Trailblazer 250
#43
Harmonic balancer puller. You can rent these at almost all auto houses for a refundable deposit. Here's an example on a 700 flywheel in a dune buggy,but same principle on how to pull the flywheel. You need a 1/2" impact...
#44
I might just buy one now that I know for sure. They can be had for cheap on amazon. I'm replacing the seals. Then I'm going to do a compression test, then possibly a top end depending on the test. I'm stripping it down anyway for a frame up rebuild.
#47
Yea I been but I've been scared of the heat around that area. I broke the bolts I bought. I'm thinking about tapping them out to an 8mm bolt see if that helps. Those 6mm bolts were stretching like rubber. I tried both hand tools and air impact...I'll get it lol.
#48
Use grade 8 bolts,put it under pressure and use plenty of heat around the crank shaft. Tap the end of the puller bolt straight on a couple times. Flywheel should pop off.
#49
Sometimes cheap imported bolts will be marked grade 8 when they're really grade 5, or grade 5 when they're really grade 2. If they have both U.S. and Chinese bolts at the store, get the American made no matter what they cost. A little pocket change can make a big difference in what you get. In metric sizes it looks like Class 10.9 is ~= to grade 8, and Class 8.8 would be in the neighborhood of grade 5.



