Yellow Threadlocker

"66P1800inpieces" (66p1800inpieces) 03/03/2020 at 08:17 • Filed to: NASCAR

0

8

The header image (same one I am using ) is from Bradley Brownell’s recent post on Jalopnick showing a NASCAR wheel with 5 lugs using what I thought was yellow thread locker. As it turns out that is a widely available 3M Yellow Weather-stripping adhesive ($10 a tube).

From a quick search online they glue the lugs to the wheel before the race and when they mount the rim during the race the adhesive stretches enough to let the stud protrude while I guess keeping it centered so they can be quickly tightened. I always thought they had some sort of captured nut system.

!!! UNKNOWN CONTENT TYPE !!!

I guess it is a fine balance between too little and too much. The Virginian Pilot had an interesting article in 2009 about how a rule change extended the wheel studs by 1/4" causing pit issues when the glue stretched too far.

jimz > 66P1800inpieces 03/03/2020 at 08:31

1

that glue is useful for enough things where it should be included alongside duct tape and WD-40.

MasterMario - Keeper of the V8s > 66P1800inpieces 03/03/2020 at 08:32

3

Jalopnik actually had an article all about this

https://jalopnik.com/the-casual-science-behind-preparing-wheels-for-a-nascar-1823592908

Thomas Donohue > 66P1800inpieces 03/03/2020 at 08:40

0

Why are they putting it on the threads and the outside of the nut? Based on the article, should it be between the base of the nut and the wheel.

This image appears to show a clear clue being used at the base of a painted yellow nut (assuming yellow for visibility when it goes bouncing down pit lane).

Nibby > 66P1800inpieces 03/03/2020 at 08:43

0

66P1800inpieces > MasterMario - Keeper of the V8s 03/03/2020 at 09:10

3

Great find. As I am reading that article I kinda feel that while this is a neat idea, and who ever came up with it for an edge on the other team deserves massive kudos, but it is kinda stupid and should have been stopped years ago . I want to see a guy fishing around for 5 loose lugs like every other mechanic. I want a minute long pit stop where they can’t remember if the transmission fluid is to be checked while the engine is running, or it is it get it up to temp, then turn it off and let it sit for at least 60 seconds but not over 90.

MasterMario - Keeper of the V8s > 66P1800inpieces 03/03/2020 at 09:38

3

I want to see a guy fishing around for 5 loose lugs like every other mechanic.

lol. I’m not opposed to this.

If only EssExTee could be so grossly incandescent > 66P1800inpieces 03/03/2020 at 12:06

0

Not all teams use the yellow stuff.

Thisismydisplayname > 66P1800inpieces 03/03/2020 at 12:16

1

I just saw the article about the upcoming switch to center lugs for 2021. That and 18” wheels.  That should change the pitstops a bit next year.