Ironmike
Well-Known Member
Well, decided to bump up the power this winter, on my 410 stroker. Getting my heads ported, going to a pretty big solid roller, Super Victor, blah, blah, blah.
Tearing things apart today and noticed the cam was kinda hard to spin. Too hard. So when I try to get it out, it won't come. Slide it a quarter inch out and that's it. Won't spin, won't move. Stuck.
Gently nudge it back in and just as before, it turns, but with effort.
I put on my readers and look a lot closer and see what you see in the first piture. Babbit material at the bottom of the journal. Upon looking, journals 2, 3, and 4 all looked the same.
So with a few "whacks" out she comes. The second pic is right after it came out. The last picture is the 3 pieces of babbit I pulled off the bearings.
All the bearings look good, cam journals too. Keep in mind this thing was running great prior to disassembly. Only 5400 miles. I put the cam back in for fun, and rotation effort was, in my mind, too much.
Now what? Is it a core problem? How easy SHOULD the cam spin? I'm stuck, for now. Hate to press on without knowing the outcome.
This thing had the same sorta problem when first built. My guy stood up, backed up his work and put in new bearings and a new cam....all was well. Figure I can fix this issue on my own. But how?
Tearing things apart today and noticed the cam was kinda hard to spin. Too hard. So when I try to get it out, it won't come. Slide it a quarter inch out and that's it. Won't spin, won't move. Stuck.
Gently nudge it back in and just as before, it turns, but with effort.
I put on my readers and look a lot closer and see what you see in the first piture. Babbit material at the bottom of the journal. Upon looking, journals 2, 3, and 4 all looked the same.
So with a few "whacks" out she comes. The second pic is right after it came out. The last picture is the 3 pieces of babbit I pulled off the bearings.
All the bearings look good, cam journals too. Keep in mind this thing was running great prior to disassembly. Only 5400 miles. I put the cam back in for fun, and rotation effort was, in my mind, too much.
Now what? Is it a core problem? How easy SHOULD the cam spin? I'm stuck, for now. Hate to press on without knowing the outcome.
This thing had the same sorta problem when first built. My guy stood up, backed up his work and put in new bearings and a new cam....all was well. Figure I can fix this issue on my own. But how?