[jmille]

Went out this morning started her up. Perfect 7.5 psi fuel pressure reading. Took my trusty heat gun and began blowing hot air on the gage. Within a minute the gage read 2 psi. Wraped gage in a cold towel and were quickly back to normal. Pulled gage drained glycerin and left the plug out so the gage was vented. Started the engine 7 to 8 psi. No change when we heat the gage. Needle is a little jumpy without the dampening that the glycerin provided, but it reads right at all temps.

Thanks for the tip. I would have looked at a lot of other things before the liquid filled gage.

Jerry Miller