F-Type ( X152 ) 2014 - Onwards

Any idea what this is? Dealer said it's dirt...

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Old Jul 2, 2019 | 08:27 AM
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Default Any idea what this is? Dealer said it's dirt...

So I was washing the car over the weekend and when I popped the hood open to treat the plastics, I noticed this in the back of the engine. It looks a lot like what my BMW spit out when the water pump went out. Any thoughts? I sent these pictures to my service advisor and he said his master tech told him "It's nothing, just dirt." That just doesn't sound right to me...

PS. Jaguar replaced the water pump and supercharger about 10k miles ago.

Thanks for any help on this fellas

David






 
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Old Jul 2, 2019 | 09:15 AM
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Yea it does look like dirt. An unusual place for it, especially since it seems to be isolated right where valve cover gasket would leak. Spray the engine bay down, and clean that area, then wait to see it if returns.
 
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Old Jul 2, 2019 | 10:01 AM
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Hard to tell just from a photo. I could see it as dirt or rust from just photos. The best way to tell is to clean one small area. If the metal is damaged underneath, it's not dirt.
 
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Old Jul 2, 2019 | 10:20 AM
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The only definitive way to tell is to Taste it!

Yep, really.

Dab it with your finger...if it's sweet then it's Glycol (Anti freeze).
 
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Old Jul 2, 2019 | 12:21 PM
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Originally Posted by Tel
The only definitive way to tell is to Taste it!
Umm.. there are several other ways to definitively tell whether it's coolant or just dust (litmus paper?, hand loupe? Chemical analysis?) but tasting is one way. Or you could just smell it, because it does have a unique smell. Good thing these use propylene glycol and not ethylene glycol (which interferes with the nervous system, heart, kidneys and lungs' ability to work). You don't want to taste that stuff.

To the OP, the location is suspect. It could be coolant seepage, and it could be coolant or oil seepage collecting dirt/dust. Doesn't look like much. Just enough to dampen the surface slightly. Wash it down with some parts cleaner or brake cleaner to remove the residue that's collecting the dust. See if it returns over time.

 
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Old Jul 2, 2019 | 05:36 PM
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looks like coolant seepage to me too but hard to tell from photo alone
 
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Old Jul 2, 2019 | 06:30 PM
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I'd have the technician at dealer who said it wad dirt taste it.
 
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Old Jul 2, 2019 | 07:21 PM
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The taste method has served me well for over half a century (and I still have partial kidney function). That looks like coolant residue and the location would certainly support that conclusion. As previously mentioned, coolant residue will taste sweet on the tip of the tongue.
 
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Old Jul 3, 2019 | 06:14 AM
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Originally Posted by Unhingd
The taste method has served me well for over half a century (and I still have partial kidney function). That looks like coolant residue and the location would certainly support that conclusion. As previously mentioned, coolant residue will taste sweet on the tip of the tongue.
Yup I concur...3 decades of tasting and no illllllllll afflectssssssssssss n n n n n noted hh h h h here;-)
Same with brake fluid to name but a few. Can't get enough of the stuff, keeps the joints well lubed!

DISCLAIMER FOR PEOPLE BORN BETWEEN 1970-1980
Use Common sense and drink the bloody stuff you dumbass ;-)

Commomn Sense is commonly known as the ability to:
Make sound practical judgment concerning everyday matters, or a basic ability to perceive, understand, and judge that is shared by nearly all people. The first type of common sense, good sense, can be described as "the knack for seeing things as they are, and doing things as they ought to be done
;-)
 
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Old Jul 3, 2019 | 06:49 AM
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Originally Posted by Tel
Common Sense is commonly known as the ability to:
Make sound practical judgment concerning everyday matters, or a basic ability to perceive, understand, and judge that is shared by nearly all people. The first type of common sense, good sense, can be described as "the knack for seeing things as they are, and doing things as they ought to be done
However, common sense is far from common, IME.
 
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Old Jul 3, 2019 | 07:46 PM
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Originally Posted by Tel
DISCLAIMER FOR PEOPLE BORN BETWEEN 1970-1980
Use Common sense and drink the bloody stuff you dumbass
Wut?
 
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Old Jul 3, 2019 | 09:06 PM
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I sent a few more photos to my SA and the car is scheduled to go in on Monday. He said they would take a look at it. I will keep you gents posted.

Thanks for your replies and input 👍

David
 
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