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Morning all, I was investigating an oil leak from around the CAS this weekend and have found it's coming from the little drain hole in the bottom of the CAS (pic attached) then out over the mounting/locking tab on the front cover. So, it appears oil is getting into the main top housing of my CAS. My assumption is that hole is for like water to drain out not oil, is that correct? If so can a CAS be rebuilt or is this normal?? Cheers, Karl
So I've pulled the CAS apart and found the following, there is a spiral cut into the shaft that runs up past the bottom bearing and extends to just above the drive gear..... as per pics.....
Now for some guessing, normally I think the CAS rotated anti-clockwise, if so that spiral would effectively be drawing anything, like oil, that exists in the shaft body of the CAS out the bottom to be deposited in the sump. I however, in all of my wisdom am running the CAS in the top hole of a Twin Dizzy front cover, so my CAS is running clockwise. Which will be reversing the action of that spiral and slowly forcing oil up into the shaft body and main body of the CAS.
