Quick Campy square-taper install question..

[Clean39T]

This look right? The UN-70 I pulled out was longer, but I think that's just the taper requirements for the cranks being different? I'll be putting Record Compact Carbon 10 cranks on here. It's been a while since I've lived in square-taper land. Thanks!

https://uploads.tapatalk-cdn.com/20170418/38efdd95f3fd663c0c0fe13faf8f70e1.jpg

https://uploads.tapatalk-cdn.com/20170418/3998895bde4bee366548f85d0a669ca8.jpg

https://uploads.tapatalk-cdn.com/20170418/2010081b1eb0a3fc5984ed6a37ffd6f1.jpg




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[jtakeda]

You're good. Just make sure it's snug!

[Ronsonic]

And don't grease the tapers.

http://i178.photobucket.com/albums/w258/Ronsonic/dumpster/m-tapir_img01-l.jpg

[Clean39T]

And don't grease the tapers.

http://i178.photobucket.com/albums/w258/Ronsonic/dumpster/m-tapir_img01-l.jpg


[emoji23] 🤣[emoji23]


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[Clean39T]

You're good. Just make sure it's snug!


Cool. The old BB came out pretty easily given the age and there wasn't too much rust dust down in there...frame appears to have been well cared for...I was going to sell it, but read a lot of very positive reviews so I figured it was worth building it how I'd want to ride it and seeing if it's a keeper for me...


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[oldpotatoe]

This look right? The UN-70 I pulled out was longer, but I think that's just the taper requirements for the cranks being different? I'll be putting Record Compact Carbon 10 cranks on here. It's been a while since I've lived in square-taper land. Thanks!

https://uploads.tapatalk-cdn.com/20170418/38efdd95f3fd663c0c0fe13faf8f70e1.jpg

https://uploads.tapatalk-cdn.com/20170418/3998895bde4bee366548f85d0a669ca8.jpg

https://uploads.tapatalk-cdn.com/20170418/2010081b1eb0a3fc5984ed6a37ffd6f1.jpg

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Yup, looks OK, only 102mm spindle. Grease inside cups(tap RH one off), before install? DRY spindle and about 30 ft pounds of torque..grease on crank bit threads and around crank bolt washer.

[ultraman6970]

Why no grease in the tappers???

[R3awak3n]

Why no grease in the tappers???

oh boy here we go :D

[oldpotatoe]

Why no grease in the tappers???

Cuz that's what Tullio wanted..:D

[ultraman6970]

Just asking because in my country we always put grease on them to avoid the hateful creaks...

[FlashUNC]

Trade creaks for cracked spiders. Seems like not the best answer to the problem.

[sales guy]

Oddly, someone has not mentioned the elephant. If there was a UN70 in there, and you used it on the campy crank, the taper in the arms are now set for a sHimano taper.

Did you put a campy crank on the shimano bb?

[tuscanyswe]

Oddly, someone has not mentioned the elephant. If there was a UN70 in there, and you used it on the campy crank, the taper in the arms are now set for a sHimano taper.

Did you put a campy crank on the shimano bb?

Because the pic shows the installed bb as campy ? :)

[sales guy]

Because the pic shows the installed bb as campy ? :)


Yes, it shows a campy. But he says he pulled out a UN70. Which is a Shimano bb. Hence my question.

[Clean39T]

Yes, it shows a campy. But he says he pulled out a UN70. Which is a Shimano bb. Hence my question.


The UN70 had Shimano 600 cranks married up to it..


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[Ronsonic]

Just asking because in my country we always put grease on them to avoid the hateful creaks...

I've never greased and never had them creak on me.

[verbs4us]

Recently had Steve Bilenky install new square tapers in my old steel steed and as a throw-away comment, while he was working, he said: "Never grease or lube the tapers." The idea is that if you do, the crank, which is softer, will continue to move inward (unless you are disciplined with a torque wrench) and be overtightened. Like others said, spider can crack, chainline might be off. No concern for freezing the alloy to the spindle. Just go dry and clean. What Steve says, I do. He's forgotten more than most of us will ever know.

[Don49]

Phil recommends grease so I did on a ti BB install:

"We recommend that a light film of grease be applied to the taper. This is only a recommendation for Phil Wood bottom brackets, as our taper was designed with grease in mind."

[thwart]

I've never greased and never had them creak on me.

+100. Creaks may be from your pedals (or a BB not torqued appropriately), but not from the taper/crank interface.

Phil recommends grease so I did on a ti BB install:

"We recommend that a light film of grease be applied to the taper. This is only a recommendation for Phil Wood bottom brackets, as our taper was designed with grease in mind."

Could this be because titanium, rather than steel?

[Black Dog]

Phil recommends grease so I did on a ti BB install:

"We recommend that a light film of grease be applied to the taper. This is only a recommendation for Phil Wood bottom brackets, as our taper was designed with grease in mind."

Their torque values are set with grease in mind (lower value to compensate for reduced friction). The design of the taper; that is standard for the type of crank (ISO vs JIS).

[drewellison]

Okay, I'm sure no one here has ever greased Campy tapered axles, but let's assume that maybe I have a friend who has done this. :eek:

I just checked with "my friend" and he says he doesn't use gorilla-torque on the bolts and has never had any creaking or splitting of the crank arms or any issues whatsoever for all the years he's run Campy square tapers.

So do I tell him that he should remove his crank arms, dry 'em off and reinstall them?

Or should I tell him to leave well enough alone?

:help:

[Ronsonic]

Okay, I'm sure no one here has ever greased Campy tapered axles, but let's assume that maybe I have a friend who has done this. :eek:

I just checked with "my friend" and he says he doesn't use gorilla-torque on the bolts and has never had any creaking or splitting of the crank arms or any issues whatsoever for all the years he's run Campy square tapers.

So do I tell him that he should remove his crank arms, dry 'em off and reinstall them?

Or should I tell him to leave well enough alone?

:help:

IMO, the last thing. If it runs good, it is good. I'd save the dry reinstall for the next bottom bracket job.

[oldpotatoe]

Okay, I'm sure no one here has ever greased Campy tapered axles, but let's assume that maybe I have a friend who has done this. :eek:

I just checked with "my friend" and he says he doesn't use gorilla-torque on the bolts and has never had any creaking or splitting of the crank arms or any issues whatsoever for all the years he's run Campy square tapers.

So do I tell him that he should remove his crank arms, dry 'em off and reinstall them?

Or should I tell him to leave well enough alone?

:help:

Leave it alone. Even with dry spindles, it's not a good idea to put on/take off/put on unless ya gotta. Each install moves the crank on a wee, wee bit further, but next time, dry spindle, 26-28 ft-lbs.

[Ralph]

Doesn't Phil Wood make a BB for these cranks slightly longer than 102....like 104 or 105 MM? For the above reason....on and off wear.

[Don49]

Each install moves the crank on a wee, wee bit further, but next time, dry spindle, 26-28 ft-lbs.Is it also advisable to not retorque the crank bolts periodically? I've heard that each retorque will move the crank on a bit more.

[spinarelli]

They make spindles for any length you wish. If you find your crank taper to be reduced to the point that it affects your chainline you can try a longer spindle.
The downside is that you don't know how much weaker the crank is or if it's going to fail on you while riding.

Doesn't Phil Wood make a BB for these cranks slightly longer than 102....like 104 or 105 MM? For the above reason....on and off wear.

[jruhlen1980]

I'm still stuck on all the talk about spiders and elephants and tapirs.

Anyone have a cap I can borra... capybara... nevermind I'll show myself out.