Sooo... I was apparently half-schooled about using loctite or some kind of thread lock chemical on "stressed bolts or fasteners", namely flywheel bolts, and how i shouldn't do that. i have asked several seasoned builders i hang w/ from time to time, check the webs, etc... found little or no relevant information to support this opinion. please enlighten me as to why i shouldn't drop a dabble of loctite on my threads when assembling.
Perhaps some casual reading here might be enlightening for you and those seasoned builders.
http://www.arp-bolts.com/Tech/TechInstall.html
Fastener Retention Overview
There are three methods that can be employed to determine how much tension is exerted on a fastener; using a torque wrench, measuring the amount of stretch, and turning the fastener a pre-determined amount (torque angle). Of these methods, use of a stretch gauge is the most accurate.
It is important to note that in order for a fastener to function properly it must be ?stretched? a specific amount. The material?s ability to ?rebound? like a spring is what provides the clamping force. You should know that different materials react differently to these conditions, and ARP engineers have designed each fastener to operate within specific ranges.
On the other hand, if a fastener is over torqued and becomes stretched too much ? you have exceeded the yield strength and it?s ruined. If the fastener is longer than manufactured ? even if it is only .001,˝ it is in a partially failed condition. Therefore, ARP has engineered its fasteners with the ductility to stretch a given amount and rebound for proper clamping.
Heat, primarily in aluminum, is another problem area. Because the thermal expansion rate of aluminum is far greater than that of steel it is possible to stretch a fastener beyond yield as the aluminum expands under heat. An effective way of counteracting material expansion is through producing a more flexible bolt.....
f the stretch method cannot be used in a particular installation, and the fasteners must be installed by torque alone, there are certain factors that should be taken into account. ARP research has verified the following ?rules? pertaining to use of a torque wrench:
1. The friction factor changes from one application to the next. That is, the friction is at its highest value when the fastener is first tightened. Each additional time the fastener is torqued and loosened, this value gets smaller. Eventually the friction levels out and becomes constant for all following repetitions. Therefore, new fasteners should be tightened and loosened through several cycles before applying final torque. The number of times depends on the lubricant. For all situations where ARP lubricants are used, five cycles are required before final torquing.
2. The lubricant used is the main factor in determining friction, and therefore, the torque for a particular installation. Motor oil is a commonly used lubricant because of it?s ready availability. If less friction is desired in order to install the fasteners with less torque, special low friction lubricants are available. With special lubes, the required torque can be reduced as much as 20 to 30 percent. It is important to keep in mind that the reverse is also true. If the torque value has been specified for a particular fastener on the basis of low friction lube, installing the fastener with motor oil will result in insufficient preload; the torque has to be increased to compensate for the extra friction caused by the motor oil.
3. Surface finish is also important. For example, black oxide behaves differently than a polished fastener. It is therefore important to observe the torque recommendations supplied with each fastener."
Maybe look in the catalog cause I don't want to waste more time wandering around their website.
Note that Loctite is not a lubricant, it is a glue essentially.