Originally Posted by
Luki_qc
Hi, first post here. I've been lurking on this thread. I have a new 2015 Micra S. (from Montreal)
So they figure that installing correct sized rod bearings will fix the issue permanently? If they figure this out, I will be much relieved and will consider getting mine done at that point. I figure it's useless making a big fuss now if the current "fix" is just to install new bad parts.
Keep us updated!
replaceing only rod bearings is not the best fix because there is damage on the crank and also metal fatigue on cylinder 2 conrod because of the knock, these engines throw the rod because of metal fatigue.
every crankshaft on this engines comes with a code were each rod bearing goes, that code gives the rod bearing size to use.
they told me that after fixing the suggested (by nissan procedure) rod bearing size the clearence was wrong in 2 main bearings.
so after knowing exactly how bad the clearence was they ordered "correct" size rod bearing to have an aceptable clearence value.
i was told that by this codes is how they assembly the engines in the factory, so, is very clear why the engines are knocking.
they promissed that the engine will be well built, with all good clearenced and knock free.
so if you want to keep the car, i suggest you go to the dealer and ask them how they think this issue has to be fixed, i really trust the techs that are working on my engine and i agree with them this is a good solution.
also asked them what happen if even with new rod bearing size clearences are wrong, they told me they will request another new crank and 4 new conrods and try again, as i said before, i really trust these guys, they are trying to do things the right way, saddly they have to deal with low quality parts and/or incorrect codes on parts.
Luki_qc, do you have video of your car knock???
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View my fuel log 2014 March manual: 6.9 L/100 km ... 41.1 mpg (Imp) ... 14.6 km/L ... 34.2 mpg (US) ...