Hi All. Hopefully this isn't a 'groan not another timing question'.
Our T4 had its last cambelt change in 2007 and, to avoid problems because it's been 13 years since, we have just paid an official VW garage to change the distribution kit, water-pump etc. Before it went I checked the timing using VCDS and the value hovered around 49-50, so not too bad, but I was concerned about the belt age and thought we were on borrowed time.
Since picking it up from the garage the van starts first time and runs OK, though seems a bit noisier, but doesn't have the pull it had before (though I could be imagining this). Anyway I put it on VCDS and once it was up to temperature the value of 02 in Measuring Block 00 now reads around 104. If I go into Basic Settings the values stay the same. Obviously these are way too high to show on the Tdi-Timing graph.
So my question is why does the engine run at all? I know I need to sort out this timing, but I'm surprised there aren't any problems that are so obvious that your average punter would notice.
I've attached some pics to show VCDS (measuring blocks so it also show group 04), and the tensioner/idler-pulley on the pump side. The tensioner looks fine but the idler is way out. Also we queried the condition of the injection pump belt as it doesn't look like a new belt to me, but we were fobbed off, despite only doing 30 miles since the service.
Any comments would be appreciated, but I'm thinking I need to sort the timing out myself (which I was expecting to do anyway in 4 years time!). I'm hoping there has been no compromise with the cambelt timing setup, but I will have to check that anyway.
Thanks
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Our T4 had its last cambelt change in 2007 and, to avoid problems because it's been 13 years since, we have just paid an official VW garage to change the distribution kit, water-pump etc. Before it went I checked the timing using VCDS and the value hovered around 49-50, so not too bad, but I was concerned about the belt age and thought we were on borrowed time.
Since picking it up from the garage the van starts first time and runs OK, though seems a bit noisier, but doesn't have the pull it had before (though I could be imagining this). Anyway I put it on VCDS and once it was up to temperature the value of 02 in Measuring Block 00 now reads around 104. If I go into Basic Settings the values stay the same. Obviously these are way too high to show on the Tdi-Timing graph.
So my question is why does the engine run at all? I know I need to sort out this timing, but I'm surprised there aren't any problems that are so obvious that your average punter would notice.
I've attached some pics to show VCDS (measuring blocks so it also show group 04), and the tensioner/idler-pulley on the pump side. The tensioner looks fine but the idler is way out. Also we queried the condition of the injection pump belt as it doesn't look like a new belt to me, but we were fobbed off, despite only doing 30 miles since the service.
Any comments would be appreciated, but I'm thinking I need to sort the timing out myself (which I was expecting to do anyway in 4 years time!). I'm hoping there has been no compromise with the cambelt timing setup, but I will have to check that anyway.
Thanks
