XK / XKR ( X150 ) 2006 - 2014

2012 XKR convertible need advice head gasket or motor?

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  #21  
Old 09-13-2024 | 09:22 AM
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Originally Posted by sony2000
Assume it is is the head gaskets, and open up the motor. Once inside judge the condition of the cylinders. Probably send the heads out for rebuild.
Check the shaft in the turbo for bearing wear Then close it up, and all should be all right. Check the wastegate is operating well. Qualified mechanic is needed incase there are other complications.
Originally Posted by sony2000
Personally because of the computer's system complexities, I would do a top overhaul instead of a switch. The price of buying a second engine with a few thou fewer miles, could equal the total price of the existing engine overhaul. Costs would be gasket kit, 2 heads overhauled, new turbo bearings, and a good mature mechanic that can estimate his time. All that, plus 30% incase of problems $.
What turbo? ​​​​​ The XKR engine is supercharged.

White exhaust smoke after the engine has warmed up and reached normal operating temperature indicates water in the fuel. That can be from a bad head gasket or fuel in the tank that's contaminated with water. A cylinder compression test will disclose if a head gasket is bad.
 
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  #22  
Old 09-13-2024 | 10:08 AM
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Default Water in the fuel ?

Originally Posted by Stuart S
What turbo? ​​​​​ The XKR engine is supercharged.

White exhaust smoke after the engine has warmed up and reached normal operating temperature indicates water in the fuel. That can be from a bad head gasket or fuel in the tank that's contaminated with water. A cylinder compression test will disclose if a head gasket is bad.

That's very possible first of all it was not a flood car at all and it's not a salvage vehicle title is free and clear actually perfect
Now the possibility that water is in the fuel it's very possible I spoke with another mechanic and he said that it's also possible that coolant can get mixed in from a faulty oil pump
It could still very well be that it has a bad head gasket but I don't think there's any major internal damage just because every time I restarted there's no knocking noises and the engine runs smooth for about 2 minutes and quiet it's only after I believe the thermostat opens that's something get mixing.
 
  #23  
Old 09-13-2024 | 01:02 PM
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Turbo or supercharged. Same thing. Different drive. Supercharged is older technology, until they realized the exhaust could do the drive as well, and no direct drive needed.
 
  #24  
Old 09-13-2024 | 01:17 PM
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Originally Posted by sony2000
Turbo or supercharged. Same thing. Different drive. Supercharged is older technology, until they realized the exhaust could do the drive as well, and no direct drive needed.
oh boy. where to start!
Bottom line, never, ever saw a bad SC bearing allow for smoking.
wj
 
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  #25  
Old 09-13-2024 | 02:39 PM
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Try this MminyanUSA: Since the smoking starts as the pressure builds in the cooling system, try running the car without the tank cap tight. No pressure, no smoke, in theory. Possibly the reverse would happen. Carbon vapor would enter the coolant and change its color. Just thinking out loud....
 
  #26  
Old 09-13-2024 | 04:45 PM
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Default I think it's time for a sale

Originally Posted by sony2000
Try this MminyanUSA: Since the smoking starts as the pressure builds in the cooling system, try running the car without the tank cap tight. No pressure, no smoke, in theory. Possibly the reverse would happen. Carbon vapor would enter the coolant and change its color. Just thinking out loud....
Just because there are too many variables that can go wrong and I don't have a neighbor that can check it for me without getting the car towed to a diagnostic center that wanted $400 just for the initial testing. I am putting it up for sale anybody interested make me an offer I'm already into it for a lot of money it's $120,000 car minus depreciation in excellent body condition. I'm into it for a little under 20k . Clean Carfax clean title. The only other thing a reputable mechanic said that it's could be the oil coolant pump because that's more common he said he never seen in many years head gasket going on this car.

for now it's going for sale

thank you all for your help there's just too many variables to go down the rabbit hole and then end up selling it anyway. If anybody lives in the Northeast I'm more than happy to give them access to the car and pay them if they think they can figure something out.

