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PeachParts Mercedes-Benz Forum (http://www.peachparts.com/shopforum/)
-   Diesel Discussion (http://www.peachparts.com/shopforum/diesel-discussion/)
-   -   Front rotor to hub hex bolts: loctite or not? (http://www.peachparts.com/shopforum/diesel-discussion/322801-front-rotor-hub-hex-bolts-loctite-not.html)

Zacharias 08-09-2012 06:37 PM
Front rotor to hub hex bolts: loctite or not?
 
One DIY I read says to use loctite on the rotor->hub hex bolts. Other says no loctite.

Unless there is a pressing reason not to do so, I would be inclined toward using blue loctite?

Correct?

Thx

TheDon 08-09-2012 06:46 PM
Did the old bolts have blue on them? IIRC they came from the factory with blue. I used blue when I changed rotors on my w123 when I had one.

Zacharias 08-09-2012 07:48 PM
Quote:
Originally Posted by TheDon (Post 2989261)
Did the old bolts have blue on them? IIRC they came from the factory with blue. I used blue when I changed rotors on my w123 when I had one.
I'll tell you when I take them off :D

I am getting ready to do the job, never having done so, and I am trying to cover some questions that arose when reading the DIYs....

qwerty 08-09-2012 08:03 PM
Blue threadlocker on rotor bolts cannot possibly be a bad thing.

Benz Dr. 08-09-2012 08:05 PM
I won't use that stuff on anything. I want things to come apart and not fall apart but I haven't seen that happen yet in the 35 years I've worked on these old cars.

qwerty 08-09-2012 08:16 PM
Quote:
Originally Posted by Benz Dr. (Post 2989301)
I won't use that stuff on anything. I want things to come apart and not fall apart but I haven't seen that happen yet in the 35 years I've worked on these old cars.
Then it is understandable that you are not aware that non-permanent threadlocker like Loctite 242 is specifically formulated for applications that require disassembly.

TheDon 08-09-2012 08:28 PM
Blue is you want to remove it, eventually

Red if you want to hate yourself

gatorblue92 08-10-2012 07:57 AM
Quote:
Originally Posted by TheDon (Post 2989320)
Red if you want to hate yourself
Or be known as the #@$#@! PO by whatever poor sap happens to do the job next time

smiffy6four 08-10-2012 08:03 AM
I never use it for brakes. I do at least 3 brake jobs a day.
I rely on clean threads and correct torque to make sure nothing falls off.

engatwork 08-10-2012 09:04 AM
^2

Some cars don't even have them.

t walgamuth 08-10-2012 10:03 AM
The rotors from the benz factory comewith locktite so I use it on them too. Red.

qwerty 08-10-2012 10:36 AM
Quote:
Originally Posted by smiffy6four (Post 2989554)
I never use it for brakes. I do at least 3 brake jobs a day.
I rely on clean threads and correct torque to make sure nothing falls off.
Proper torque is important. Threadlocker helps ensure that proper torque is maintained. It's tough to make an intelligent argument against its use.

toomany MBZ 08-10-2012 10:37 AM
I use the blue stuff.

funola 08-10-2012 11:05 AM
Doesn't matter what color the loctite is. A little heat (500F) will make it soft as butter.

smiffy6four 08-10-2012 11:18 AM
Subaru doesn't use thread locker on any of the brake components.


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