Chas Guirey Posted September 24, 2002 Share Posted September 24, 2002 Can one of you please give me some advice - I have bought a vauxhall classic 1600 1998 in immaculate condition. When the car is cold the oil pressure goes straight to 3 bar and doesnt go any higher regardless of how fast the engine is running. However after a long run when the engine is hot the oil pressire drops to just above the red mark on the gauge at tickover. Can anyone tell me what the pressure should be and what I should be looking at..........other than a big bill! Thanks Chas Link to comment Share on other sites More sharing options...
F355GTS Posted September 24, 2002 Share Posted September 24, 2002 Chas Sounds about right to me! Mark Link to comment Share on other sites More sharing options...
chrisiden Posted September 24, 2002 Share Posted September 24, 2002 Dropping to nothing at tickover (when changing gear or stationary) is 100% normal, the gauge will then spring up again to just about 2 or 3(maybe) bar when you put you foot back on the gas. Edited by - chrisiden on 24 Sep 2002 21:41:12 Link to comment Share on other sites More sharing options...
Super_Rich_Bernie Posted September 25, 2002 Share Posted September 25, 2002 That's exactly what mine does, just over the red with oil hot and ticking over at 800revs, half way up the guage at 4000revs - using Castrol Synthetic oil. The guage doesn't spring up though - I think its heavily damped.You have nothing to worry about. Jonathan Link to comment Share on other sites More sharing options...
Buda Posted September 25, 2002 Share Posted September 25, 2002 Check the earths.. mine did this (its a K) it was the earths, it reads 2 on tickover and 4-5 going. Link to comment Share on other sites More sharing options...
Chas Guirey Posted September 25, 2002 Author Share Posted September 25, 2002 Dear All thanks for your reassurance - blind panic was setting in. I will get a smiley face sticker to put over the gauge which should do the trick. Being an engineer I think I tend to look for problems with all things mechanical. I must admit that all the cars I have had in the past have ticked over at about 1.5 bar and 4 bar at higher revs. Look forward to seeing some of you at Brands the weekend after next regards Chas Link to comment Share on other sites More sharing options...
Graham Sewell Posted September 25, 2002 Share Posted September 25, 2002 Probably in order of difficulty, check the voltage regulator, the earth should be the engine block so can be assumed unless the engine to chassis/battery connections are knackered, the oil pressure sender. Possibly see if you get different readings with another gauge (at the festival or club meet?) by extenting the wiring... Or ignore it completely. In an old Opel Manta that I owned, I got through 3 pressure senders before I gave up. The problem was that the only access to the sender was by removing the exhaust manifold. In my case the gauge started to dance around a bit and then totally died - absolute panic the first time it happened - usual disengage gear switch off engine and coast to a halt. Check oil levels, gently start engine and listen for a while and then start to trust engine - incidentally the oil warning light was not lit up. Eventually GM admiteed to a faulty batch of senders! Low tech luddite - xflow and proud! Link to comment Share on other sites More sharing options...
Smegnoguk Posted September 25, 2002 Share Posted September 25, 2002 Mine is exactly the same. Glad you posted this query because I too was worried. Not any more. Who’s looking at the Ferrari? Nobody! That’s who! (Admired by all 5 year-old boys and a surprising number of elderly ladies) Link to comment Share on other sites More sharing options...
MikeW Posted September 25, 2002 Share Posted September 25, 2002 And mine But chatting to a few people over the last few weeks and reading this post everything seems normal 😬 MikeW Link to comment Share on other sites More sharing options...
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