K1100 left pivot pin

[cayuse60]

1997 K1100 LT, 7800 miles. First time removal of left hand pivot pin. "..very difficult to break loose" is an understatement. I have an 18" breaker bar with a 18" pipe extension and it still will not break loose.
Any Ideas as to the amount of force I can put on this pin?

[PGlaves]

You need to take a propane torch and carefully heat the pin by aiming the pencil of the flame right into the hex where the Allen wrench goes. You need to melt the high strength thread locking compound BMW uses and specifies on that pivot. You need to get it to about 250 degrees F. Be careful to apply the heat to the center and to not damage the paint surrounding the pivot. Once the thread locker gets hot you can break it loose with a normal 1/2" breaker bar - no pipe cheater is needed.

[cayuse60]

Thanks Paul. I just needed a little assurance before I broke out the torch. I assume it must be red thread locker or something eqivalent.

[cayuse60]

It finally broke loose with ALOT of heat , 18" breaker and 18" cheater bar and me leaning down on the back of the bike while I pulled up on the bars. That is some mean thread locking compound. Now to finish the job of lubricating the splines.

[PHMarvin]

Hi, Tim,
I don't believe it is red Loctite. If I remember correctly, it is Loctite 270. I understand it's not too easily found. Tom Cutter at Rubber Chicken Racing Garage (www.rubberchickenracinggarage.com) sells it.

[bikerfish1100]

i've gone into the pivot bearings on my R1100S (same set up as your K11) more than once now. Milwaukee heat gun (sold for strippign paint) works great, with no potential for flame damage.
yeah, 270 Loctite is spec'd for those pivot pins.

[cayuse60]

i've gone into the pivot bearings on my R1100S (same set up as your K11) more than once now. Milwaukee heat gun (sold for strippign paint) works great, with no potential for flame damage.
yeah, 270 Loctite is spec'd for those pivot pins.

"Apply 2 drops of blue loctite (No. 242) to the threads and screw the pivot pin back in.
Tighten the left hand pivot pin to 105nm (77 ft-lb.)
Page 620 of Clymer manual.

[bikerfish1100]

i think those torque specs are incorrect. 77 ft lbs on the left floating pin sounds WAY high, nor could i even find Table 10, but did find it listed as 5.6 ft lbs on pg 422 (which is a lot closer to what i'm familiar with), but I see the loctite specs you quoted.
i've gone over to the Oilite bushings, and have gotten used to those torque specs and loctite recommendations. sorry for any confusion.
i'm wondering if the torque and loctite specs have been updated.
anyone else have info on that?

[PGlaves]

i think those torque specs are incorrect. 77 ft lbs on the left floating pin sounds WAY high, nor could i even find Table 10, but did find it listed as 5.6 ft lbs on pg 422 (which is a lot closer to what i'm familiar with), but I see the loctite specs you quoted.
i've gone over to the Oilite bushings, and have gotten used to those torque specs and loctite recommendations. sorry for any confusion.
i'm wondering if the torque and loctite specs have been updated.
anyone else have info on that?

Left pin is the fixed flanged pin shown in the photo in the original post.

The floating pin is the right one - on it the locknut gets 77 ft. lb. but not the pin itself.

[bikerfish1100]

so fixed/floating is done in reverse of the setup on oilheads? weird :scratch

[PGlaves]

so fixed/floating is done in reverse of the setup on oilheads? weird :scratch

Yes it is. Notice the rear disk in the photo.

[bikerfish1100]

Any idea/knowledge on why they flipped it over on the later bikes? To better handle torsional stresses?

[cayuse60]

i think those torque specs are incorrect. 77 ft lbs on the left floating pin sounds WAY high, nor could i even find Table 10, but did find it listed as 5.6 ft lbs on pg 422 (which is a lot closer to what i'm familiar with), but I see the loctite specs you quoted.
i've gone over to the Oilite bushings, and have gotten used to those torque specs and loctite recommendations. sorry for any confusion.
i'm wondering if the torque and loctite specs have been updated.
anyone else have info on that?

The left pin that attaches to the Final Drive is a fixed Pin (12) and does require 77 ft/lb. The torgue on the lock nut on the right pin (6) is also 77 ft/lb where the torgue on the pin (10) is 65 in./lb or 5.6 ft/lb.

[PGlaves]

Any idea/knowledge on why they flipped it over on the later bikes? To better handle torsional stresses?

Nope - just a different team of engineers. I'm fairly certain that the fixed pin tightened and the movable pin with lock nut tightened are pretty close to the same structurally.