B18C LSD gearbox - Vent on top of box?
Just a quick question; I just got my engine back after getting a new final drive fitted (3.4FD since you ask, & no that's not a typo) & since I haven't put it back in the car yet, I have enough room to notice a vent on top of the gearbox, & I can see a large cog inside. The vent is four vertical slits about 30mm high. I haven't noticed it before.
My question, which is hopefully specific enough not to be too nooby, is;
Should this be covered to prevent crap getting into the box? & if so, how?
I'll be contacting the mechanics tomorrow, but can anyone give me a quick answer so I can get some sleep tonight! :(