Quote:
Originally Posted by Walrad
Hey guys,
I am contemplating chip tuning my 320d, stage 1, it has done approximately 90000 km. I haven't done dpf or egr delete yet, because they haven't given me any problems yet. But I am worried about the timing chain on the n47 engines. I drive the car in normal manners just want it to be a bit more responsive. I haven't done any tuning on cars. Should I be worried when it comes down to the timing chain? What are you guys thoughts overall about stage 1 chip tuning?
Thanks in advance.
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If you're worried about the chain, BMW have a tool for measuring chain wear without stripping the engine. Instructions in the packet.
It's basically a copy of the standard tensioner but with a spring loaded rod inside it that pokes out of the bolt head. 5mm is the spec for a good N47/57 cam chain. If it doesn't poke out, the chain is done.
https://www.amazon.co.uk/Laser-7034-.../dp/B07CTB1GH2