V70 very inter power loss cured !!
This fault has been bugging me for a couple of years, it's been very intermittant & gives no fault codes : a sudden power loss in mostly second & third gear with no excess smoke from the exhaust. I think most of us are well aware of the weird & wonderful intermittant power losses caused by the fuel filter & the head scratching fault codes that arise from the fuel starvation; this next fault involves air starvation, hopefully this will help some people out:
The trusty D5 http://i271.photobucket.com/albums/j...0/DSCN1303.jpg Cover removed http://i271.photobucket.com/albums/j...0/DSCN1304.jpg The inlet pipe to the turbo is not easy to reach but I'm determined to leave the top engine mount & crossbar in place http://i271.photobucket.com/albums/j...0/DSCN1305.jpg The turbo creates quite a high localised vacuum in the inlet pipework, the rubber inlet pipe has denatured & gone very soft. Under heavy boost the vacuum is sufficient to squash the pipe & stop the airflow. My paws are quite big, it's a bit of a struggle. I end up laying on the engine but that's cool 'cos I love this car http://i271.photobucket.com/albums/j...0/DSCN1307.jpg Luckily the jubilee clamps are moveable, nearly there now http://i271.photobucket.com/albums/j...0/DSCN1309.jpg The vacuum has crushed the pipe so hard it's split. http://i271.photobucket.com/albums/j...0/DSCN1310.jpg Notice the pipe is so soft I can easily squash it into a ball http://i271.photobucket.com/albums/j...0/DSCN1311.jpg The new pipe is very hard & I struggled to get the crankcase ventilation spigot in for 15 minutes before I cheated & gave the plastic body a chamfer with the Dremmel http://i271.photobucket.com/albums/j...0/DSCN1315.jpg http://i271.photobucket.com/albums/j...0/DSCN1317.jpg Job done. It's been a bit of a tussle but I'm well pleased to have finally cured this fault, the car's never driven better. Also I've just got the all clear from a year long cancer scare. It's been a good day :thumbs_up: pipe part No 30636854 |
Well done and good news on both counts!
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How many miles on the car HH?
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Mines also a 53 plate and has 66k so I think I`ll check mine as its easy to get to :thumbs_up: Thanks for taking the time and posting the pics for us :thumbs_up: :thumbs_up:
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Thanks HH,Only seen this post today,Its posts like this and folk like you who make VOC forumn worthwhile :)
Ps : out of curiousity how much was the part? |
The fact that the vacuum collapsed the weakened from oil pipe also shows that the engine would benefit from a larger air filter and pipework to the turbo ... In an ideal world there would be no vacuum at the turbo charger inlet ..
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Nice one! I'll be checking mine ASAP. Good right up and well done on both counts:thumbs_up:.
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Cant believe I missed your original post at the end of March as I thought I was diligent in reading diesel posts , just makes me think I have probably missed some other useful posts as well , great photos and well done beating the cancer . I had the turbo off my D5 looking for a reason for intermittant power loss over past 30k miles but no repeat at all since end of Jan but nothing done to repair except unplugging and reconnecting various sensors so I am inclined to think the original cause is still there , I did check the turbo pipes but I recall the inlet pipe being soft as you describe and thought that was normal ! I will get this changed asap and have a closer look for splits .
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