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200tdi running temp


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standard stat for Defender spec 200Tdi is 88 degree, so it should sit around that figure when engine is fully warmed & operating

the oil stat is stamped 74 degree, mine runs about 80 to 85 when fully warmed up while driving at normal road speeds.

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6 minutes ago, western said:

standard stat for Defender spec 200Tdi is 88 degree, so it should sit around that figure when engine is fully warmed & operating

the oil stat is stamped 74 degree, mine runs about 80 to 85 when fully warmed up while driving at normal road speeds.

Thanks chaps. I'm not sure whats afoot with mine (200tdi replacement for a 19j). Water gauges (in and out of rad) shows 75 to 90 and constant (allowing for stat opening and closing), and the original water temp gauge on dash rises appropriately and sits in middle all the time, but oil gauge shows 105 constant rising to 110 under load, and if ambient is warm its up to 115 under load.

I've used an infrared thermometer on the engine when its hot and it shows 85 to 90 so I'm assuming it may be an oil temp reading error. I changed the oil thermostat recently to see if it would rectify this but it still shows the same readings so I'm guessing its not the 'stat.

Gauge is a VDO with (AFAIK) the correct sender. Radiator (with integrated oil cooler) is recently renewed quality item all metal so I'm confident its not that. 

Am I missing something obviosu that would account for apparently higher oil temps??

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Standard Stat in a 19J TD was 82 IIRC. mine defintely was,

oil temp sender sits on front face of oil filter head, mine [200tdi] sits around 80 in normal driving conditions. 

oil stat only allows oil to the cooler when the stat operates, it won't have any affect on the oil temp gauge.

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Using vdo guage and senders front my madman, I get 89-91 degree causing water temperature and I've had it up to about 97 degrees pushing hard up a steep hill, but it dropped very quickly after. I think I've had it up to 105 on a hot day but that doesn't happen much.

Oil temp is around 80 to 110 probably sits about 88 most of the time and is much slower to respond either up or down.

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1 hour ago, Maverik said:

Using vdo guage and senders front my madman, I get 89-91 degree causing water temperature and I've had it up to about 97 degrees pushing hard up a steep hill, but it dropped very quickly after. I think I've had it up to 105 on a hot day but that doesn't happen much.

Oil temp is around 80 to 110 probably sits about 88 most of the time and is much slower to respond either up or down.

Yes I think I need to check this sender is accurate, its been like this since I fitted it, and it seems like its showing too high compared to your readings.

1 hour ago, western said:

Standard Stat in a 19J TD was 82 IIRC. mine defintely was,

oil temp sender sits on front face of oil filter head, mine [200tdi] sits around 80 in normal driving conditions. 

oil stat only allows oil to the cooler when the stat operates, it won't have any affect on the oil temp gauge.

Aye understand the stat operation, I replaced it because I thought it might have been jammed partially shut and not allowing oil through as its supposed to. Curiously, I found a washer inside the oil stat housing which was obviously deliberately inserted where it shouldn't have been, presumably to alter the stat operation (reduce warm up time?). I didn't replace it.

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On ‎29‎/‎08‎/‎2017 at 5:15 PM, Maverik said:

 

Oil temp is around 80 to 110 probably sits about 88 most of the time and is much slower to respond either up or down.

 

 

 

 Hi Maverik can i ask how you have got your oil temperature plumbed in ( if using the madman monitor) ,I also have this monitor(fantastic bit of kit) but not sure where to plumb in the sender and avoid a " colder dead end " to measure from

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1 hour ago, Jocklandjohn said:

Yes I think I need to check this sender is accurate, its been like this since I fitted it, and it seems like its showing too high compared to your readings.

Aye understand the stat operation, I replaced it because I thought it might have been jammed partially shut and not allowing oil through as its supposed to. Curiously, I found a washer inside the oil stat housing which was obviously deliberately inserted where it shouldn't have been, presumably to alter the stat operation (reduce warm up time?). I didn't replace it.

When I replaced the oil stat on my 200tdi there was a big washer around the outside of the stat, so it's not uncommon.

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3 minutes ago, western said:

When I replaced the oil stat on my 200tdi there was a big washer around the outside of the stat, so it's not uncommon.

Hmm!  My local LR specialists had never seen one installed before and had no idea what it was for. Land Rovers  eh!

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15 hours ago, western said:

When I replaced the oil stat on my 200tdi there was a big washer around the outside of the stat, so it's not uncommon.

Mine too.  It's standard, and I think for the very reason you gave.  I think it also helps ensure all of the oil goes through the oil cooler when warm, not just part of it.  I initially used it, but unhappy with the oil pressures and temperatures compared to my 12J (with the same gauges and a SIII MoD FFR oil cooler), I removed the washer and gained about 5psi for no discernible oil temperature change once stabilised.

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On ‎2017‎-‎08‎-‎29 at 7:49 PM, justustwo said:

 

 

 Hi Mavericjcan i ask how you have got your oil temperature plumbed in ( if using the madman monitor) ,I also have this monitor(fantastic bit of kit) but not sure where to plumb in the sender and avoid a " colder dead end " to measure from

I drilled and tapped a 1/8th npt thread into the spare bung hole on the oil filter housing (you can see kinda behind the injector pump), you can also get pre tapped bungs I think but I got impatient and just did it myself.

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That is correct.  the 200TDI (and earlier engines) have a correct location for the oil temperature sender.  It is in the path of the oil going into the oil filter housing.  The 300TDi oil filter housing does not have the oil temperature port.

On my truck with a MadMan gauge, the oil temperature reads a maximum of 7 C higher than coolant temperature when pushed hard for long periods in hot weather.

I've also measured the oil temperature going to the cooler separately and can confirm the oil thermostat is fully open at 74 C.  It starts to open in the mid 60s.  Basically, it is open all of the time, once the engine is warm.

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