I don't know what they were made of. Here is a photo of one of the
calipers with the failed pistons in it.
http://www.megageek.com/photo/photoa~1.nsf/a7ffeab012bbfb5b85256eb1007ca7f6/d1f76fb58c8f84f685257dd9003a7e29?OpenDocument
Eric P
"Be as beneficent as the sun or the sea, but if your rights as a rational
being are trenched on, die on the first inch of your territory." Ralph
Waldo Emerson
John Miller <jem@milleredp.com>
Sent by: "Shop-talk" <shop-talk-bounces@autox.team.net>
01/25/2015 10:34 PM
To
shop-talk@autox.team.net
cc
Subject
Re: [Shop-talk] Disc brake piston explosion
On 1/25/2015 7:34 PM, Tim . wrote:
> Any ideas what caused it?
>
> "F350 pick up."
>
> sorry. couldn't resist.
Are they steel pistons?
Ford tried phenolic-resin pistons in several applications a while back,
and they were notorious for coming apart in heavy use.
But it would surprise me a LOT if Ford went down that road in something
like an F350.
John.
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