Yep. Did that first. But honestly, the bleeders were so buggered up I was
afraid they'd crumble.
Now that I've had a while to think things over, I think I'll remove the
calipers and try to drill the bleeder out. If I drill it with a bit about
75% of the OD of the bleeder it'll probably loosen the screw enough so it;ll
back out manually. I've been able in the past to drive a Phillips
screwdriver into the remnants of the screw and turn it slowly back out.
Then, if I damage the threads so I cannot use the bleed screw reliably, I'll
order a new caliper. My wife can drive her pickup or the 240D to work if
need be.
re about hitting a frozen fastner with a hammer - it is hope that will break
the bond between the threads on the fastener & those on the base material.
As I mentioned above, the bleed screws are pretty badly damaged - not only
were they tightened with (I think) pliers or Vise Grips. they appear to have
over 100ft #'s of torque on them! I even tried using a flat chisel to try
to get the screw to break loose and turn a "little". No way. Didn't budge
a bit - all I did was damage it more. I'll wait until I feel like removing
the caliper - which looks to ba *another frigging* challenge. the rubber
hose connection at the chassis looks to have damaged fasteners also. I'm
hoping they'll break loose easier than the bleeders - I already have new
hoses - and I know I need to replace the metal tubing at the rear - not
crazy about fabbing new lines for the front also but I may have to.
When I'm done all 4 brakes - and the whole brake system - will be like new -
not going to put up with this crap. Fortunately, I have a garage to work
in. ;-)
Thanks for all the comments - very helpful. It's great to have access to so
many experienced people who have come up with so ways to fix things when
they only had themselves to depend on.
Larry T (67 MGB, 74 911, 78 240D, 91 300D)
www.youroil.net for Oil Analysis and Weber Parts
Test Results http://members.rennlist.com/oil
PORSCHE POSTERS! youroil.net
Weber Carb Info http://members.rennlist.com/webercarbs
Porsche Road Test http://members.rennlist.com/roadtest/
.
----- Original Message -----
From: "Mitch Haley" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Sent: Sunday, January 07, 2007 1:49 PM
Subject: Re: [MBZ] Brake Calipers
LarryT wrote:
I tried to unscrew them - got a wrench on them and tapped it with a very
small hammer - slowly. Sure enough, just when I thought they had broken
loose then broke where they enter the caliper. #!!#$%## Says I.
You did hammer on them (like pounding in nails) to knock them loose
before you tried to turn them, didn't you?
Mitch.
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