I'll be looking for another one in good condition after I free up some parking space


 
  #27  
Old 09-13-2024 | 05:56 PM
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An inoperable XKR. No proper diagnosis on what is wrong with it.
It may not be a salvage title… but the price is going to reflect the condition.

Jaguar will sell me a certified refreshed engine…. Have you seen the price of that?!
 
  #28  
Old 09-13-2024 | 08:21 PM
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Originally Posted by sony2000
Turbo or supercharged. Same thing. Different drive. Supercharged is older technology, until they realized the exhaust could do the drive as well, and no direct drive needed.
That's like saying that men and women are the same thing because we're Homo sapiens, with different brains, plumbing, and accessories.

 
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  #29  
Old 09-13-2024 | 08:31 PM
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Originally Posted by sony2000
Turbo or supercharged. Same thing. Different drive. Supercharged is older technology, until they realized the exhaust could do the drive as well, and no direct drive needed.
Yes, the supercharger was invented first, but the turbocharger wasn't far behind. Both have advantages and disadvantages.
https://www.motortrend.com/features/...ers-a-history/
​​​
 
  #30  
Old 09-13-2024 | 09:09 PM
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MminyanUSA: I estimate $6K to fix the top end. Total cost $26K
Sell it as is for $6K-$10K. You lose $10 to $14K, and will be without a nice beautiful car..
All for simple head gaskets on a Ford V8.
 
  #31  
Old 09-13-2024 | 09:43 PM
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Originally Posted by sony2000
MminyanUSA: I estimate $6K to fix the top end. Total cost $26K
Sell it as is for $6K-$10K. You lose $10 to $14K, and will be without a nice beautiful car..
All for simple head gaskets on a Ford V8.
@MminyanUSA hasn't had his XKR inspected and diagnosed by a competent technician yet, and you've already declared it to be a total loss! That reminded me of one of my all-time favorites:

And it's NOT a Ford V8!
 

Last edited by Stuart S; 09-13-2024 at 09:44 PM.
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  #32  
Old 09-13-2024 | 10:27 PM
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Originally Posted by MminyanUSA
found out after the fact that the oil was milky car would start and then up after a few minutes the smoke from the tailpipe would turn white and then it would stall out.
If you ran it with milky oil, you most likely need a bottom end as well.
 
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  #33  
Old 09-19-2024 | 09:21 AM
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^ ^ ^ ^ ^
That
 
  #34  
Old 09-20-2024 | 07:33 PM
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Man, I saw the ad and came here to read this.

You are (unfortunately) selling from a position of weakness if you sell it now. Invest 1K with a shop to diagnose it. Get that in writing and then decide what to do. Your $1K spent may earn you more in the sale. Or it may not.

As someone that took off the intake (a super easy job), I can assure you that the work to get the head off (if it is indeed a head gasket) will need to be done by a pro (since you are outside in the elements.) At least that is my view.
 
  #35  
Old 09-21-2024 | 09:09 AM
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Your getting a PILE of bad advice from someone who thinks turbos and super chargers are the same thing?
When you find yourself riding a dead horse...It's best to dismount!
.
.
.
 
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  #36  
Old 09-21-2024 | 01:12 PM
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With your opinion clubairth, and 4 bucks, I can get a ride on the bus.
 
  #37  
Old 09-21-2024 | 02:14 PM
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FOUR BUCKS for a bus ride? Damn, I'm even older now. I used to pay twenty five cents.
 
  #38  
Old 09-21-2024 | 02:31 PM
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Originally Posted by Cee Jay
FOUR BUCKS for a bus ride? Damn, I'm even older now. I used to pay twenty five cents.
Was that the short bus?

 
  #39  
Old 09-22-2024 | 09:24 AM
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@sony2000 is riding the CANBUS.
 
  #40  
Old 09-23-2024 | 04:14 AM
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Yeah that's a head gasket and might have a cracked head.You just need to send that thing to a jaguar dealership and let the service department fix it
 


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