2011 XKR. So far no worries (I think), but it seems a terrible amount of time for my engine to cool down after driving. I drive from work to home, about 20 minutes; and 2 hours later the engine is still VERY warm. Should I worry?

 

Not in my experience. These engines run very hot and stay hot for a good long while just as you describe.

You can assuage any fears by purchasing a cheap ELM327 OBDII reader which will allow you to monitor your engine coolant temp, among many other things, in real time via an app on your mobile phone.

Enjoy the ride :-)

Edit: just noticed you have a later model XKR (X150). Imagine the same applies (this sub-forum is for the earlier XK8/R's - X100).

 

I've moved this thread to the appropriate model XK/XKR section for better response

 

No you shouldn't in general. Think about it. You have a large 5.0 liter engine in a tight engine bay with vanity covers and an under scuttle. The under scuttle serves a purpose which is to help direct air through the bay while driving.

So now you've stopped and there is no where for the engine heat to go, except to slowly dissipate over time. I've left my hood open after a drive and it still takes a long time to cool.

If you're worried, download the Torque app from the google play store to your phone, plug in a OBDII dongle and you can occasionally check the coolant temperature.

 

Thanks so much! It does make sense...there are no warning lights, and I've never owned a car with such might. The nature of the beast I guess!

 

Thanks so much! It does make sense...there are no warning lights, and I've never owned a car with such might. The nature of the beast I guess!

 

I'd hang the vanity cover on your garage wall and not be vain. Only be concerned if the fan runs after the car is shut off. That's the only indication that the car is running warmer than 'ideal'. The fail safe dash lights come on once it's too late. Southwest will probably have a couple days when it runs warm.

 

Agreed. They do aid minimally with cabin quiet as they are insulated (I definitely noticed it in my XJ Super V8), but those cars are meant to allow conversations at a whisper. The insulation certainly doesn't help with heat dissipation.

The XK is just loud by comparison and I doubt one would notice the slight noise increase if it was removed.

 

I read somewhere that the engine cover helps keep engine heat off of the hood and it may do long term damage to the hood paint if removed. Sounds possible... Can anyone verify this?

 

Sorry, bonnet. I forgot where i was

 

Not to worry shemp. I think it's a bit o' urban legend/ wives tale, but at any rate, your bonnet is insulated too.

Even if it didn't, if paint jobs survived 60's muscle car engine heat (didn't have hood liners), today's cars will too.

The liner on my 86 VDP disintegrated by heat and age. I drove it for three years before replacing it. I added it to reduce sound. Paint was never affected.