Aar0sc wrote:....Explain s'il vous plait?
0K, They usually lunch their blocks as a result of thrust washer wear by around 30k if driven hard, and the pump tends to struggle to keep up with the area of the ends, especially when people fit rocker cover oil feed kits that further reduce the volume of oil heading for the bearings.
I know of a couple that made it into their 70s of thousands, mostly this is down to their drivers never sitting with their foot on the clutch or the engines in question being from automatic versions of the TC and Dolomite; no clutch, negligible thrust loading.
Herald 13/60, with its smaller bearings, spins like a thing possessed and rarely fails in that way.
1300 large journal engines, from Toledos and other RWD cars of that shape, last better as their stroke isn't so long.
So, a 1500 with the large bearings by default since all long 4 cylinder OHV cranks had them, is rarely found with its original bottom end at that kind of mileage.
Either it's been replaced or someone had the foresight to change the washers and shells at every 30k or so - a service recommendation by BL, who knew about this but tended not to shout it from the rooftops - which would prevent the crankshaft grinding its way through the block.
Check yours for endfloat now, if there's more than the few thou' specified for new washers in a new block, get the caps off, take the shaft out, change those washers and shells and never leave your foot on the clutch for longer than it takes to engage it as you set off.
Even a 1500 will last well if the shells are changed every 30k or so and those washers at similar intervals.
