[Scott.T]

Quote from DazDavies re : Big End Failure

"Most often cause of bearing failure is oil starvation usually caused by the standard OEM Oil pump pressure relief valve sticking. This is because the piston on the oil pump has a 10mm groove in and can become prone to foriegn debris.

One of the best ways to prevent this is to run the modified oil pump from RCMS this has the piston in the pump replaced for a smooth non grooved item.

I had bottom end failure without one an have never had it with one. This is with 4 different scoobies and about 100K miles "

"Det will destroy pistons result in noticeable loss of power long before bearings get damaged. I had an engine failure due to severe det. One piston and bore got wrecked. The bearings were not that old and damned expensive (RCMS WRC items) so I reused them on the rebuild. They have been in the engine since and are still going strong.

If bearings are damaged and pistons are OK the cause of bearing failure will NOT be detonation! "