Vents, louvre's and other heat transfer methods
#1
03-01-2019 | 05:37 PM
#2
03-01-2019 | 06:23 PM
Three Wheeling
Joined: Feb 2019
Posts: 57
Likes: 7
when the cooling system on mine was in proper working order,it had no problem at all keeping temps normal in 105*heat 
water pump is a little small on these engines ,but the radiator and fan are very good.I know some Rover drivers have modified the coolant piping from the stock arrangement to an in-line thermostat setup like "old skool"American vehicles use.My disco is an '03 that no longer comes equipped with an engine oil cooler like '02-earlier had-I might add-back an oil cooler when I do major engine repair this spring...
water pump is a little small on these engines ,but the radiator and fan are very good.I know some Rover drivers have modified the coolant piping from the stock arrangement to an in-line thermostat setup like "old skool"American vehicles use.My disco is an '03 that no longer comes equipped with an engine oil cooler like '02-earlier had-I might add-back an oil cooler when I do major engine repair this spring...
#3
03-01-2019 | 06:31 PM
Recovery Vehicle
Joined: Jan 2011
Posts: 1,085
Likes: 264
From: StL, MO
i have two '04's. one with an oil cooler and one without. both have stock cooling systems with the exception of 180 degree thermostats. the '04 without the oil cooler runs a little cooler. it does have stock tires and suspension. the other '04 has a two inch + lift and 31 inch AT's. the both run 186-188 on the highway and 194-199 at idle.
my experience, in the U.S. Midwest, has been that the stock cooling system with a 180 thermostat is sufficient. for reference, here in Missouri we get summer temps in the upper 90's. still no cooling issues with my current setup.
oh yeah. no Dexcool for me. old school green.
my experience, in the U.S. Midwest, has been that the stock cooling system with a 180 thermostat is sufficient. for reference, here in Missouri we get summer temps in the upper 90's. still no cooling issues with my current setup.
oh yeah. no Dexcool for me. old school green.
#5
03-02-2019 | 05:46 PM
Pro Wrench
Joined: Oct 2011
Posts: 1,708
Likes: 137
From: NE PA
#6
03-02-2019 | 06:52 PM
Three Wheeling
Joined: Feb 2019
Posts: 57
Likes: 7
Noticing how small the water pump impeller is on the stock pump,i did wonder if an inline auxillary electric water pump like one of those Australian Davies Craig ones could be plumbed in to increase circulation at idle-such as stuck in gridlock at 100* with the AC blowing Have the aux. pump come on at ~210*, Certain late model cars have a variable speed electric pump instead of a belt driven one
Have the aux. pump come on at ~210*, Certain late model cars have a variable speed electric pump instead of a belt driven one
#8
03-06-2019 | 12:25 AM
Recovery Vehicle
Joined: Jun 2017
Posts: 1,236
Likes: 235
From: Alabama + Vegas + Texas
Inline 180 degree thermostat, Water Wetter, Saudi grill, passenger fender vent, AirTex waterpump, underbelly pan removed, proper bleeding, Hayden fan clutch, OEM shroud, and oversized radiator should go a long way.
You could also go to a larger oil filter which increases your oil capacity a little and you could add an oil filter heat sink onto it, as well.
*the Disco 2 hood itself is held onto its hinges by 4 bolts. There's probably a way to use longer bolts+spacers to slightly raise the rear of the hood near the windshield enough to provide some venting?
You could also go to a larger oil filter which increases your oil capacity a little and you could add an oil filter heat sink onto it, as well.
*the Disco 2 hood itself is held onto its hinges by 4 bolts. There's probably a way to use longer bolts+spacers to slightly raise the rear of the hood near the windshield enough to provide some venting?
Last edited by No Doubt; 03-06-2019 at 12:51 AM.
#9
03-06-2019 | 12:48 AM
Rock Crawling
Joined: Apr 2017
Posts: 322
Likes: 43
From: Chicago
Shane.. I beat the design flaw.
My 02’ 4.0...180 thermostat, oversized oil filter, and BMW blue meant for plastic and aluminium cooling systems=180k miles without a single head gasket failure. Until I replaced it as preventative maintenance. It was not failing/failed. I think that truck still has its original radiator and water pump too. I don’t recall ever replacing them.
And I still run close to 188-195 in daily driving traffic and all.
I first used BMW blue as I had a BMW engine Range Rover back then. Had a lot of the stuff and decided to flush it with it.
Best decision ever. I use only BMW coolant on trucks I keep, at $24 a concentrate gallon it’s not pricey either.
My 02’ 4.0...180 thermostat, oversized oil filter, and BMW blue meant for plastic and aluminium cooling systems=180k miles without a single head gasket failure. Until I replaced it as preventative maintenance. It was not failing/failed. I think that truck still has its original radiator and water pump too. I don’t recall ever replacing them.
And I still run close to 188-195 in daily driving traffic and all.
I first used BMW blue as I had a BMW engine Range Rover back then. Had a lot of the stuff and decided to flush it with it.
Best decision ever. I use only BMW coolant on trucks I keep, at $24 a concentrate gallon it’s not pricey either.