What oil temp Temperature gauge do I trust, Just installed the new Pressure & CHT guages Options

[jc914]

I just finished cleaning all the inside glass of all my gauges (what a difference they look NEW) So I toke her out in the Miami weather tonight the outside temp was a nice hot 80 degrees. I drove my 914 for over an Hour an Half I drove her really hard and fast up 80MPH:driving: . The OEM temp gauge only read a 1/4 up and it never even got half way up (IMG:style_emoticons/default/piratenanner.gif) . Once I got home I opened the engine lid and the Dip stick Temp Gauge read 250 degrees. ( note i have checked the dip stick boiling point yesturday before i installed it.) If My 914 is running hot what what might be the causes and which gauge should i trust. (IMG:style_emoticons/default/devil.gif) (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif) (IMG:style_emoticons/default/confused24.gif)

The car idled at 1 the whole night when i got home i turned her of and then on again after like 5 minutes and it started with some gas on the peddle.

thanks
JC

[jim_hoyland]

Ferg is right; the dip stick gauge is pretty accurate. I used one to verify my sender and gauge were properly matched.

If thesender is in question, you can remove it from the case and did it into boiling water. That will tell you where 200-212 is on that gauge. If you pull the sender, be sure to use a new crush washer when it's replaced.