20-06-2018, 07:50 PM
(This post was last modified: 20-06-2018, 07:57 PM by Steve Jones.)
I gave up using oil baffles maybe 25 years ago or so. Since then I've used 4 ring traditional pistons, 3 ring traditional sports pistons, modern low expansion pistons, modern low expansion 3 ring sports pistons, good pistons and, in one case, some very poor pistons and none of the engines has ever burned oil. The odd one has leaked a small amount but that too can be sorted with careful assembly or re-assembly.
The secret to not burning oil is to have the block re-bored to the exact specification of the piston manufacturer (they know better than your machine man whatever he might say) and, most importantly, very careful running in. Starting a newly built engine and standing back watching it tick over happily thinking how well you've done is the perfect recipe for glazing the bores after which it will always burn oil. I don't understand the concept of '....it's newly built so it's still burning a bit of oil'. They don't, not if done and run in properly.
Steve
The secret to not burning oil is to have the block re-bored to the exact specification of the piston manufacturer (they know better than your machine man whatever he might say) and, most importantly, very careful running in. Starting a newly built engine and standing back watching it tick over happily thinking how well you've done is the perfect recipe for glazing the bores after which it will always burn oil. I don't understand the concept of '....it's newly built so it's still burning a bit of oil'. They don't, not if done and run in properly.
Steve