Quote:
Originally Posted by Bob Kontak
Interesting.
My 81 US had an 089 on it and I replaced with a new 090 in about 2002.
Maybe it was the "hot" setup in the 80's to replace the 090 with the 089 given a touch richer.
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Bob K.,
These two (2) warm up regulators are totally different in both its operation and function. People interchanged them in the past due to lack of knowledge or technical information. Time has changed.
WUR-089:
Vacuum assisted
Single heating element
Used in non-lambda engines
Needs a thermotime valve
WUR-090:
Non-vacuum assisted
Multi-heating elements
Used in lambda engines
No need for a thermotime valve
If you place them side by side, you will see the physical differences between these two.
With the advent of Internet, we get better information and communication each day.
Tony