alzmoore 4 Posted August 16, 2019 Report Share Posted August 16, 2019 After 5 years my 1989 SE turbo project now has an MoT and is actually on the road...!!! ...However, panic set in when I got the dreaded flickering oil pressure light and low/zero reading on the guage at idle and flickering lights on gear changes once it got warm. I have removed the sensor and fitted a temporary manual gauge and am very relieved to find 60psi at idle when cold which drops to just under 30 when hot. At 3500 I get about 50 psi (hot). Because I suffer from extreme Lotus anxiety, I'm now wondering if that is too high as it seems to be well above the manaul spec? I guess i obviously need a new sender unit. Any recommendations?. many thanks Alan Quote Link to post Share on other sites
CHANGES 1,052 Posted August 16, 2019 Report Share Posted August 16, 2019 ERR .. No that's definitely not to high .. in fact it about how they are to be fair .. On the SE you should have a drop out relay that stops the warning light coming on below 1500 RPM So that needs looking at also .. I would expect you have a corrupted signal between the two sensors within the one unit.. Its not unusual to see low oil pressure at tick over hence the drop out relay to stop the light coming on .. 30 PSI at tick when hot is quite presentable , I would prefer to see 60 psi from 2000 rpm up when hot.. But with an engine of age its not bad as they go.. Fix the gauge stop worrying and enjoy the Esprit experience.. 1 Quote Link to post Share on other sites
alzmoore 4 Posted August 16, 2019 Author Report Share Posted August 16, 2019 Many thanks Dave. I never seemed to get anxious before I had a Lotus........ Quote Link to post Share on other sites
ekwan 64 Posted August 17, 2019 Report Share Posted August 17, 2019 21 hours ago, alzmoore said: After 5 years my 1989 SE turbo project now has an MoT and is actually on the road...!!! ...However, panic set in when I got the dreaded flickering oil pressure light and low/zero reading on the guage at idle and flickering lights on gear changes once it got warm. I have removed the sensor and fitted a temporary manual gauge and am very relieved to find 60psi at idle when cold which drops to just under 30 when hot. At 3500 I get about 50 psi (hot). Because I suffer from extreme Lotus anxiety, I'm now wondering if that is too high as it seems to be well above the manaul spec? I guess i obviously need a new sender unit. Any recommendations?. many thanks Alan Just what the Dr ordered Quote Link to post Share on other sites
eeyoreish 819 Posted August 17, 2019 Report Share Posted August 17, 2019 FYI the sender (if you need one) is a Lotus specific part at about £80 I think from SJ. Trust me, I tried to find an alternative but couldn't. To do with the specific limits on the tell tale light I think... Quote Not worth starting anything now... Link to post Share on other sites
drdoom 329 Posted August 17, 2019 Report Share Posted August 17, 2019 On 16/08/2019 at 08:27, alzmoore said: Many thanks Dave. I never seemed to get anxious before I had a Lotus........ It's not the Lotus, is it? Quote Link to post Share on other sites
ragingfool35 24 Posted August 17, 2019 Report Share Posted August 17, 2019 after i rebuilt the engine I logged the following oil pressure idle 3500 rpm cold 60 60 20w-50 hot 40 60 10w-40 hot 30 60 10w-40 6k miles Quote chris90SEjust because I don't CARE doesn't mean I don't UNDERDSTAND Link to post Share on other sites
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