Delberts Wallet Posted March 11, 2001 Share Posted March 11, 2001 Just a quickie. What should the oil pressure be at a) tick over and b) high revs. Also on the same subject , I've never had a car with an oil pressure gauge so what sort of things does can it tell you (apart from the pressure)? Ooo....I've made it to Angel cool.gif Yahoo,I've got a car to beat my brothers Scoobydo teeth.gif Edited by - Gareth Harrold on 11 Mar 2001 22:13:26 Link to comment Share on other sites More sharing options...
jonhill Posted March 11, 2001 Share Posted March 11, 2001 With a stinking hot engine the idle pressure used to drop to a smidge over 2 bar on my 1.8SS. I had a 35 psi (2.25 bar) oil pressure warning light which would come on in the padock at track days, after each session (despite a gentle cool down lap). This would go out as the oil cooled a little. With any amount of revs. it was around 4 bar. Link to comment Share on other sites More sharing options...
Delberts Wallet Posted March 11, 2001 Author Share Posted March 11, 2001 When ticking over at normal temperature (non stinking hot) the pressure sits at just above 1 bar and then rises to 4 and stays there. I trust this is normal. Wahoo...The nights are drawing out and the clocks change in a couple of weeks cool.gif Link to comment Share on other sites More sharing options...
Tim Seipel Posted March 12, 2001 Share Posted March 12, 2001 Oil pressure is fine. Absolute min values are 1 bar at slow idle and 3 bar at max pressure running conditions (high speed) - all hot. Link to comment Share on other sites More sharing options...
StewartG Posted March 12, 2001 Share Posted March 12, 2001 Not sure what engine you've got but 1 and 3 bar sounds too low to me. Link to comment Share on other sites More sharing options...
R500 CYA Posted March 12, 2001 Share Posted March 12, 2001 My 1.6k SS idles hot at 2 bar, and peaks at 4 hot or cold. I understand this is pretty normal. On really hard track days it will also show a peak temperature of 115 degrees, I've been assured this is also quite acceptable. My only recommendation is that you buy an Apollo tank if you intend to use the car on track days. Nick Link to comment Share on other sites More sharing options...
CHRIS CLARK Posted March 12, 2001 Share Posted March 12, 2001 1.4 SS. 41,000 miles. Start up-5 bar; warm idle-2 bar; warm 5000rpm-4 bar Link to comment Share on other sites More sharing options...
Tim Seipel Posted March 12, 2001 Share Posted March 12, 2001 As I said the figures I quoted are for a knackered engine. Hence absolute minimum. Link to comment Share on other sites More sharing options...
Mick Day Posted March 12, 2001 Share Posted March 12, 2001 This all presupposes that your sensors & gauges are sensing/reading correctly. My previous 1.4 & new(ish) 1.6 read similar oil pressures: 4 bar idle when cold sinking to 2 bar when hot; 5000 rpm sinks to 3.5 (ish) bar when hot. 115 deg C water temp seems a little high to me but maybe on a hot day with a lot of right foot? Pinky: is this figure paddock talk or from an engine guru? Mick Link to comment Share on other sites More sharing options...
Roger King Posted March 12, 2001 Share Posted March 12, 2001 Further to Tim Seipel's information - if you double the running clearance at a bearing you will quadruple the oil loss through it. It is often possible to double running clearances by going from minimum tolerance to maximum tolerance. In other words, both extremes can be acceptable. At tickover, your average oil pump doesn't have much in hand to maintain pressure, so you can see the effect that quadrupling oil losses might have in reducing pressure. This is the main reason that engines showing similar pressure at higher revs (where the pump generally has a bit in hand), can have such different tickover pressures. Link to comment Share on other sites More sharing options...
R500 CYA Posted March 13, 2001 Share Posted March 13, 2001 Mick, 115 degree temp referred too was oil not water! Water would indeed be way OTT I'd imagine. I did have a problem with over heating on track days, but the big ali rad soon fixed that! I was worried about the oil temp, so I posted a question on this site ages ago, and called Arrowstar. All agreed this was not a problem for a high quality synthetic oil. Thankfully. Nick Link to comment Share on other sites More sharing options...
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