28-05-2019, 02:21 PM
My engine was rebuilt about 10,000 miles ago with new crank and bearings and has been apart a couple of times since to sort various things. I’ve just noticed a bit of rumbling, I assume from the rear main bearing. More noticeable in a basement car park with the bonnet up, not so audible outside.
How much rumble is acceptable? Should they be completely silent or is a bit of noise acceptable with roller mains?
I fitted a Ricardo head a couple of years ago and driven it fairly hard, (but not that far) since, including some hillclimbs and motorway thrashing. It’s a fairly harsh with the raised C/R and I imagine this isn’t great for bearing life.
How much rumble is acceptable? Should they be completely silent or is a bit of noise acceptable with roller mains?
I fitted a Ricardo head a couple of years ago and driven it fairly hard, (but not that far) since, including some hillclimbs and motorway thrashing. It’s a fairly harsh with the raised C/R and I imagine this isn’t great for bearing life.