Quote:
Originally Posted by michaelmount123
Here's the deal on loose flywheels which are all too common, especially on the 6 bolt crankshafts:
When Loctite is used on the bolt threads, screwing them in pushes some of the Loctite between the FW and the crankshaft flange. Once torqued, the Loctite prevents a solid metal to metal joint and the FW will loosen in time - particularly in a performance application. The solution is to carefully clean both the FW back surface and the crank flange, then put one drop of Loctite (red) in the female threads of the crankshaft. Fit the FW, and torque the bolts in an alternating pattern in several stages to 110 ft. lbs. I've never had a FW loosen over many years and many 8000+RPM engines.
The other issues related to case repair have been addressed above. The seal should not push out if the engine is relatively fresh and the breather is unobstructed.
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I’d like to see a scientific review of this.