Hey all,

I'm wrapping up the cooling system maintenance and an ignition tune up on my Disco in the coming weeks, and I keep hearing about this 180ºF soft spring thermostat. I live in NYC, winters are generally not too harsh, and summers can be pretty hot.

With the 180ºF thermostat, do I risk an excessive rich mixture in the winter months, or will I be OK for the most part?

I'm going to be replacing the water pump, hoses, radiator, and fan clutch during this service.

Let me know your thoughts, thanks!

- H.

 

I have almost the same question. I live in WY where the winters are harsh and cold and the summers are hot! Should I switch to the cooler thermostat or stay with the factory.

 

You will not experience any cold weather issues other then our heater taking a couple more minutes to get to the temp you want.

 

I just put the 180 in and my motor is so much happier.. I even had lifter noise that quieted down from the higher temps. I'm running 188 highway 194 in a drive through window

 

Ok Thnx!

 

Gotta get me one of these.

Question.. I thought I remember reading years ago the thermostat was the way it is so that coolant could bypass it and go straight to the heater core. True? If so seems it wouldn't even change heating times

 

With out a shadow of a doubt I would HIGHLY recomened going with the motorad 180 thermostat. Every one who I have spoke to about this are amazed how cooler there motors runs in the summer and have had no problems in winter. If you have an Ultra Gauge then it will show you when its in open or closed loop. Some have said that the heater takes a wee bit longer to get to a HOT air blast but nothing excessive.. my $0.02

 

The DII t-stat is already a 180, this "soft spring" t-stat lets coolant past before it opens fully.

 

While the stock D2 stat is a 180 start to open, I thought the 82C soft spring is actually fully open at 180. Agree with the softer bypass spring allowing coolant to flow into heater circuit at idle.

If stock and this soft spring were the same temp levels, would there be all the lower temps reported by users?

 

Have the stock t-stat (D II). Is it 180 degree?

Also, is the 180 t-stat the same physical configuration as stock (i.e. a direct swap)?

DRW