DrT Posted May 9, 2010 Share Posted May 9, 2010 Hi, On our very early 300Tdi its suddenly started to spit diesel out of a small round hole in the body of the lift pump! The hole is located on the same side as the manual priming handle is located and on the widest part of the pump just below the lip between the top and bottom parts. It looks like it should have a grub screw in it but its at such an akward point to get at I can't be sure if it really is threaded. Has the hole just miraculously appeared or should there be something in it thats gone walkabout? I've taken a look at the almost identical pump on the 200Tdi and there is nothing there in the same location. Any ideas or clues would be most appreciated! Quote Link to comment Share on other sites More sharing options...
DrT Posted May 9, 2010 Author Share Posted May 9, 2010 Further research has revealed that this hole is an air equalisation vent so it looks like the pump diaphragm has failed. Ordered a new pump so that should fix it. Quote Link to comment Share on other sites More sharing options...
rocky Posted May 9, 2010 Share Posted May 9, 2010 Hi, mine went the same way. Regards, rocky Quote Link to comment Share on other sites More sharing options...
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