | 07:50 PM
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I managed to patch a broken one recently as a "get home" measure, but still found small drops of coolant on the belt tensioner. Just replaced the pipe, which comes as part of a single assembly with thermostat hose and the drops are gone
 


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