V65 - Alarming Hole Inside Lower Crankcase/sump

Hi, I’m doing my first service on my 1985 V65.
I have the sump off and was having a look up into the lower Crankcase when I found a gaping hole near where the cartridge sits. No metal work in the sump pan. Historical damage or horrible casting?

Yours concerned

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I’d say this is factory designed hole.

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Certainly looks like it was made this way to me.
Is it throwing oil everywhere and breaking down?

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No, all is good. I reckon you guys are right.
It’s the first time I’ve worked on it.
Thanks Ross

Definitely intentional, you can see the flash round the edges of the hole. You can also see some pretty ropey looking flow lines in the casting lol. Good old Guzzi, surprising and delighting customers for 100 years!

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Thank you. I can proceed at the weekend with a happy heart. All I’ve got to do now is get at the oil sender, haha.