poured all the UV dye in the oil, went for a drive to work it through the system, drained the gearbox
not much debris since last trackday at blyton
gearbox off, stained with oil
clutch & flywheel off
tried to locate the oil leak with the lamp but was hard to tell cos the faint dye is splashed all over, probably from the previous UV attempts.
think the new dye hasn't had time to leak out properly cos if I drained the oil it appears much brighter under than lamp than the faint oil smear round the flywheel, meh.
but from the faint stains, the rear crank seal area appears clear so it ain't the seal. the sump gasket appears intact with no strong signs of leaking.
the one thing I'm sure could leak is this dodgy main oil gallery end plug, maybe not tight enough?
I'm gonna order yet another copper seal from the dealers and then really tighten this plug till I round the allen head off to be sure
really need to replace this damn front chassis cos the crossmember is now splitting
yet another problem with the soft Alu gearbox rear bolt hole cracked off.
looks like it's been cracked since last fitting and no point trying to waste money getting it tig welded on.
instead I'm gonna modify the rear bracket to bolt onto the other un-used bolt holes nearby
here's the current heavy concave flywheel
can see the flywheel side of the clutch plate is only touching approx 1/2 of the face
the PP side of the plate looks good
the 200mm plate fits over the JUN flywheel like this
the worn outer section of the clutch plate will miss these holes in the flywheel for the first few k's
lining the PP over the flywheel
just enough room to machine the bolt holes at the three corner sections
off to the machinist tomorrow, don't care how £££ or how long it'll take, has to be done.