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Old 12-28-04, 03:20 PM   #1
Gadfly
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crank installation: what am i droing wrong?

Ok, i'm new to this.....

FSA Crankset (ISIS)
FSA bottom bracket (ISIS)

Bottom bracket is installed. Trying to install crankset. Spindles are greased, bolt and washer are greased.

As far as I can tell from reading the ISIS spec, ISIS splines aren't keyed.

Cranks don't just slide on. I assume this is what this whole press fit thing is about. I can bolt down one 99% of the way but the drive side crank still has 2mm or more of spindle showing (before the blocker) and more muscle isn't making the bolt go. I figure i must be doing something wrong. Should i be using a rubber mallet to bang the cranks on and then tighten it down? Barnett's shows use of the rubber mallet earlier in the process but not later. Zinn never mentions a mallet, nor does the FSA instructions.

regards,
Gadfly
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Old 12-28-04, 03:38 PM   #2
pnj
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why don't you go down to fsa and ask them.

say "hi" to carl for me.
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Old 12-28-04, 04:06 PM   #3
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Somethin's quite wrong. Isis is supposed to be a tight fit, not an impossible fit. You must have a burr or a defective spline or something of that nature. The maximum force you should have to put down, yes maximum is 45 ft-lbs.
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Old 12-28-04, 10:18 PM   #4
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LBS finished tightening it up for me. Better leverage, perhaps a longer hex wrench and clearly more experience with how much resistance to expect.
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Old 12-29-04, 12:58 AM   #5
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I would admit that is kind of odd. My new FSA Crank and BB fit perfectly. The crank slid right on about 3/4 of the way, and slowly pressed the rst of the way with the steel bolt provided. Is it the cromo BB? If it was the Ti version, I would have scared to strip the threads.
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Old 12-29-04, 08:17 AM   #6
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Quote:
Originally Posted by Gadfly
LBS finished tightening it up for me. Better leverage, perhaps a longer hex wrench and clearly more experience with how much resistance to expect.
Your problem was not enough torque.Hard to get with a hex wrench.SOME people SHOULD have a torque wrench.
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