edge Posted August 13, 2010 Share Posted August 13, 2010 I have recently got my third transit connect. My first i got with 30k miles and had been used by a young lad who thrashed it from new. My second and now my third have all been thrashed from new by me. My old van was given to another college who said it felt like it had a few extra thousand bhp compared to his old van which had been used by an old chap previously. I was speaking to a customer the other day who used to work with military tanks and said the new ones had to go around screaming for a good few days as this meant they would run better. So out of all the vans in the fleet, the ones that have been thrashed from 0 miles have turned out to be the better ones and the others just seem gutless and flat. So i done some searching and found a mixture of answers but most of them agreed with "run it hard" theory. There was also mention of audi running the R8 engines on the dyno at full power @ 8000 rpm for quite a while before being put into the cars. What the tinterweb told me its something to do with the honing of the bores being rough so it can bed the rings for a better seal. So the new van has done 500 very hard miles and goes quite well. Oh and a link to said topic http://www.mototuneusa.com/break_in_secrets.htm Discuss Quote Link to comment Share on other sites More sharing options...
Josh Posted August 13, 2010 Share Posted August 13, 2010 That's quite interesting. I always heard that you're supposed to run it in for 3000 miles preferably. I'm not planning on buying a brand new car but I'm not sure, I think I'd take it easy were it my car. If it was a company car I'd try it out. Quote Link to comment Share on other sites More sharing options...
edge Posted August 13, 2010 Author Share Posted August 13, 2010 That's quite interesting. I always heard that you're supposed to run it in for 3000 miles preferably. I'm not planning on buying a brand new car but I'm not sure, I think I'd take it easy were it my car. If it was a company car I'd try it out. After all the reading i would run it hard if it was my own vehicle. Also i was speaking to a landrover tech today and he said all the diesels owned by the oap's struggle to get through mots on emmisions and smoke tests but the ones that have been thrashed a bit get through ok. Quote Link to comment Share on other sites More sharing options...
Josh Posted August 13, 2010 Share Posted August 13, 2010 After all the reading i would run it hard if it was my own vehicle. Also i was speaking to a landrover tech today and he said all the diesels owned by the oap's struggle to get through mots on emmisions and smoke tests but the ones that have been thrashed a bit get through ok. Well mine should be ok then Quote Link to comment Share on other sites More sharing options...
edge Posted August 13, 2010 Author Share Posted August 13, 2010 I thought it was just with diesels but it seems all 4 stroke fuel types love it. And a bit quted from the link above The Problem With "Easy Break In" ... The honed crosshatch pattern in the cylinder bore acts like a file to allow the rings to wear. The rings quickly wear down the "peaks" of this roughness, regardless of how hard the engine is run. Quote Link to comment Share on other sites More sharing options...
geordie82 Posted August 13, 2010 Share Posted August 13, 2010 bought my combo last year off the shelf ran it easy for first few thousand miles and its sluggish as hell. where my dads astra van bought a few years earlier driven quite hard from the start runs alot better. both vans got same 1.7 cdti engine granted combo is a bit heavier having 5 seats but diffrence is massive goto agree with the harder driving theory from my experience Quote Link to comment Share on other sites More sharing options...
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