hurbie Posted February 11 Share Posted February 11 hello all , trying to find some info if i need to change the gauge on my Eurover project , the car was born as a 2.5NA and now has a 200TDI engine (with original temp sender), does this work with the older 2.5NA gauge (PRC7311) or do i need to change to a different gauge , and so wich one ? AMR2070 this one is from chassisnumber JA916596 or do i need AMR2631 this is from chassisnumber KA928140 (or is this 300TDI) Quote Link to comment Share on other sites More sharing options...
monkie Posted February 11 Share Posted February 11 I think there were different senders used on the 200tdi engines, depending whether it was Defender or Discovery spec. I think the Discovery spec 200tdi engines will make your gauge read incorrectly. I have a stack gauge and corresponding sender fitted to my 200Tdi, it cost a few £ but I highly recommend it. Quote Link to comment Share on other sites More sharing options...
hurbie Posted February 11 Author Share Posted February 11 it's a defender spec engine , i like to keep it as stock as possible , so no fancy gauges at the moment for me ... Quote Link to comment Share on other sites More sharing options...
Snagger Posted February 11 Share Posted February 11 32 minutes ago, monkie said: I think there were different senders used on the 200tdi engines, depending whether it was Defender or Discovery spec. I think the Discovery spec 200tdi engines will make your gauge read incorrectly. I have a stack gauge and corresponding sender fitted to my 200Tdi, it cost a few £ but I highly recommend it. That’s right. It was mentioned in Glencoyne recent LRM article. One version of the engine has a sender with green plastic, the other with black plastic, denoting compatibility with either Defender or Discovery gauges, but he has recently been having trouble finding reliable senders. Might be worth contacting him to see whether he has determined and brand is reliable. Quote Link to comment Share on other sites More sharing options...
monkie Posted February 11 Share Posted February 11 This is an informative thread to read on the topic... https://forums.lr4x4.com/topic/78084-19j-to-200-tdi-conversion-coolant-temp-sensor-question/ Quote Link to comment Share on other sites More sharing options...
miketomcat Posted February 12 Share Posted February 12 Our 110 was a 2.25 diesel converted to disco 200tdi. The guage as far as I can tell is original but we did swap the sender to a defender version to get it to read correctly. The one thing I will say is I wouldn't bank on them being accurate but once you have established it's not doing anything silly it settle in a set position for normal running ours is just over halfway on the guage which then gives you a baseline. Mike Quote Link to comment Share on other sites More sharing options...
western Posted February 12 Share Posted February 12 Defender 200tdi coolant temperature sender is PRC8593 5/8UNF thread if I remember correctly https://britcar.com/search.php?query=PRC8593&xBrand=&part_type=&xSupplierID=&product-sort=&xPerPage=10 Quote Link to comment Share on other sites More sharing options...
hurbie Posted February 12 Author Share Posted February 12 ok , so it seems the defender spec engine temperature sender will work with the "old" 2.5 (or earlier) gauge , i'll leave it for the moment and have a look when the wiring is in place . Quote Link to comment Share on other sites More sharing options...
monkie Posted February 12 Share Posted February 12 I wouldn't worry too much about it at this stage. It will be very obvious if you have a compatibly issue as the gauge will either do nothing or jump right up into the red. Easy enough to sort out with a later gauge from a Tdi Defender if necessary Quote Link to comment Share on other sites More sharing options...
western Posted February 12 Share Posted February 12 Or use a VDO temp gauge with its matching sender Quote Link to comment Share on other sites More sharing options...
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