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swing arm pivot bolt

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Billpan58
Posts: 113
Joined: Mon Jul 19, 2010 2:36 pm
Bikes: 58FL 99M2Buell 89Sporty
Location: Sanford,mi.

swing arm pivot bolt

#1

Post by Billpan58 » Wed Jul 21, 2010 6:29 am

disasembled swing arm tonite,had alot of movement in rear wheel when on jack,now i'm wondering if the hole pivot bolt enters trough on right side has become enlarged over time[58 fl],when bolt is almost touching threads it [threaded end]will move up and down the width of the threads,i'm guessing there is a least 3to5 thousands on each side of pivot bolt once engaged in the threads. seems like that could translate into movement of the swing arm once assembled? hopefully hole won't have to be bored and bushed.starting to think i opened a can of worms,as my buddy w/shop said. any tips would be appreciated,hope to have back running for the weekend.



Bosheff
Posts: 1225
Joined: Fri Jul 03, 2009 8:23 pm
Bikes: 65 FLH 82 FLH
Location: Michigan

Re: swing arm pivot bolt

#2

Post by Bosheff » Wed Jul 21, 2010 5:07 pm

If yer sayin that with the pivot bolt installed, ya got a bunch of slack in the threaded side of the frame, then no this isn't right. Any amount of slop in the pivot bolt will be magnified/multiplied a bunch when swingarm and wheel are installed and the swingarm is loaded and put through its arch. The non threaded side of the pivot bolt should fit snug in the right side mounting lug. See if you can install the pivot bolt's threaded side first through the non threaded mount on the frame's right side. To do this you will have to start it out in between the mounting lugs on the frame. I'm not sure if this is possible, but if you can do this you can check the fitment of the pivot bolt in the frame without having the threaded end engaged. Also, how bout the bearings in the wheel hub? I've Heli-coiled a few frames in this area without a problem....bosheff

RussW
Posts: 170
Joined: Sun Apr 08, 2007 3:49 am
Bikes: 1961 FL
2007 Kaw. Vulcan 2000
Location: Western Mass

Re: swing arm pivot bolt

#3

Post by RussW » Wed Jul 21, 2010 5:18 pm

If it is slop in the threaded portion, V-Twin makes a .025 oversize self-taping swingarm bolt, part # 44-0082. Never used one, but might be worth a look.

Billpan58
Posts: 113
Joined: Mon Jul 19, 2010 2:36 pm
Bikes: 58FL 99M2Buell 89Sporty
Location: Sanford,mi.

Re: swing arm pivot bolt

#4

Post by Billpan58 » Thu Jul 22, 2010 1:45 am

slop is on right side[non threaded side] just put bolt in and tightened to probalaly about how it will be when installed no slop in threade end or any movement at entry end,i'll look through our knowledge base to see if there is mention of the inner dia. of the entry hole? if any one knows please post,thanks,bill picked up a good deal today new progessive 412 shocks for 200.00,i was happy been needing shocks for a long time. going to pan mach.Motor builder buddy tommorow to have new pivot bolt[thinking maybe stainless,plus stainless spacers, any one think of a reason not to use stainless? old stuff coroded despite grease] made.

Billpan58
Posts: 113
Joined: Mon Jul 19, 2010 2:36 pm
Bikes: 58FL 99M2Buell 89Sporty
Location: Sanford,mi.

Re: swing arm pivot bolt

#5

Post by Billpan58 » Thu Jul 22, 2010 2:21 pm

just found complete complete pivot bolt kit locally, hard to believe going after it ,maybe back whole today!

Billpan58
Posts: 113
Joined: Mon Jul 19, 2010 2:36 pm
Bikes: 58FL 99M2Buell 89Sporty
Location: Sanford,mi.

Re: swing arm pivot bolt Fixed

#6

Post by Billpan58 » Fri Jul 30, 2010 5:28 am

ended up putting a 5 thous. shim around pivot bolt to grt rid of slop in entry whole, test drove today all better,also put 90 zerk in and pumped swing arm full of grease.

Bosheff
Posts: 1225
Joined: Fri Jul 03, 2009 8:23 pm
Bikes: 65 FLH 82 FLH
Location: Michigan

Re: swing arm pivot bolt

#7

Post by Bosheff » Fri Jul 30, 2010 8:47 am

That swing arm holds a bunch of grease don't it....bosheff

Billpan58
Posts: 113
Joined: Mon Jul 19, 2010 2:36 pm
Bikes: 58FL 99M2Buell 89Sporty
Location: Sanford,mi.

Re: swing arm pivot bolt

#8

Post by Billpan58 » Mon Aug 02, 2010 12:42 am

hopefully it will stay in better shape being submerged in grease.

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