August 21, 20233 yr I have to remove the flywheel rotor to adjust the ignition timing of my 188 Alpina. What is the best way to lock the flywheel rotation? I don’t have a flywheel holder (strap tool). Is it appropriate to use the holes in the rotor to put a bracket (to the frame for example) for blocking? Thank's for your help.
August 21, 20233 yr Yes as long as nothing protrudes inside as it could damage the stator. It's a normal thing to undo the nut with an impact driver/rattle gun. As for tools to ergonomically hold it still while you tighten the nut, an adjustable two-pin wrench works on just about every magneto flywheel I've had to work on. I find it better than a strap tool. Something like this: https://www.maxiloc.com.au/product/amf-adjustable-pin-wrench-758/
August 21, 20233 yr Author Finally, it was easy to unscrew the central nut. I did a bracket between flywheel and frame. But now, I can't extract the flywheel despite using a good flywheel puller M33x1.5. Any trick to help? Do you use an impact driver/rattle gun for this too? Would a bearing ball at the contact surface make it easier?
August 21, 20233 yr You need a flywheel puller to extract the flywheel You may need an impact gun, for the central bolt, at the extractor. Be careful not to destroy the threads, I think the risk is low, when disassembly. You may need something between the crankshaft threads and central bult
August 21, 20233 yr Author I got it by heating the flywheel center with an electric heater gun. Thank you all.
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.