jeremyrschroeder 6 #1 Posted November 11, 2014 This doesn't seams like it will be easy - soaking it in WD40 now. Any tips - please share. Share this post Link to post Share on other sites
slammer302 2,156 #2 Posted November 11, 2014 If you check Brian Miller's web site I think he talks about a tool that is made for removing those types of flywheels Share this post Link to post Share on other sites
pacer 3,177 #3 Posted November 11, 2014 A flywheel can be a booger - youll have to have a puller of this type. Run it up as tight as you can get it - tight!, and probably have to rap the end of the threaded piece with a hammer several time to give it that extra 'jolt' http://www.ebay.com/itm/GM-FORD-HARMONIC-TIMING-WHEEL-BALANCER-GEAR-PULLER-PULLING-AUTO-TOOL-SET-KIT-/290671227129?pt=LH_DefaultDomain_0&hash=item43ad5af0f9 1 Share this post Link to post Share on other sites
AMC RULES 37,211 #4 Posted November 11, 2014 Lay the engine over on it's side(flywheel side facing up)... back the nut off the flywheel, but leave it on the end of the bolt(don't take it off)... insert two screwdrivers under the flywheel(in from both sides)... pick the engine up with screwdrivers, then use a good sized hammer to rap on the nut. Should pop free that way...and, don't be afraid to give it a good wack. Share this post Link to post Share on other sites
Racinbob 11,997 #5 Posted November 11, 2014 I used a combination of a couple of the ideas here. A puller like pacer posted and a hammer as Craig mentioned. I soaked it for several days with PB Blaster and tried every day or so. I probably could have wacked it harder with the hammer to get it off quicker but I was in no hurry. Finally, one day it popped off so easy it startled me. You know, like lifting an item you think weighs 50 pounds but it was actually only 2 pounds. 2 Share this post Link to post Share on other sites
doc724 925 #6 Posted November 11, 2014 Many years ago when I did not anything about small engines, a friend who did small engine repair gave me this tip. Of course a 3 hp lawnmower engine is a different animal than the bigger ones, but I think you may find his solution humorous. On those small engines, the crank shaft is tapered where the flywheel sits. His solution was to get a persuader, also known as a 4 ft 2x4, and after you remove the nut, just give the flywheel a good whack. Surprisingly it worked quite well. There was enough inertia to jog the flywheel loose and the 2x4 was soft enough to not damage the fins if you had a misplaced swing. These days, I leave things alone and then if something major repair is needed I usually seek out professional help. Share this post Link to post Share on other sites
Wishin4a416 2,192 #7 Posted November 12, 2014 I always pop them with a puller and an air wrench @ 120. Share this post Link to post Share on other sites
jeremyrschroeder 6 #8 Posted November 13, 2014 So I blasted it with PB today, like everywhere suggested - not sure why peanut butter would work but it did the job! That and a really really wide flat chisel about 1.5"wide, the width is key as there is no why to pry up on these with out bending and being on the verge of breaking the casing. The width made it possible to finally pry. PB, wide chisel and rubber mallet. New believer in PB, way better than WD! Share this post Link to post Share on other sites
bmsgaffer 2,053 #9 Posted November 13, 2014 not sure why peanut butter would work but it did the job! I am hoping you are joking, right...? If not, PLEASE PLEASE PLEASE post pictures of your k91 flywheel covered in peanut butter... Share this post Link to post Share on other sites
VinsRJ 723 #10 Posted November 13, 2014 All I have ever needed to do is screw the nut back on the shaft just flush with the crank end... hit the side of the flywheel with a hammer in a couple places and the just tap/hit (not to hard) on the end of the crank with the nut and... "pop" they all come right off. Share this post Link to post Share on other sites
