Oil pressure rise revisited

[THerman]

Was bore the other night and was reading through my service manual...



I have the intermittant no oil pressure... .

I also had my oil pressure jump after a change... . (instead of reading half gauge, reading just below top mark)



The manual states that if the oil pressure rises above a certain value (bad memory sorry) the gauge will read 15 degrees below the top mark until pressure drops into the normal zone... . if pressure drops below the normal range, the gauge will read 15 degrees above bottom mark, again until it rises back into the normal range... . if there is no pressure you will get the zero reading and alarm... .



I've noticed a few that noticed a jump in oil pressure after an oil change... .



Thought I might throw this in to get some thoughts... . did you notice a jump in oil pressure just before you started losing it completely? May be a connection.



It also seems to suggest that my bad sender is normally reading too high, then at times sends nothing back at all!



Thoughts?



Tod

 

[Happy Camper]

I changed oil 40 miles ago and did not see a rise in pressure BUT today on the way to town the pressure dropped to 0 then went back up to aprox 40 then dropped to 0 and stayed there!!! WHAT GIVES?