06-25-2013, 01:02 PM | #1 |
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New engine loosening up, releasing more bhp and better consumption, a myth?
I keep reading stories and long term car magazine tests citing an increase in bhp and the engine yielding better consumption after 10000 miles or so.
Wondering whether his will be the case for my brand new 143bhp 318d or to chip it now :-), risking to f*ck up the brilliant factory settings. Hm,? Gran Turismo, yes, it does look WAY sleeker in real life. |
06-25-2013, 02:16 PM | #3 |
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I remember as a kid my dad would from time to time pull the engine from his old '49 Caddy and replace it with a new short block: the old one could be spun over by hand while the new one required a jack handle wedged between the crankshaft bolts to turn it over and took a lot of effort-same thing when we later were building VW engines (we would coat all the bearings and cylinders with a special assembly grease, then turn the engines over several times to work it in so that the first start would be lubricated before the oil was pushed to all the right areas). Most of this friction is between the rings and the cylinders (which still had the machining marks in the bores), as the rings seat the friction goes away. Other areas of the engine that have geared surfaces, metal seals, etc. also need to seat.
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