Thread: K series heat

Originally Posted by beforethevision

On that note of heat...

The K series (1.8/2.5) run very hot, esp for australia. thermo is 90 something degrees, and fans come on at 106, full cooling at 120. This doesnt leave a great deal of room for loading, and wears things out while heating the cabin more than it needs to.

QED do a remote thermostat that can reduce thermo temps to 78/85 degrees. It also removes the thermo from a cold water line, to a hot one, reducing problems with surge and shudder. (IE it opens, but closes again when you rev it, as it recieves lots of cold water, then reopens when its overwarm) Has anyone tried it? anyone think its worthwhile/not good?

Even modifying the engine temp sensor wiring to suggest the engine is 10% hotter than it is may cause the fans to come on earlier, but im keen to ask, what other things does the engine temp affect in the MEMS ecu?

Cheers!

Hi beforethevision....do I know youe from somewhere
If I have 1.8 I would definitely go with remote thermostat with lower temp thermo like QED thermostat...and put the new multilayer HG i think it will be perfect for 1.8...

I have KV6, still thinking on how to move the thermo further away from the head...or at least mix cold and hot coolant before it enter the head...At the moment I have removed the original oil cooler and put an external oil cooler just behind the bumper bar.

Is the weather hot enough in sunny Queensland to do away with a thermostat all together. I know that is a fix for the overheating/heat related issues - but only works in hotter climates where cold starting is not an issue.

Garry

Originally Posted by garrycol

Is the weather hot enough in sunny Queensland to do away with a thermostat all together. I know that is a fix for the overheating/heat related issues - but only works in hotter climates where cold starting is not an issue.

Garry

You should never remove a cooling system thermostat. To do so can actually lead to over heating as the coolant moves through the radiator too quickly for effective heat transfer.

Originally Posted by BigJon

You should never remove a cooling system thermostat. To do so can actually lead to over heating as the coolant moves through the radiator too quickly for effective heat transfer.

I agree with BigJon...but what about a small bypass?

Not quite true - as the coolant now circulates through the system more quickly the hot water visits the radiator more often - the radiator is still taking heat away.

1.8 l freelanders suffer thermal shock because of the thermostat - hot water is kept in the engine and cold water in the radiator - when the thermostat finally realises it is too hot and opens it lets too cool water into the engine - causing major thermal shock - just like putting cold water in a non running boiled engine.

Originally Posted by garrycol

Not quite true - as the coolant now circulates through the system more quickly the hot water visits the radiator more often - the radiator is still taking heat away.

1.8 l freelanders suffer thermal shock because of the thermostat - hot water is kept in the engine and cold water in the radiator - when the thermostat finally realises it is too hot and opens it lets too cool water into the engine - causing major thermal shock - just like putting cold water in a non running boiled engine.

Actually all petrol FL1 (1.8 and V6) suffer thermal shock, even worst the V6. LR and QED has remote thermostat for 1.8 to reduce it but none for V6 yet.

Yeah,

I dont really want to take it out entirely, although i cant see any issues, apart from cold starts and extra thick oil. When iget funds together i will order the QED one.

Im having alot of issues atm with parts fatigue presumably due to heat, this past week has been very hot, and anything plastic under the bonnet is breaking!

Cheers!


PS Has anyone actually fitted a remote thermo? or removed the thermo from a 1.8?

Also does anyone know what the engine temp sensor effects, aside from fan speeds? Im tempted to alter it with a resistor or two to make them come on earlier.

Originally Posted by dearot

Hi beforethevision....do I know youe from somewhere

Perhaps..... :P

This site is good for social aspects including the gold coast club im in, while both here and MO give good tech support. Perhaps due to its origin as a FL only site.