Hallelujah!!!

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-Defender110-

Well-Known Member
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Location
limerick, Ireland
Finally my ongoing battle with the slow loss of coolant in my td5 seems to an end!! i replaced the MAF today and took her for a test run expecting a reasonable difference in power, and there was... but im still getting very annoying flat spots in the lower half of the revs, so that coupled with the fact that im getting a reasonable ammount of white smoke on startup got me thinking that my glow plugs are knackered, so i went to pull em out and look when i noticed a tiny drip of water run along the coolant pipe running to the egr cooler, on closer inspection it basically fell off on one end :doh: so ive just removed the bugger of a pipe and blocked the coolant pipes off, (ive a blanking kit on the egr so the coolers redundant) hopefully i wont be loosing any more coolant :)
 
Hopefully You've found your coolant leak but by blocking off the the offending coolant pipes you've also blocked your oil cooler return route which ran through the EGR cooler.

Have a look at the top picture in the diagram attached (red shows pipe from oil cooler and green shows pipe from EGR to header but excuse the art work). You should connect the coolant pipe that ran from the oil cooler to the EGR cooler directly to the header tank to ensure the oil cooler works as designed. I took off the complete EGR cooler assembly when I did mine and altered the pipework accordingly.

Bottom pic shows pipework for early TD5 without EGR cooler.
 

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No worries. It took me a while to figure it all out because when I did my engine change I went from the earlier TD5 spec to the later TD5 spec engine. There are several subtle differences that only become apparent when you look closely.

BTW hang on to the EGR bits and pieces just in case the powers that be get funny and insist on it being there in order to get an MOT in the future.
 
Thanks for that shifty, im learning slowly :D all is back together properly now, i just bought new piping so the coolers still plugged in so to speak, i might reroute it at a later stage but this will do for now :) haha, dont worry shifty, ive held onto every part ive replaced so far, catalytic converter, egr, center silencer, the lot :)
 
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