OK I must be jinxed. In my previous post I told you what my oil pressure guage was doing. I removed the regulator pak in the alternator and the brushes are 1/2" long - almost like new. Put it back in and checked the charging voltage. 13.37v at idle and 13.76 volts at 2000 rpm - this I accept as normal since the battery is on a Battery Minder maintainer all the time the car is no used so the battery is always fully charged. Engine reaches operating temp - same problem with oil pressure guage. Last fall before storage I had the dealership replace the timing chain tensioner and upper chain guides - did not have time - timing chain was changed earlier in the year. They also changed the oil and filter at the same time. They suggested and used Quaker State 10W30 along with a Mercedes brand oil filter - car had previously been using Pennsoil 10w30. With only 1200 miles on the oil change I decided to change the oil to Castrol Syntec 5w-50 and used a Mann filter. When I started the car the oil guage stayed at "0" for 2-3 seconds then shot up to 3 bar and stayed there. SUCCESS!! Drove the car for 100 miles and the needle stayed pegged> Yes-s-s-s It's cured! NOT. Now I have a different problem. Now instead of the needle falling slowly - it stays pegged. The new problem? As soon as the key is turned on - without starting the motor - the needle pegs at 3 bar and stays there - engine running or not - it drops to "0" when key is turned off. Since I already put in a new oil pressure sensor and cleaned and made sure the connections to it were good - WHAT GIVES?? This does not make sense - what should I check next???
Any help appreciated
Morris