Jon White Posted September 29, 2007 Share Posted September 29, 2007 OK -200Tdi disco engine. How much oil pressure should you have? Hot at idle I've got about 10psi, going up to just over 30psi at higher rpm. Doesnt seem enough to me! I put all new shells in it when i put the engine in a few weeks ago (all the journals looked ok and were not scored etc). I've also changed the O rings under the vacuum pump that are renowned for low oil pressure but its made no difference. Is it enough, or do I pull the sump and have a look at the oil pump? Cheers Jon Quote Link to comment Share on other sites More sharing options...
kkk2 Posted September 29, 2007 Share Posted September 29, 2007 Hi Jon, I'd change the oil pump as I reckon your pressures are a bit low Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted September 29, 2007 Share Posted September 29, 2007 Why not just Pop that nice V8 you have on the garage floor with the Megajolt on it in it Nige Quote Link to comment Share on other sites More sharing options...
Jon White Posted October 1, 2007 Author Share Posted October 1, 2007 Why not just Pop that nice V8 you have on the garage floor with the Megajolt on it in it Nige Er.......... cos Mr Chancellor has just put fuel up by another 2p a litre.......... Quote Link to comment Share on other sites More sharing options...
Jon White Posted October 1, 2007 Author Share Posted October 1, 2007 Hi Jon, I'd change the oil pump as I reckon your pressures are a bit low Thanks Kev, Thats kinda of what i was thinking too! Cheers Jon Quote Link to comment Share on other sites More sharing options...
Pete Attryde Posted October 1, 2007 Share Posted October 1, 2007 My 300 is doing something similar, however I fitted a genuine oil filter instead of the B******h one that i used last oil change and my hot tickover pressure has now risen from 10 Psi to 20 Psi. Pete. Quote Link to comment Share on other sites More sharing options...
honitonhobbit Posted October 1, 2007 Share Posted October 1, 2007 Just over 10psi at tickover is okay then allow a minimum of 10psi for every 1,000 rpm over tickover. These engines are sensitive to oil quality and filter quality OE filters are the preference or decent non OE. Oil pumps rarely cause issues on a well maintained lump but the forward movement of the cam in it's journals does. The rear bearing shell has a habbit of 'creeping' on some engines, thus exposing the oil way, thus causing a pressure drop. This is a pain in the bottom as the lump must be line bored and new bearings fitted. This only usually happens to engines that have been pootled in a disco then ramped in a lower geared defender or pootled then thrashed for long periods of time. Removing all the seepage leaks can up pressure by a couple of pounds. Most oil pressure guages are fairly lapse in accurate readings, if you pressure warning light works and is not warning you of impending loss of engine internals, don't worry... Quote Link to comment Share on other sites More sharing options...
Jon White Posted October 1, 2007 Author Share Posted October 1, 2007 Hmmmmm mine sits at about 10 psi at idel when hot, but never goes much above about 30psi at any rpm. Bit too low IMHO. Think I'll have a look at the oil pump first as its easiest to get to. I have no oil warning light - only a gauge. Jon Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted October 1, 2007 Share Posted October 1, 2007 The LR specification for the 200Tdi engine details the oil pressure as '25 - 55 psi at normal operating speeds and normal operating temperature'. In view of that statement then your oil pressure would seem to be a bit on the low side............. I guess an average engine would have something like 40psi at noraml running speeds...................... Maybe time to change the pump ................. Ian Quote Link to comment Share on other sites More sharing options...
Jon White Posted October 1, 2007 Author Share Posted October 1, 2007 Yeah - funnily enough I'd just looked it up and that was the conclusion I'd come too aswell!!! Lets hope its the pump as I really dont fancy stripping the whole thing to sort slipped cam bearings out! Cheers Jon Quote Link to comment Share on other sites More sharing options...
western Posted October 1, 2007 Share Posted October 1, 2007 Jon, added another reply to your Defender forum thread ref oil pressure Quote Link to comment Share on other sites More sharing options...
Anglo-Frenchman Posted October 3, 2007 Share Posted October 3, 2007 How easy is it to change an oil pump on a 200tdi and how do you tell if its worn? Quote Link to comment Share on other sites More sharing options...
Jon White Posted October 3, 2007 Author Share Posted October 3, 2007 Dropthe sump, undo 2 bolts andit all drops out. How to check it isallgivenin the workshop manual. Basically you look for scoring,but there are also clearances to check with feeler gauges. Havnt had a chance to look at mine yet cos I;ve hurt my arm so havnt touched the truck since lastweek. Poxy space bar on my keyboard isplaying up too andonly works when it feelslike it.........sigh....... Jon Quote Link to comment Share on other sites More sharing options...
Anglo-Frenchman Posted October 3, 2007 Share Posted October 3, 2007 ThankJon. Just trying tomake you feelat home! Ged Quote Link to comment Share on other sites More sharing options...
Jon White Posted October 3, 2007 Author Share Posted October 3, 2007 Very good! Quote Link to comment Share on other sites More sharing options...
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