Discovery I Talk about the Land Rover Discovery Series I within.

Temp rising.

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Old 05-07-2014, 08:58 PM
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Default Temp rising.

6pm, 75mph on flat I-95, 83deg, a/c on. Temp running at 206! Just lovely...
 
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Old 05-07-2014, 09:15 PM
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uh oh...hopefully, it's something simple...low coolant, stuck t-stat, inop fan...keep fingers crossed it's not head gaskets!
 
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Old 05-07-2014, 09:16 PM
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Check for radiator obstruction, if old copper may need a new one some say rod it but money better spent on new imo , aluminum is like $200 on eBay

Check the fan clutch and thermostat
 
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Old 05-07-2014, 11:58 PM
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Originally Posted by FLA Rover
6pm, 75mph on flat I-95, 83deg, a/c on. Temp running at 206! Just lovely...
Check your electric fans, they might have taken a crap. Happened to me.
 
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Old 05-08-2014, 04:50 AM
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Originally Posted by abran
Check your electric fans, they might have taken a crap. Happened to me.
fans working, pretty sure its the rad. gonna try to rod it out. dont want a new rad with plastic tanks, and dont wanna drop cash for brass. we'll see what happens. and i did check for low coolant and leaks...
 
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Old 05-08-2014, 05:48 AM
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overheating at speed is a flow problem, so yea, check the rad and coolant hoses.
 
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Old 05-08-2014, 07:35 AM
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Are we referring to a D1 here?
If so and before spending money take the time to clean the radiator and condenser matrix's.

Now that is not just a cat lick wash!--it means removing the top fan shroud section, finding some tools like a couple of 13mm wrenches and removing the top radiator support brackets. You can then push the radiator back to observe the hidden cavity where leaves, and junk waste paper like fast food wrappers dwell.
Clean with soap and a gentle hose pipe, (pressure washers bend cooling fins).

Better still wander into a professional A/C supplies shop and ask for foaming coil cleaner. This stuff once sprayed and and left will eat dirt off the matrixers and then rinse with water.
Buy enough and you can then clean the condenser sections of the your household A/C system if you have one at home. That will save you a bundle on electricity charges to boot!

A copper /brass D1 radiator is close to about $800 for the real thing even cheap Chinese one is close to $400, reason enough to take care of it.
T/V
 
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Old 05-09-2014, 06:06 PM
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Originally Posted by tuercas viejas
Are we referring to a D1 here?
If so and before spending money take the time to clean the radiator and condenser matrix's.

Now that is not just a cat lick wash!--it means removing the top fan shroud section, finding some tools like a couple of 13mm wrenches and removing the top radiator support brackets. You can then push the radiator back to observe the hidden cavity where leaves, and junk waste paper like fast food wrappers dwell.
Clean with soap and a gentle hose pipe, (pressure washers bend cooling fins).

Better still wander into a professional A/C supplies shop and ask for foaming coil cleaner. This stuff once sprayed and and left will eat dirt off the matrixers and then rinse with water.
Buy enough and you can then clean the condenser sections of the your household A/C system if you have one at home. That will save you a bundle on electricity charges to boot!

A copper /brass D1 radiator is close to about $800 for the real thing even cheap Chinese one is close to $400, reason enough to take care of it.
T/V
Thanks man, and yes it's a D1 hence posting on the Discovery 1 page! Great maintenance tips, gonna give it a go...
 
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Old 05-09-2014, 09:04 PM
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An indy rad shop near me does them carry in for about $75. Rule of thumb is no more than 10F difference between top and bottom rows. Fans running should suck paper towel against grille. You can mount fan blade reversed, or replaced AC condenser fans can be wired wrong polarity. And belt route of course.
 
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