Thread: Heat exchanger td5

Hi I had a small leak on the heat exchange , but a leak is a leak . So It had to be fixed . The stainless steel unit came off nice and easy . The heating hose weren't to hard , plus the diesel lines only clip on . They were nice and easy to undo as well . Once I got It all off , I tipped the diesel onto a tub , I was surprised how much was in there . Unclipped the clamps that hold the end caps on , pulled then off . When I looked inside , what a lovely made piece of kit . Just like a small boiler . The O rings had gone hard , put the new ones on , with the help of a bit of silicon grease . So far so good . All back bolted together hoses back on , diesel lines on . Top up fluid , Start It ran strait away , lovely , then stopped ? I new strait away what I had done wrong . All that diesel I said came out of the exchanger , was now Air . It took quite a lot of working on priming the pump to get It going , plus I changed the battery , as mine was starting to fade . What I think would have helped , would to have topped the exchanger back up with diesel before I put It back in , I think that would have saved a lot of priming , but I'm not sure . I certainly wouldn't have done any hard !!.. I hope this helps anyone that wont's to have a go at what is a job that is not to difficult . Jim

Originally Posted by Tombie

You live and learn

The orings can be changed in situ!

Did you use the priming procedure or keep cranking?

Hi Tombie ,I used the priming procedure , The taking It off was quite easy , I did wont to have a good look at It , and glad I did . I think I would have struggled with the snap ring in situ . I can see that to leave It on would eliminate any air problems . Jim