New member but long time sufferer. 18 years after I last had a Mini I got bored in lockdown and after months of searching found myself a half decent 97 mpi.
She runs fine, doesn't appear down on power or anything like that but I believe I am noticing some spluttering from the back end once warmed up. Having trawled the forums with varying suggesting I can advise that she has no erratic revs, she seems to sit pretty nicely with no ups and downs, again no holding of revs when revved. Manifold is seated correctly, tight on the gasket, cannot find any leaks. Tappets have been checked/adjusted for good measure. Recent woks includes; service, oil, filter, new plugs along with leads. Leaky gear selector seal replaced. Oil temp sender replaced. New alternator. New backbox. She is mechanically standard under the bonnet apart from a few shiny bits.
I'm new to the mpi and if I'm totally honest a bit rusty with my mini knowledge especially the mpi but given that she appears to be running completely fine I now find myself wondering:
A - Is it just my ears, I guess not?
B - Do I have a slight misfire or just a bit of a rough idle?
Have taken a video to show what I mean. Video shows start up from cold, as expected she runs the higher rpm for the first minute or so to warm up but...
At around the 2:40 mark you can hear what I mean.
Would appreciate someone with better ears than me having a listen in and your views and if I'm going mad.
AP