Fresh Rebuild - Black Grit in oil

[declan]

@liquid-snake how thoroughly did you clean the inside of the cases

[oldman]

definitely 4T oil?
Do you mean 2 stroke oil?

[liquid-snake]

@declan I'd like to think pretty good, but you've cast doubt in mind! I think and hope you're onto something there. Fingers crossed with a few flushes we'll be clear

@oldman 750mls of 4T 10/30 for transmission. I picked up castrol for 2T also which is the usual crimson red but I was surprised to see this 10/300 stuff as pinkish-red too. First time I've seen anything besides the usual golden brown (texture like sun...) engine oil

[declan]

@liquid-snake just saying because ive had simmilar things come out of the inside of engines

[Calum]

What sort of castrol? It could be messing with the clutch plates breaking them down. Could be clutch you are seeing.

[SpookDog]

What sealant did you use on the cases?
Also how well were they cleaned, the gears, clutch, bearings, ect, ect...
Could of been some old crud washed out by the new oil...

[SpookDog]

Isn’t 4T 4stroke ‘racing’ oil? Just cause it sez 10w/30 doesn’t mean that it’s gear oil. Engine oil is different.
Gear oil used to be EP90 in my day, it’s so fekin confusing now...

[Calum]

@SpookDog I have only ever ran 4T engine oil in my DTR.

[declan]

@Calum same I've always had 4 strokes so I just have one oil for all

[Calum]

I should clarify, 4T oil in the transmission fluid.

Gear oil in the Aprilia though