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E46 M3 S54 Engine

Estoril X5 D Sport

By Estoril X5 D Sport,
in BMW M Power Forum

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Estoril X5 D Sport Collaborator

Estoril X5 D Sport

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Have a problem with an M3 S54 engine, car put on the management light with a slight misfire on cylinder 6 after doing all the easy usual stuff did a compression test cylinders 1-4 all fine but cylinder 5 40psi and cylinder 6 nothing whatsoever, carried out the test again with 5 and 6 plugs removed and you could hear it blowing through the cylinders, I am assuming that the piece of gasket is stuck in the valve of number 6.

I would like to hear from anyone that that has done the job before regarding dos and donts pitfalls etc and also am struggling to find the timing tool required for the S54 lump, it can be sourced in America at around £400 but I guess I will never need it again so any tool hire companys that I can rent it from would be useful info also.

Regards

Stephen

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