That was an adventure. Ok... I removed all the old bearings. I installed two new ones in #3 and #4 - sanded by hand - still tight. Installed #2 and #1, then modded an old stock cam similar to Procycles - cut two diagonal lines along each journal on opposite sides. Cut down the burrs with 2000grit.
Inserted in the engine lubed up... very difficult to turn, more so then the new cam was with the bearings that were previously in the block. A makita 20v 1/4" impact and 1/2" 20v rigid drill would not turn it. Moved it by hand some more with a wrench... tried the drill again... got it to go a few times but was very labored (and heard that same squeak I did originally....so yes, cam bearings can squeak!)
Took the scraping cam out expecting the worst. Did a good job on #2, 3, 4... but destroyed #1. Two large opposing gashes... probably from the initial turn. Looks like #1 was the tightest. Took #1 out. The original #1, although bad looking, cleaned up with a maroon scrub pad. Cleaned up 2-3-4 with the same (now worn) maroon pad. Put original #1 in - OMG cam turns reasonably well! Not one finger super smooth but much better. I was about to call it quits and walk away with a victory when I realized I put #1 in a hair too far... so I took it back out and reinserted.
Now cam won't go in #1 at all. Keep in mind this is the third time #1 went in. Discovered that it's a no-no to re-insert a cam bearing that's already been inserted once. Time to get another set of cam bearings just for #1. I'll make sure it slides on the cam before I put it in the motor. I'll install #1, then test fit the cam in backwards. I'll keep using the maroon pad until cam goes in backwards, then should be good... or at least good enough to run the scraper again
Y'all with experience are probably laughing if you've made it this far.... Learning the hard way... kinda sorta fun. bit costly. Procycle I read your other thread. Maybe my #1 is like your #4 but worse...
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