Now it makes sense. That's exactly what it's doing.
I had a hunch the gage or line was screwed up.
: The cold oil pressure should be in the 25
: pound range as you increase the RPM's the
: pressure will drop a few pounds. This is
: caused by the external oil pump. The F head
: has a poor oil pump design.
: --Previous Message--
: I have installed two good quality oil gauges
: on my FC. I used a tap off the block (there
: are two) and plastic line (Replaced twice)
: Truck is in 60 degree garage.
: oil lines are not bent our crimped.
: Oil is fresh 30 weight. At start oil
: pressure goes to 80 plus after it reaches
: 160 temp it drops slowly to 40-45. At RPM it
: goes up 8-10 lbs.
: I know nothing about the engine other then
: it runs nice.
: Any suggestions??