Hi
It's not sealant. It's actually thin rubber sheet. I've just opened out the biggest pice and it's 2" across the bottom and 1.5" up the sides (triangular)
I've got two other smaller pieces. This engine has had a rebiuld about 40k ago. I'm wondering if it's been left in then.
New filter fitted last night, new oil in today after liquid gasked has cured.
Plan to drop sump after ?? miles to check sump.
Glad we found this though, wasn't looking forward to taking the oil pump off.
Geoff