Originally Posted by jerryab
Is it possible I screwed the new transducer in too far on the manifold? I can't think of anything else! I sure felt better with the old transducer, it at least read something I thought I could live with. Ignorance is bliss, but also dangerous.
Screwing the transducer on (a little) more will not alter the gauge reading. The Van's gauges are not the most fantastic in the world - I would get a mechanical know good gauge and connect it to the spare port on your manifold and run the engine on the ground. It is easy to adjust the pressure, either by backing off the the large nut - I've found 3 turns makes around 10 psi difference - or by removing the large top hat thing and taking out washers. Or sometimes both, I've seen washers put under the spring under the adjuster.
If you don't believe the gauge you have, make sure you get on you trust to get a 'truth' reading.
A man with 2 watches will never know the correct time!