Jon W Posted December 3, 2005 Share Posted December 3, 2005 (edited) As it says really what range of pressure is needed on an oil pressure guage for a 2.5 Petrol engine? Also what is the difference between an electric and a capillary gauge, The capillary gauges seem cheaper, any reason for this? Also which is easiest to fit? Cheers Jon Edited December 3, 2005 by Jon W Quote Link to comment Share on other sites More sharing options...
western Posted December 3, 2005 Share Posted December 3, 2005 The LR defender oil pressure gauge shows 0 to 100psi & 0 to 7 kpa, this is a electrically operated gauge, if you do a search for gauges you'll find the part number I reckon elect gauges are easiest to fit, with a capillary gauge you have to have a oil pipe into the back of the gauge, these are more accurate, hth Quote Link to comment Share on other sites More sharing options...
landi41 Posted December 3, 2005 Share Posted December 3, 2005 The LR defender oil pressure gauge shows 0 to 100psi & 0 to 7 kpa, this is a electrically operated gauge, if you do a search for gauges you'll find the part number I reckon elect gauges are easiest to fit, with a capillary gauge you have to have a oil pipe into the back of the gauge, these are more accurate, hth Hi Ralph; 0-100 psi ........ pretty optomistic eh? The 4 cylinder guage part # is PRC 3116 (original only around 80.00 GBp from Bearmach) sorry can't find a part # on the transducer (sender) perhaps it is a mechanical guage......... I prefer the mechanical guage as Ralph says "more accurate" and i fitted an "aftermarket" one to my 2.5 petrol, 30 psi idle, 45 psi or so at 3000 rpm.............. Quote Link to comment Share on other sites More sharing options...
Turbocharger Posted December 3, 2005 Share Posted December 3, 2005 ... and I believe the oil pressure switches (for the oil light on the dash) operate around 4-8 psi - so if you see it, it's too late Quote Link to comment Share on other sites More sharing options...
western Posted December 3, 2005 Share Posted December 3, 2005 (edited) oil pressure & temp transmitters parts page as fitted to my 200Tdi Jon, check this thread dials/gauges in the Defender forum oil pressure gauge PRC7319 -- for petrol, n/a diesel, TD & 200Tdi oil temperature gauge PRC7318 -- as above Edited December 3, 2005 by western Quote Link to comment Share on other sites More sharing options...
Mehetabel Posted December 7, 2005 Share Posted December 7, 2005 ooh, ooh, I know this one, as me teach, ask me [having just looked it up for my own problem, which is still not resolved ] The pressure relief valve [at least on the 6, I doubt it is much different for any of the rest of the "family" of engines] is set to lift at 30 -40 mph or 60# and the idiot light is set to come on at 10 -12# if everything is working right. Based on this value I would say that a 100# gauge is about right [guages are usually laid out so that the nominal value is at the 12 o'clock position] and in fact both of the mechanical gauges that I have borrowed for my investigation are this range. BTW NB the fitting [for series trucks] is 5/8 BS COURSE , a hard size to find in the US in 2005 cheers Quote Link to comment Share on other sites More sharing options...
Jon W Posted December 7, 2005 Author Share Posted December 7, 2005 Well i picked up a nice oil temp gauge on ebay for 99p, so chuffed with that , just have to find out which bits it comes with when i get it. Then may need some help with which bits i need. Im keeping my eye on ebay for an oil pressure gauge at a bargin price. Cheers Jon Quote Link to comment Share on other sites More sharing options...
western Posted December 7, 2005 Share Posted December 7, 2005 (edited) Well i picked up a nice oil temp gauge on ebay for 99p, so chuffed with that , just have to find out which bits it comes with when i get it. Then may need some help with which bits i need.Im keeping my eye on ebay for an oil pressure gauge at a bargin price. Cheers Jon good you found one at a great price see my modified parts cat page [link above] for the transmitter & fittings their common to all the 2.5ltr 4cylinder engines [except the oil temp transmitter won't IIRC fit the 300Tdi] Edited December 7, 2005 by western Quote Link to comment Share on other sites More sharing options...
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