ok, been through my receipts

the only 1s i can see that stand out to me are as follows

F6163351 washer
F1473743 bolt

i bought 8 of these, im assuming these would be the clutch bolts

F6134901 bolt
F1613374 lockwasher

i bought 6 of these, and they cost a fair bit each for the bolts, so id assume these are the hefty flywheel bolts

i could be way off the mark as the receipts dont give me much indication, but worth an ask, as part numbers always help

im quietly confident that they at least have something to do with the engine though