[MR2] MK1 Brake Caliper Rebuild Kit
arvidj at visi.com
Mon Sep 22 11:05:53 EDT 2008
Regretfully I know of two products that do not work.
http://www.ceramlub.com/ - It is probably as great a short term lubricant as
they claim but after
about a year it became very sticky which seemed to keep the caliper from
A black colored "teflon, graphite, synthetic" product from Sta-Lube -
which also seemed to get sticky after a while, it just took longer than the
fancy purple stuff.
One thing that I did discover is that you can overlube the front pins. The
front pins have three
flat spots gound on the side of the pins. I am assuming this is to allow air
to get in behind the
pin as it moves in and out of the hole. If you use too much grease the flat
spots fill up with
grease and then the pin becomes very difficult to move because the pin
becomes vacuum locked
in the hole.
The top pins exhibit this behavior and the bottom pins - with the rubber
friction enhancer on it -
really exhibits this behavior. The rubber piece and lots of grease make a
very air tight seal and
keeps the pin from moving freely in the hole.
Note that the rear caliper pin does not have the flat spots on it but does
not have the vacuum lock
problem because there is a very small hole drilled in the bottom of the
caliper pin hole in the caliper.
This hole has a rubber stopper over it but the hole does allow the back of
the pin hole to be vented
to the atmosphere allowing air in and out as the pin moves in and out.
So I await the answer from Marc of the correct product to use. Maybe it is
one of these two items.
----- Original Message -----
From: "Marc Medina" <marc at marcmedina.com>
To: "'Kurt Krueger'" <telek2 at att.net>; "'Arvid Jedlicka'" <arvidj at visi.com>;
<mr2-interest at mr2.com>
Sent: Sunday, September 21, 2008 12:50 PM
Subject: RE: [MR2] MK1 Brake Caliper Rebuild Kit
> No, a local guy found that Permatex DOES actually offer the stuff. I'll
> to ask him exactly what it's labeled as.
> -----Original Message-----
> From: mr2-bounces at mr2.com [mailto:mr2-bounces at mr2.com] On Behalf Of Kurt
> Sent: Sunday, September 21, 2008 10:45 AM
> To: Arvid Jedlicka; mr2-interest at mr2.com
> Subject: Re: [MR2] MK1 Brake Caliper Rebuild Kit
----- Original Message -----
From: "Kurt Krueger" <telek2 at att.net>
To: "Arvid Jedlicka" <arvidj at visi.com>; <mr2-interest at mr2.com>
Sent: Sunday, September 21, 2008 12:44 PM
Subject: Re: [MR2] MK1 Brake Caliper Rebuild Kit
> -------------- Original message ----------------------
> From: "Arvid Jedlicka" <arvidj at visi.com>
>> I have had the same issue several times on my '93 turbo daily driver. In
> case it was a piston that was frozen in the caliper and in the other
> instance it
>> the caliper frozen on the mounting pins.
> What lube did you use on the sticking mounting pins? I've been having
> trouble with sticking pins and some of the lubes I used actually made
> matters worse. Including some super-duper pin lube I got from NAPA.
> DON'T use NAPA pin lube on Toyotas.
> The lithium soap based glycol grease (I think I remembered it correctly)
> that the BGB keeps mentioning seems to be a phantom lube. Or maybe only
> available in Japan, or maybe a
> serious translation error.
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