Motor checked in storage, hasn't been run in a week. How close should the temp sensors be (air/coolant), 1998 Merc 250 EFI ?? DDT says AIR @ 63 & COOLANT @ 72, should they be closer. Block temp as checked with a pyrometer says 68 degrees.
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Motor checked in storage, hasn't been run in a week. How close should the temp sensors be (air/coolant), 1998 Merc 250 EFI ?? DDT says AIR @ 63 & COOLANT @ 72, should they be closer. Block temp as checked with a pyrometer says 68 degrees.
Test the resistance of the two sensors and compare with the guidelines in the Service Manual.
Normally, the temp sensors (on a cold engine) will be within 3 degrees of each other (approximately). http://www.bassboatcentral.com/smileys/wink.gif
Thanks Don, appreciate the info........... http://www.bassboatcentral.com/smileys/thumbsup2.gif