SuzukiSavage.com - question on checking front pulley nut torque

Tocsik

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question on checking front pulley nut torque
06/27/21 at 09:12:45

When checking tightness on the front pulley nut, is it OK to bend down the tabs of the washer and just check the torque? Or do I need to remove the nut, clean the splines and reapply red thread locker, too? Just wondering if any force on the nut will break the bond of the existing thread locker.

I have the front pulley cover off and have been playing with rear wheel alignment to minimize some noise. Rear pulley already shimmed but has a bit of a wiggle, but I'm not a machinist so cant do the bushing mod I've read about.

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28890 L.A. California Gender:	Re: question on checking front pulley nut torque Reply #1 - 06/27/21 at 10:48:53 Just re-torquing the nut isn't enough. You need to remove the nut and clean the treads. And you might as well check the splines for looseness. Any looseness will increase over time until failure.
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DragBikeMike

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Re: question on checking front pulley nut torque
Reply #2 - 06/27/21 at 12:05:48

To address that pulley wobble, you can install a Duplex ball bearing in the pulley hub. It's easy to do, no machining, inexpensive, works great. It will permanently fix the problem.

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1561964431

Align the rear wheel using a long straight edge. You have to remove the left rear shock and chain guard but it's well worth the effort. This shows a saw-guide used for making straight cuts with a rip-saw. It works great. I clamp it to the rear pulley, then adjust the belt adjuster bolts until the straight edge is aligned with the front pulley (parallel).

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Straight_Edge_Alignment_2_001.JPG

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DragBikeMike Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 4406 Honolulu	Re: question on checking front pulley nut torque Reply #3 - 06/27/21 at 12:08:41 This shows how the straight edge lines up with the front pulley when things are aligned properly. You might have to alter the technique a bit since you have a Kawasaki front pulley, but the concept remains the same. When it all lines up, the pulleys, and belt will all be parallel with the straight edge.
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Ruttly Serious Thumper Offline Thumpers Rule Posts: 5113 Manteca , CA Gender:	Re: question on checking front pulley nut torque Reply #4 - 06/27/21 at 13:12:05 Very cool , I bet that setup would work fine on chain sprocket alignment with chain and shock and guards removed. Who has the upgrade ? I’ll be changing the rear tire soon , I can install it then.
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Ruttly Serious Thumper Offline Thumpers Rule Posts: 5113 Manteca , CA Gender:	Re: question on checking front pulley nut torque Reply #5 - 06/27/21 at 13:25:46 I got it. Tanxs DBM
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Ruttly Serious Thumper Offline Thumpers Rule Posts: 5113 Manteca , CA Gender:	Re: question on checking front pulley nut torque Reply #6 - 06/27/21 at 13:43:59 BTW , love your angle finder I’ll have a buddy at work turn that spacer down
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Hiko Senior Member Offline SuzukiSavage.com Rocks! Posts: 250 Tauranga New Zealand Gender:	Re: question on checking front pulley nut torque Reply #7 - 06/27/21 at 16:36:00 Ruttly wrote on 06/27/21 at 13:43:59: BTW , love your angle finder I’ll have a buddy at work turn that spacer down You wont regret it Works great
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Armen Serious Thumper Offline Half-Witted Wrench-Jockey from Jersey Posts: 1452	Re: question on checking front pulley nut torque Reply #8 - 06/27/21 at 16:56:34 I prob have a few axle spacers left. If not, I can turn yours down in a day and ship it back. The DBM double wide bearing is the real fix!
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Tocsik

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Re: question on checking front pulley nut torque
Reply #9 - 06/28/21 at 08:45:59

Thanks guys. I pulled off the front pulley, cleaned everything up and reinstalled. I don't think it had backed off, so hopefully my cleanup and reapplication of red thread locker will hold as well as this last time.
Air impact took off the nut, but that red thread locker really grabs. Cleaned up with small diameter wire wheel in my drill. Found out my battery terminal cleaner wire brush tool was also good to run around the threads and male part of that brush worked well for the inside threads on the nut. Cleaned the threads with brake parts cleaner, reapplied the red thread locker. Had my wife sit on the bike with the brakes on and torqued it back to 95 ft pounds. As a test, I also straddled the bike, foot on the rear brake and was able to pull up on the torque wrench easily til a heard the click again. Easy to do solo.

I'll investigate getting that rear bearing done, too. Seems like the best plan for longevity.

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Tocsik

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Re: question on checking front pulley nut torque
Reply #10 - 06/28/21 at 10:15:37

Armen, let me know if you have any spacers left. Otherwise, I'll reach out about sending mine to you when I put a new rear tire on. My 140/90 has 16 K miles on it and still in good shape, but I'm ready to go back to a less beefy tire with a similar diameter. Gotta dig out that thread which really spelled out the differences nicely in some good tire choices!
Thx.

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