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Old 08-25-2012, 02:36 PM
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Removing Pentastar Engine Cover

I'm thinking of removing the engine cover as I cannot see any major functional use for it. I'm hoping that without it, the engine may have more/better air circulation. I don't have any heating issues (18,000 miles and 504 hours) but anything to help - especially this summer.

I've read numerous threads on other forums and the general consensus is that it probably traps some heat, reduces engine noise but is mostly for cosmetics.

I think that unless it channels air to some engine components, it will just trap some heat. Although that may help in cold winter months.

As for reducing engine noise, I'd have to try that and see.

Has anyone taken theirs off and any negative consequences?
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Old 08-25-2012, 04:46 PM
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Re: Removing Pentastar Engine Cover

i think it makes no difference - driving faster in cold air makes your jeep cooler
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Old 08-25-2012, 07:53 PM
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Re: Removing Pentastar Engine Cover

Suspect you could do more by removing the front belly pan. Mine is running 206F coolant, 120F IAT and both are 20F too high IMNSHO.
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Old 08-26-2012, 11:12 PM
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Re: Removing Pentastar Engine Cover

Checked the cover of my 3L CRD GC. There is padding underneath. So other than cosmetic, it also provides a noise dampening function. I can't see that is has any airflow function. If anything it traps the air. This is not necessarily a bad thing. The engine is cooled internally anyway. The outside doesn't matter. If the cover has any temperature related function at all, it is that it helps maintain an even temperature over the head which otherwise might be differentially cooled by cold air flowing over it front to back. In frigid climates, people put blamkets over their engines at night. Perhaps the covers serve a similar function. But what would I know, I'm not an engine designer.
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Old 08-26-2012, 11:23 PM
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Re: Removing Pentastar Engine Cover

Quote:
Originally Posted by BobT View Post
Checked the cover of my 3L CRD GC. There is padding underneath. So other than cosmetic, it also provides a noise dampening function. I can't see that is has any airflow function. If anything it traps the air. This is not necessarily a bad thing. The engine is cooled internally anyway. The outside doesn't matter. If the cover has any temperature related function at all, it is that it helps maintain an even temperature over the head which otherwise might be differentially cooled by cold air flowing over it front to back. In frigid climates, people put blamkets over their engines at night. Perhaps the covers serve a similar function. But what would I know, I'm not an engine designer.

you didnt say you were removeing yours but it seems like i just read somewhere that on the diesel it also provides protection from being injured by a fuel leak as there are parts of youre fuel system that have pressures in the thousands of pounds of pressure like 23,000 psi!!! although im sure it would cut thru that plastic like a water jet cutter so who knows
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Old 08-26-2012, 11:24 PM
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Re: Removing Pentastar Engine Cover

Suspect cooler air over #2 might not be a bad idea...
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