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Oil Pressure Gauge
Posted: Fri Oct 07, 2005 3:00 pm
by SpidersWeb
Engine warmish
Oil pressure at about 1/3
Rev engine quickly to 3-35000rpm (using WOT)
Oil pressure jumps up to past the 1/2 way mark then drops to 1/3 again
It looks like a laggy rev gauge
Is that normal, or did I break something?
Posted: Fri Oct 07, 2005 3:18 pm
by jakobsladderz
do you mean the oil pressure then goes up to 1/2 then back down? If so then yes, they are a laggy oil pressure gauge. They move the needle using a bimetal strip with a heater wrapped around it and have a time constant of 3-5 seconds or more (time to get to 90% of target), so the oil pressure probably rose to 3/4 but the needle didn't make it there.
Sounds fairly normal.
Posted: Fri Oct 07, 2005 5:03 pm
by Cookiemonster
35000 rpm! Woah!
Posted: Fri Oct 07, 2005 5:17 pm
by SpidersWeb
whoops! 3,500
Thanks jakob, just wanted to check :)
Posted: Fri Oct 07, 2005 6:11 pm
by androoz
same with my car..
Posted: Wed Oct 12, 2005 11:58 pm
by SIR GSR
Mine is kinda like that. But at the opposite end of the scale. It sits up at the high pressure, but after a spirited run up to about 180-200 km/h it drops down to about 1/2. Is this a normal thing???