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Bilstein Collars Stuck - need advice

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Old 11-04-2012, 10:30 AM
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Landseer
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Default Bilstein Collars Stuck - need advice

Front of car was riding very high.
Adjusters frozen.
Removed shocks to address.
Soaked them for a few days with acetone/trans fluid, oil, WD

Not sure how they work, search was confusing. Help please.
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Old 11-04-2012, 10:38 AM
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Jadz928
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Die grinder, longways on the sleeve. Not all the way thru, but close. Then wedge in a tool and peel off the sleeve. May need two cuts.

I have a replacement(s) for you.
Old 11-04-2012, 10:52 AM
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Are the collars, then, single cast pieces that thread onto each shock?

Cut the whole thing? Ok.
Old 11-04-2012, 11:03 AM
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John Speake
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Yes and yes...
Old 11-04-2012, 12:41 PM
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Thanks for the advice.

Worked great.

One of the collars got two cuts and came apart in halves.

The other collar got a single cut and was unscrewed using a wedge to help hold it apart.

These should have wax melting into them when being reassembled.
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Old 11-04-2012, 12:54 PM
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Mrmerlin
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darn those are really corroded,
hopefully a wire brush on a wheel will clean those threads ,
when you go to install the new collars ,
I suggest to use a mixture of antiseize and grease, use some on the bottom of the spring perch as well ,
you will only be able to adjust these with the wheels off the ground.
Old 11-04-2012, 12:59 PM
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Thanks, will-do.

Jadz928 had these installed by a local shop 4 years ago.

Car hasn't seen much duty since. Shop must have forced some dirty old collars onto the new shocks. About par-for-the-course for DeltaV in Richmond.
Old 11-04-2012, 04:11 PM
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^^^^ yep! Don't use them anymore. Collars r yours, just let me know.
Old 11-04-2012, 04:14 PM
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Jim, please mail them asap, I'll put the short shifter in the mail on Monday.

Will be back onto this project next weekend and think I can finish.

Am blogging it on pelican.


The shock threads cleaned-up fine with power wire brush.
I used a triangular jeweler's file to clean-up a few of the threads.
Old 11-04-2012, 06:06 PM
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jpitman2
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My rears did that - had to cut them off. Local wrench had some 911 fittings with matching perches and gave them to me. FWIW bils are rebuildable - here they were ~$150/ea, compared to $600+ for new.
jp 83 Euro S AT 54k, M474
Old 11-05-2012, 12:43 AM
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The right tool helps. Using a pipe wrench just crushes the collar more tightly to the shock. What you need is called a c-spanner, a bar that has a 'c' shaped end with a hook on it to engage the slots in the collar. Any of the 'Big Three' will have one. Mine cost about $8.00
Old 11-05-2012, 01:00 AM
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Correct, good point.
I could feel the pipe wrench binding them further. Wrong tool for sure.
Did break one shock spanner.
Had a heavy plumbing spanner that didn't seem to work.
Might have been saveable with patience and right tool.

Last edited by Landseer; 11-05-2012 at 01:18 AM.
Old 11-05-2012, 03:33 PM
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jheis
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Too bad about the shocks - shame what some bonehead mechanics do to these cars. Nice vice though....

James



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