The first post about Jeff’s E34 left us with a mildly improved, but still rough, engine and idle. The door pull cable was still in shambles and both windows on the driver’s side didn’t work. Thankfully, we have made some progress.
In driving the car around town, I noticed the idle getting progressively lumpier. Acceleration was taking a similar hit – the car felt like VTEC was kicking in and was surging badly. Yes, the M50 motor in the car does have Vanos (BMW’s term for variable valve timing) but the variances should not be noticeable to the driver. This was …