Hello
Well I'm back at work for 7 days! So no more testing! But have sourced a rebuild kit! Pistons,rings,small ends etc! I thought while I'm taking barrels off might aswell update to the better mc 18 barrels and heads! So I'm also replacing barrels and rc valves! Have been researching a leak down fest to check the dreaded center seal and outer seals! I have a terrible feeling it will be seals! But I'm in no rush so if I have to i will be rebuilding the bottom end aswell!
Leak down test should verify this!