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Old 07-24-2019, 05:09 PM
97 SL320 97 SL320 is offline
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Quote:
Originally Posted by Mxfrank View Post
This allows the ECU to implement a dynamic temperature range that's correct for each operating condition. "Normal" may be anywhere from 170-240F. So no gauges for you.

Can you say altering engine temps to control emissions on the test rollers then changing the operating temps in normal use so as not to cook the engine in the long term?

Quote:
Originally Posted by Mxfrank View Post
97: I can't put my finger on the flow diagram at the moment. Coolant enters a blending chamber from the bypass, heater return and radiator. This is where the thermostat lives, reacting to the blended temp. From there it enters the pump inlet, and is pumped into a gallery along the right side of the block, and from there distributed through the block and head. The block drain is on the right side water gallery, all the way at the back. Here's the blend chamber:
Thanks. It looks like the temp sender in the pic is measuring cooled water after it leaves the radiator and / or suction side of the pump, this won't give an accurate representation of maximum engine temps. With the original stat gone, the bypass is in constant operation adding to the mess.

I'd be very interested in temps just prior to the new stat and at the radiator inlet, these are the temps that really matter.

Last edited by 97 SL320; 07-25-2019 at 06:30 AM.
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