Hi, I've taken the primary chaincase cover of my 1971 A65 off and find there is a slow leak of oil from behind the triplex drive sprocket.
Am thinking this is the crankshaft oil seal passing oil.
Thought I'd take off the generator stator and rotor to have a look but I can't get the stator off. My three legged puller doesn't fit properly as there aren't three evenly spaced areas to hook it on to.
Should it be this tight?
How can I get it off?
Should I worry about the oil leak in the first place?
JW
Is the leak from the engine into the timing case?
If so the seal may be a bit worn or hard, but if its small I would leave it alone. If the rotor is very solid you may to more damage trying to get to the seal.
Hi,
The stators can be a fiddle to get off and it is easy to cause the laminations to open up. It is possible to get very thin blade in at the 7 and 11 'o'clock positions. Go a bit at a time.
It is possible to get a puller on the rotor but to get a proper look the sprocket and chain is in the way. Replacing it requires taking the clutch etc. off.
If it is a slow leak, then just monitor the primary oil level to see how much gets in there.
Dave.
Gently tease the stator off as Dave suggested, it is supposed to be a firm fit yes. Once off, and rotor and sprocket (eek and clutch) is removed, tease out the crank spacer - easy enough to do, pick out the old seal and pop the new one in.
Your hardest job is playing with the clutch.
I had to do this on mine, I have a dry clutch with belt drive, so it wasn't an option. But it was easier to do. Problem was caused by newly manufactured crank spacer which the oil seal runs on. Hadn't been finished correctly. The oil seal did the finishing process polishing the spacer up where it sat at detriment to the seal. Since changing the seal it's been fine since.
Thanks for the responses Allan, Dave and Limeyrob.
I think I'll leave it alone for the meantime and keep an eye on the primary oil level.
Hopefully can leave it until other jobs need doing at some point.
The past couple of summers have been really good on "Old Bertie" and I hope to get a few more miles this year yet.
Cheers.
John