Daniel,
Relax man, no reason to get pissed off.
You seem to be missing the point. It's all about load, and fuel burn with small unit heat exchange machines.
I don't think your "sending unit" is faulty. I just think you need to run it a little harder.
That said, Listen to what Glynn from the UK suggested, pinching off the low pressure bypass that is fed by your waterbox thermal bypass valves may very well be the issue, if the water can not Pre-heat, your HXers will never get it very high, so check the low side.
I do have a question for you, with an added suggestion:
It doesn't do much good to warm this machine up more than 3 mins. or so, at some point you have to put it under a load. You said it will hold 14.5"hg?
Did you cap off the vac port and run it full throttle consistently at 14.5"hg?
You do that for 5 mins. it should heat up right quick, but it has to be consistently under load....running it full tilt with no load is just not gonna put the stress on the blower, which in turn puts stress on the engine. Units that Capture blower heat and engine heat need the load....period.
Do this and report back.
Also how much "bog" do you hear when you cap it off? if it's noticeable and the governor isn't kicking in to keep the rpms up, you should bump the throttle.
Then if you have the same luke warm water temps we can look at possible problems.
Thats about all I can do from here, Mikey's check just got returned for tech support.
Maybe i can get Olson to put TW on here for an hour, he's a legend on these Legends.
"
