Was driving along third gear on about half throttle just going up the gears lightly and i felt like it was holding back, same as when the timing chain was stretched on the N16, so I dropped a gear to raise the revs and put it into boost and i put the foot down and I could hear a knocking. I lifted off and again, kinda faint knock, then when I went for light throttle it was smashing it's face off. Pulled over and could hear it faintly knocking away but idling perfect, put it to 2k on light constant throttle and again, smashing it's face off.
It took a specialist all of 2 seconds to diagnose and wave at me furiously to turn it off. I'm in no doubt whatsoever. It's big end failure.
Guy I've had look at it reckons the oil pump has failed leading to the engine ceasing momentarily then starving engine of oil. He'd be extremely surprised to see the oil pump in tact when removed. He's amazed it happened so fast, wasn't knocking before, no clues just bam. Engine was serviced less than 500miles ago with Fuchs Titan 5-40 fully synthetic and has not been driven hard (way up at the limiter etc) since I bought it.
Would I purchase an engine for £5/600 and spend another £200 or so getting it fitted when the very same thing might happen? Service history isn't worth a fuck when I've just had a 82k FSH engine fall out with it's big ends. Especially when you buy one that was only converted to manual 5k ago so it's not had any time to be thrashed off the limiter etc.
It'll be getting taken out, taken apart and whatever it needs, it'll get. Lookin at big end bearings themselves, oil pump, head gasket (gonna split it to make sure it's all ok) & crank skim...IF I'm lucky and it's not chewed the bores or completely wrecked the crank.
It won't be cheap, but it's a guarantee it'll be fixed and a peace of mind for me that I know that if anything goes wrong, it's my fault and my fault only. No surprises.