Thread: Defender Engine Bay Heat - LH guard vent

Originally Posted by Tombie

Because the air doesn’t draw out from there...

Yes, I know you've said that before, and I accept it probably doesn't make much difference in normal conditions, since a Defender bonnet is certainly not airtight.
However, in the OPs example, with water rising in the engine bay during a river crossing, I reckon some air would be forced out the top.
Personally, I'd rather take advantage of what is already there rather than start cutting new holes.

I thought long and hard about the left hand wing vent , weighed up others experience with it done , then made the cut !!.IMG_1097.jpg

Im not one for making radical changes /mods to the 130 , but this one weighed up .
The motor is new new , larger intercooler and the pdf fuel pump tweeks .Belting up the Hume mid feb at 105kms hr , the egts dipped below 400 and only rose when going up the glenrowan rise.
Then we stuck a new a/c condensor up front , rebuilt the trans case and stuck a O/D out back. The return 700 km plus trip was a 30 deg plus day and with the new gearing temps rose to a constant 500 . Hot air really pushes out the new vent ,on a run out to Charlton Anzac day we measured 85 deg at the vent, 520 egt at 105 kms hr. Used a druk unit remote temp sender attached to the inside of vent grill for engine bay air temps.
Any hot air removed from the engine bay cant be a bad thing .

Like these?

Defender guard air vents - Google Search

Yes , a tdi 200 vent cover .

Originally Posted by goingbush

My V8 Landys were always hotter under the bonnet than my chipped & boosted Td5 is,

I never get that open the bonnet and a heatwave hit you in the face like opening an oven with any of my turbo diesels like I did with my 4.4 or 5.0 V8 Landys

Sounds like like it might be worth giving it a go on the old v8 county
After towing a couple of tonne of hay in the middle of summer she gets a bit warm under the bonnet
Ill have to have a look where the AC system sits on the passenger side guard

Any one had a go one (v8 county)?