...ALWAYS, ALWAYS, ALWAYS have your flywheels trued and welded AND ALWAYS have a Timkin bearing upgrade installed. You can fill a book with who does the best flywheel reinforcement. Dark Horse, BC Gerolamy (we use them ), or who ever, they are all better than the factory unwelded flywheels. My 2002 FLHT has a 95" motor, Woods 9 cams, S&S gear drive, Delkron plate, fueling pump, BC Gerolamy head work makes 119 hp and 129tq, after over 50,000 miles i am at .001 total pinion runout! I have customer with a 2007 Glide in the shop now that has 11,000 miles and .031 run out on the pinion shaft! The guy did not listen and it took out his Fueling Oil pump and plate, his S&S gear drive, and his Woods cams. If he would have spent the extra $200 for the weld and true, $150 for the Timkin and sleeve, and 4 more hours labor, he would have had a bill of around $3800. Instead he spent $3000 to install all of his hot rod stuff 8 months ago and now another $3800 to replace it all the right way, that is $6800! Every set of HD factory flywheels are scissored or will scissor and can damage the pinion shaft, bearings, cam plate, oil pump, cams, tensioners or gear drive, and cases. I tell customers this every day "I will bet my labor, fluids, and gaskets that your fly wheels are out of factory specs." I have never had to eat my words or my labor. The problem is that the MOCO will only swap out fly wheels IF they see that they are out of true, with another set of weak flywheels. If you are building a motor or having factory warranty work done, insist that they have the wheels welded and trued before they install them. Easy ways for a novice mechanic to check the condition of the flywheels are to look for case leaks (wetness around the case half seam), pull the cam cover and look for metal, or with the cam cover removed pull the plug wires and turn over the motor and watch the pinion shaft ( the round shaft that spins at the bottom of the cam plate)to see if it is wobbling. If you see any of those symptoms, take her in! If i can help with any thing, let me know and i will do what i can...and mention the forum for the best deal i can get you. Big Jim
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Topic: Lever's upgrade (Read 19820 times)