ineedanother 2,186 #1 Posted 9 hours ago My apologies if this has been addressed before since I suspect it has, but I got exhausted before the search did I need a good puller for this flywheel (k341). This one has likely never moved since installed but it's in pretty good condition. I could probably manage but wouldn't shy away from acquiring a good tool for this since I have a few others with similar needs. TIA. 1 Share this post Link to post Share on other sites
wallfish 19,854 #2 Posted 8 hours ago (edited) No puller required Wedge the flywheel from the back against the plate but not super tight. I use 2 large screwdrivers spaced apart on each side. Loosen the nut so it's at the edge of the threads plus a tad tp protect the threads. Smack the nut with a brass hammer and viola. the flywheel is off. A piece of hardwood and any old hammer will wok if you don't have a brass hammer. I've yet to have a flywheel that didn't come off doing it this way Edited 8 hours ago by wallfish 5 Share this post Link to post Share on other sites
Handy Don 16,387 #3 Posted 8 hours ago (edited) 8 minutes ago, wallfish said: I've yet to have a flywheel that didn't come off doing it this way The blown Onan P220 that I parted had an awkward and stubborn flywheel. The service manual showed a simple puller with four screws through a plate and into threaded holes in the flywheel. Made it about 15 minutes. Snug then a bit more on the screws and a tap on the plate with a mallet and had the flywheel off in about 2 minutes. And yes leaving the nut on the crankshaft is critical. Bust or chip a fin and you’re done and cursing a blue streak. Edited 8 hours ago by Handy Don 3 Share this post Link to post Share on other sites
ineedanother 2,186 #4 Posted 8 hours ago 18 minutes ago, wallfish said: No puller required Wedge the flywheel from the back against the plate but not super tight. I use 2 large screwdrivers spaced apart on each side. Loosen the nut so it's at the edge of the threads plus a tad tp protect the threads. Smack the nut with a brass hammer and viola. the flywheel is off. A piece of hardwood and any old hammer will wok if you don't have a brass hammer. I've yet to have a flywheel that didn't come off doing it this way That's how I've done it in the past and trust it, but have always been concerned about damaging the bearing plate and I don't think this one has been off in 50 years. Share this post Link to post Share on other sites
ineedanother 2,186 #5 Posted 7 hours ago 4 minutes ago, ineedanother said: That's how I've done it in the past and trust it, but have always been concerned about damaging the bearing plate and I don't think this one has been off in 50 years. Hard for me to believe, but I don't think this thing has ever had it's skirt lifted Share this post Link to post Share on other sites
wallfish 19,854 #6 Posted 7 hours ago 6 minutes ago, ineedanother said: That's how I've done it in the past and trust it, but have always been concerned about damaging the bearing plate and I don't think this one has been off in 50 years. Don't pick the weak points of the plate to wedge it and it'll pop off without breaking the plate. Doubtful most I've popped off were ever done before. Did you actually try it yet? You can use wood wedges behind it but then you gotta smack that nut/crank end much harder to make up for the give of the wood. Share this post Link to post Share on other sites
ineedanother 2,186 #7 Posted 7 hours ago 2 minutes ago, wallfish said: Don't pick the weak points of the plate to wedge it and it'll pop off without breaking the plate. Doubtful most I've popped off were ever done before. Did you actually try it yet? You can use wood wedges behind it but then you gotta smack that nut/crank end much harder to make up for the give of the wood. No, I haven't tried yet and don't doubt that I can get it off but just looking for best practice to avoid any adverse outcomes. I'm pretty confident I can wedge it off with pressure and impact. 2 Share this post Link to post Share on other sites
wallfish 19,854 #8 Posted 7 hours ago 3 minutes ago, ineedanother said: No, I haven't tried yet and don't doubt that I can get it off but just looking for best practice to avoid any adverse outcomes. I'm pretty confident I can wedge it off with pressure and impact. If that doesn't work then buy a puller but you'll probably still need to wack the bolt. Those holes in it are only 1/4-20 threads so use all 4 holes for a puller or something that can get under the edges of the flywheel. 2 Share this post Link to post Share on other sites
ineedanother 2,186 #9 Posted 7 hours ago Overanalyzed... 1 Share this post Link to post Share on other sites
squonk 46,275 #10 Posted 1 hour ago The proper type of puller is a harmonic balancer puller. Cheap enough and if you're cheaper you can rent them at some auto parts stores. Clean out the bolt holes with a tap first! 3 Share this post Link to post Share on other sites
JoeM 9,824 #11 Posted 1 hour ago 35 minutes ago, squonk said: The proper type of puller is a harmonic balancer puller. that is what I use. I pretty much quit beating on the shaft when I was taking the bearing plate out of an engine. The bearing was super tight on the shaft and snug as a bug in the plate. The only play was in the bearing. For all it takes to use a puller I just don't like relying on that small amount of play. Share this post Link to post Share on other sites
Retired Wrencher 6,612 #12 Posted 1 hour ago Lots of good info in this post! Nice job guys. Share this post Link to post Share on other sites
