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Finally shifted the seized seat post.



 
 
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  #1  
Old October 8th 17, 08:56 PM posted to rec.bicycles.tech
Ian Field
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Posts: 201
Default Finally shifted the seized seat post.

had to replace the saddle, so I put a few dabs of flour-emery powder on the
seat clamp. There was enough grip that I could get hold of the saddle and
twist the post out.

Now re assembled with copper slip anti seize compound.

Ads
  #2  
Old October 9th 17, 07:37 PM posted to rec.bicycles.tech
Doug Landau
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Posts: 1,282
Default Finally shifted the seized seat post.

On Sunday, October 8, 2017 at 12:56:21 PM UTC-7, Ian Field wrote:
had to replace the saddle, so I put a few dabs of flour-emery powder on the
seat clamp. There was enough grip that I could get hold of the saddle and
twist the post out.

Now re assembled with copper slip anti seize compound.


Nice! But copper?
  #3  
Old October 9th 17, 09:08 PM posted to rec.bicycles.tech
AMuzi
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Posts: 8,936
Default Finally shifted the seized seat post.

On 10/9/2017 1:37 PM, Doug Landau wrote:
On Sunday, October 8, 2017 at 12:56:21 PM UTC-7, Ian Field wrote:
had to replace the saddle, so I put a few dabs of flour-emery powder on the
seat clamp. There was enough grip that I could get hold of the saddle and
twist the post out.

Now re assembled with copper slip anti seize compound.


Nice! But copper?


For a seat post, molybdenum base or copper base paste are fine.
The high temp aspect of copper is irrelevant but if that's
the can he has then that's the can he should use.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


  #4  
Old October 9th 17, 09:35 PM posted to rec.bicycles.tech
Doug Landau
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Posts: 1,282
Default Finally shifted the seized seat post.

On Monday, October 9, 2017 at 1:08:14 PM UTC-7, AMuzi wrote:
On 10/9/2017 1:37 PM, Doug Landau wrote:
On Sunday, October 8, 2017 at 12:56:21 PM UTC-7, Ian Field wrote:
had to replace the saddle, so I put a few dabs of flour-emery powder on the
seat clamp. There was enough grip that I could get hold of the saddle and
twist the post out.

Now re assembled with copper slip anti seize compound.


Nice! But copper?


For a seat post, molybdenum base or copper base paste are fine.
The high temp aspect of copper is irrelevant but if that's
the can he has then that's the can he should use.


It should be aluminum, to give up aluminum to the iron-aluminum reaction.
  #5  
Old October 10th 17, 02:32 AM posted to rec.bicycles.tech
[email protected]
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Posts: 6,116
Default Finally shifted the seized seat post.

Aluminum anti seize with Ddef linseed

Copper is produced for hi temps

There's a difference

AL with linseed is low temp/ longevity

Can you see the copper ?
  #6  
Old October 10th 17, 02:36 AM posted to rec.bicycles.tech
[email protected]
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Posts: 6,116
Default Finally shifted the seized seat post.

Good alt example...wheel. bearing grease

Auto (copper) bearing grease is higher temp faster Revis than bicycle bearings n does not spread on or before bearings as well as designed for bike grease

As said...you can see the difference

As with copper/Al
  #7  
Old October 10th 17, 05:52 PM posted to rec.bicycles.tech
Doug Landau
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Posts: 1,282
Default Finally shifted the seized seat post.

On Monday, October 9, 2017 at 6:32:33 PM UTC-7, wrote:
Aluminum anti seize with Ddef linseed

Copper is produced for hi temps

There's a difference

AL with linseed is low temp/ longevity

Can you see the copper ?


I can see the cop
  #8  
Old October 10th 17, 07:21 PM posted to rec.bicycles.tech
Ian Field
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Posts: 201
Default Finally shifted the seized seat post.



"Doug Landau" wrote in message
...
On Sunday, October 8, 2017 at 12:56:21 PM UTC-7, Ian Field wrote:
had to replace the saddle, so I put a few dabs of flour-emery powder on
the
seat clamp. There was enough grip that I could get hold of the saddle and
twist the post out.

Now re assembled with copper slip anti seize compound.


Nice! But copper?


Copper based anti-seize paste is what they have on the shelves round here. I
have a tub of something based on a silvery colour metal, but I generally buy
more Copperslip when it gets used up.

molybdenum is a "friction modifier" - I had to do the clamp bolt up
seriously tight with just the copper stuff on it.

  #9  
Old October 10th 17, 07:37 PM posted to rec.bicycles.tech
Doug Landau
external usenet poster
 
Posts: 1,282
Default Finally shifted the seized seat post.


had to replace the saddle, so I put a few dabs of flour-emery powder on
the
seat clamp. There was enough grip that I could get hold of the saddle and
twist the post out.

Now re assembled with copper slip anti seize compound.


Nice! But copper?


Copper based anti-seize paste is what they have on the shelves round here.. I
have a tub of something based on a silvery colour metal, but I generally buy
more Copperslip when it gets used up.

molybdenum is a "friction modifier" - I had to do the clamp bolt up
seriously tight with just the copper stuff on it.


This reply does not address the validity - or lack thereof - of the alleged theory of operation of anti-sieze compounds, which says that the metal used therein should match the metal which is having a corrosion problem, so as to be taken up by the reaction and thus spare or partially spare the coated part.
  #10  
Old October 10th 17, 09:56 PM posted to rec.bicycles.tech
Ian Field
external usenet poster
 
Posts: 201
Default Finally shifted the seized seat post.



"Doug Landau" wrote in message
...

had to replace the saddle, so I put a few dabs of flour-emery powder
on
the
seat clamp. There was enough grip that I could get hold of the saddle
and
twist the post out.

Now re assembled with copper slip anti seize compound.

Nice! But copper?


Copper based anti-seize paste is what they have on the shelves round
here. I
have a tub of something based on a silvery colour metal, but I generally
buy
more Copperslip when it gets used up.

molybdenum is a "friction modifier" - I had to do the clamp bolt up
seriously tight with just the copper stuff on it.


This reply does not address the validity - or lack thereof - of the
alleged theory of operation of anti-sieze compounds, which says that the
metal used therein should match the metal which is having a corrosion
problem, so as to be taken up by the reaction and thus spare or partially
spare the coated part.


Translation please...................

 




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