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Truk
Posted on Monday, February 28, 2005 - 02:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Okay, so I have a slight vibration in the front end and have concluded I need to re-torque my steering stem cap.

The manual says to use Loctite 272 when tightening everything back up. I have checked all over town (Auto and Hardware stores.) I found tons of Loctite, but no Loctite 272. I Found a lot of loctite 271, but no Loctite 272.

When I asked the employees at the various stores I checked, they just gave me that "deer in the headlight look". Or perhaps the comment "Is that the red one or the blue one?"

I didn't find that comment very confidence inspiring since in my mind I was past the "Red or Blue" phase, I was more into the " No. 272" versus "No 271" phase...

Any suggestions? Where did you find your Loctite 272?
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Mikej
Posted on Monday, February 28, 2005 - 03:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

http://www.loctite.com/int_henkel/loctite_us/index.cfm?&pageid=19&layout=3

quote:

272 Threadlocker High Temp./High Strength

Withstands temperatures to 450°F. Provides a fast cure on most surfaces including "as received" fasteners. Recommended for bolts up to 1 1/2" (36 mm) in diameter. Heat and hand tools are required for




http://www.loctite.com/int_henkel/loctite_us/index.cfm?&pageid=19&layout=3

quote:

271™ Threadlocker High Strength

A high strength, low viscosity threadlocker for fasteners up to 1" (25 mm) diameter.

Approvals/Specifications
MIL-SPEC S-46163A Type I, GRADE K ; UL


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Geoffg
Posted on Monday, February 28, 2005 - 03:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hmmm...I'd maybe re-think that.

I did a Google search, and find that Loctite 272 is for "heavy-duty and permanent applications...that require extreme temperature resistance."

It's red, BTW.

Personally, I think I'd like to be able to undo my steering stem cap again in the future--I'd probably use a less aggressive product, such as 271 (which is still pretty aggressive, but doesn't have the high heat resistance).

Check 'em out here: http://www.loctite.us/int_henkel/loctite_us/index.cfm
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Truk
Posted on Monday, February 28, 2005 - 03:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I find this interesting and based on the description and application of 272 versus 271, wonder why the service manual (pg 1-38)would require 272 on the lower fork clamps fasteners and the steering stem pinch bolt.

It would seem that 271 would be better. Is there something I am missing here
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Xring
Posted on Monday, February 28, 2005 - 04:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Personally, I used 242, the medium strength Loctite, because 1)When I adjusted my steering head bearings the first time, the bolts were tight to the point of appearing to be seized; 2) It seems that adjusting the steering head bearings isn't a one-time thing and 3) I, for one, won't be applying heat to my triple clamps/forks to loosen up the Loctite. Aluminum starts to lose its structural strength at a low temperature, and I don't have any way to gauge how much is too much.

I used the blue Loctite, and plan to check the pinch bolts occasionally. Although, for anybody else, I would advise sticking to what the service manual says.

Bill
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Truk
Posted on Monday, February 28, 2005 - 04:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Bill,

Have you noticed any significant impact to the frequency of needing to re-torque when using 242?

Kurt
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Spiderman
Posted on Monday, February 28, 2005 - 04:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Use the Blue stuff and you will be fine.
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Brupska
Posted on Monday, February 28, 2005 - 05:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yes you will have to check the steering head more than the service manual says. My 9S had a loose steering head after 1000 miles. The dealer told me to check it more often since I rode it hard. They acted like I was a bad person for riding hard. I just told them that is why I got it. LOL. I used red loctite on a steering shaft support in my race car and I couldn't get it off with a air impact wrench. So I will be using the blue also. Good luck Brupska
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Xring
Posted on Monday, February 28, 2005 - 10:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hey, Kurt.

I haven't had a chance to experiment yet. Just got the bike, the steering head bearings were loose when I got it, and I've only ridden it a few miles since I adjusted them.

From prior experience, I won't be using the red Loctite on anything that I plan to remove later.

But I'll also keep some allen wrenches handy, and keep an eye on the pinch bolts, at least for a while.

Your results may vary.

Good luck,
Bill
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