Impeller replaced, good discharge (not very hot to touch); replaced head gaskets; removed VRO (one less thing to go wrong); installed temp guage mounted to one of the cylinder head bolts (reads in C and F) The overheat warning alarm goes on about 176F. I've looked at a couple manuals and I haven't found anything definitive as to the correct operating temperature and 176 doesn't strike me a particularly hot. According to one of the manuals I read it looks as though changing out the termostat and the temp sending unit are a bit involved--a lot more involved than changing a thermo on a car-- Did I misread the manual (it was one of these Clymer manuals that covers about a number of other models and years.)<br />I am thinking about disconnecting the tan wire from the temp sending unit <br />1. what is the "proper" operating temp<br />2. what is the difficulty level on changing out the termostat and temp unit (any special tools involved ?)<br />3. Is there a problem operating the engine with the temp sending unit (the tan wire) disconnected<br /><br />thanks in advance for any responses
