ORIGINAL: dadragon
dont use the RED you will never get the muff back off,the blue comes back off,I use star lock washers,you can get them with ID and OD locking,I use ID that means the solid part is on the outside of the washer,any hardware or part stores carry them.I never put any kind of goop on my engines.just a thought.
As the late great Harry Morgan said: " Just the facts "
1. I have always used REDloctite on my gassers, the mufflers stay put until I want to remove them unless I have an overheating issue.
2. I have never stripped the threads in the cylinder.
3. The muffler bolts DONOT get any hotter then head temps. Do I really need to point out the the entire cylinder is a heat sink that for the most part has 50+ MPH of airflow?
4. The more bolt engagement the more surface contact area for the loctite. This is a no brainer.
5. If you are cleaning you bolts and threads then using loctite, silicon, ultra copper or whatever and are still having your muffler work loose, odds are you have a vibration issue or are running too hot or both. This would apply to 95% of cases.