[Shop-talk] Disc brake piston explosion

[eric at megageek.com]

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 at milleredp.com> 
Sent by: "Shop-talk" <shop-talk-bounces at autox.team.net>
01/25/2015 10:34 PM

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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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