When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
There is no reason to use loctite or lock washers. If you snug the lock nuts reasonably, then you should have no issues. There is nothing wrong with using a different nut as long as there is enough clearance inside the pushrod tube.
I have read some posts about this lock nuts came loose after while, so I am thinking about adding a lock washer between each lock nuts and the larger rod. I can't find any possibility of going wrong with this set up, but more brain would be better than my old brain.
What do you guys think? Bad/good idea? Why?
Thanks much in advance.
I recently read an article (I can't remember where, some mech. engineering mag.) that stated that through testing that lock washers don't work...that bolts secured with lock washers come loose as often as those without them...with that said, if you are really worried I would use some loctite...you can use either blue (med. strength) white (med. strength, high temp) or green ( penetrating, med strength) just put a drop where the threads and nut meet, it will wick into the threads, with any of these you need to clean off the oil first for best results...
I thought I did answer your question. If you add a lockwasher, that lockwasher is one more potential failure mode. And the fact that it is internal to the engine, it is not something that you could easily inspect periodically. That is the reason I suggested loctite if you're concerned of the nut loosening. I would not use a lockwasher on any internal engine component.
Thanks for the explanation!
I am still thinking out-loud: with, or without the lock washer, if the locknut failed, then the engine will be damaged eventually.
If the locknut secures the locknut, then what will cause the washer to fail? How likely?
The reason that leads me to this topic, because I don't like to use Loctite inside the engine system. Beside, I don't see the manual says anything about using Loctite at this step. The Loctite may get into the other places. I guess!
Just a logical brainstorm.
A forum member (poorboy) at harleytechtalk.net (org)? sells sets of machined, grade 8 locknuts for these pushrods. Might be worth a peek. Also, what date would be good for newer lock nuts in the H-D package? Is their a newer a/b designator?
I would recommend not using the thin nuts that come with the sceamin eagle tapered rods. I cracked one when I was installing like it was made of tempered glass. I picked up some automotive grade hardened nuts and used those. (a little bigger but no clearence issues) And blue locktite. And there isnt any way to get a tourque wrench on them, so whoever said torque them to specs hasn't been there.
Any internal nut or washer in any engine is going to be a machined hardened part. Off the shelf hardware is soft and will fail internally, especially if used on something that moves as much as a pushrod with varying degrees of stress. Use locktite, I think there is a green type for internal engine parts
There is no reason to use loctite or lock washers. If you snug the lock nuts reasonably, then you should have no issues. There is nothing wrong with using a different nut as long as there is enough clearance inside the pushrod tube.
Slideshow: Jason Momoa's latest restoration project blends 1920s Harley-Davidsons with modern electric technology, creating some of the most unusual hybrid motorcycles ever built.
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom
Slideshow: Killer Custom's latest build relies on styling changes rather than performance upgrades, giving the cruiser an entirely different personality.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.