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Swinging arm pins

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hendy View Drop Down
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    Posted: 29 Mar 2018 at 18:11
Hi all
750 V7 Loop.
I'm now re-fitting the rear suspension for the first time.
Are there any criteria for the adjustment of the threaded pins?  The manual says tighten until the swingarm is still able to move, then lock.  That seems a bit too simple to me.  Are there any issues with possibly side-loading the bearings, or mis-aligning the whole swingarm?
Thanks
Roy

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jpc View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jpc Quote  Post ReplyReply Direct Link To This Post Posted: 29 Mar 2018 at 19:34
It actually is that simple.

Tighten until you feel the slightest resistance in swingarm mouvement, then unscrew one of the pins 1/8th of a turn, and that should eliminate all resistance. Then lock. Much like head bearings.

Swingarm is centered if the same number of threads are showing left & right, or use a caliper.
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hendy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote hendy Quote  Post ReplyReply Direct Link To This Post Posted: 29 Mar 2018 at 20:00
OK. Useful advice.  And thinking about it, the universal joint should more or less set the position laterally, so it would surely pay to let the spindle take its own position and screw up each pin until resistance is felt?
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jpc View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jpc Quote  Post ReplyReply Direct Link To This Post Posted: 29 Mar 2018 at 21:01
I never had to deal with bent frames, and don't see that the centerline could be disturbed at that particular point of the frame, even is something is out of true elsewhere.
The pins sticking out equally on both sides insure that the UJ is aligned with the gearbox shaft IMO.

I have less experience with loops than Tontis, it'd be nice if someone can confirm this.



Edited by jpc - 29 Mar 2018 at 21:16
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 30 Mar 2018 at 09:48
Confirmed!

TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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hendy View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote hendy Quote  Post ReplyReply Direct Link To This Post Posted: 30 Mar 2018 at 09:53
Thanks guys.  I'll check them with the vernier.
Cheers
Roy
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Ken-Guzzibear View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken-Guzzibear Quote  Post ReplyReply Direct Link To This Post Posted: 30 Mar 2018 at 18:54
the threads are so fine turn them in count the revs make sure they are the same both sides old school easy Guzzi are rather clever in many cases
The Older i Get, The Better I Was
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cyclobutch Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 2018 at 08:57
I use the thread count method - but I don't see too good. I pull the end of a steel rule across the pin and count the 'clicks'.
Butch
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