Anyone ever grease the propeller shaft slip spline? My 63 Wildcat has developed a shudder at just under 30 mph and I was wondering if that could be the issue. Problem is the grease port is not where the book says it is, or is it and I just don’t see it. I thought this would be an easy place to start, but that plug is hiding somewhere.
Yes, it's very possible that can be the cause. You will have to look at the X-Frame towards the rear of the X. There are a couple holes there. Using a flashlight look for a plug, while you turn the shaft, that you remove & install a grease fitting. The plug will be 9/32". It also has a center support bearing surrounded in rubber. If the rubber deteriorates will also cause a shudder. Tom T.
I figured it would be in there. It couldn’t possibly be easy to get to; that would take all the fun out of it. I’m sure it will be rusted tight just for added fun. Thanks for the help. I'll keep you posted.
