[DeTomaso] Crane Link Bar Lifter Failure - Pictures

Mike Thomas mbefthomas at comcast.net
Sun Jun 13 20:42:03 EDT 2010


On the peened vs. not: pretty obvious.  This looks like something that ought
to be forwarded to Hot Rod magazine or similar.

Mike Thomas 

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Orville
Sent: Sunday, June 13, 2010 3:03 PM
To: 'Daniel C Jones'; detomaso at realbig.com
Cc: MikeLDrew at aol.com
Subject: Re: [DeTomaso] Crane Link Bar Lifter Failure - Pictures

We just arrived back in Houston. Here are the pictures as I observed the
lifter valley and detailed examples of individual lifter assemblies.

http://www.pixclix.com/Burg/Pantera/Valley.jpg Lifter Valley. Note "missing"
link bars.

http://www.pixclix.com/Burg/Pantera/Lifters-Buttons.jpg Lifters and
"buttons" removed.

http://www.pixclix.com/Burg/Pantera/Lifter_damage.jpg Lifter Roller Damage
after 2 dyno pulls.

http://www.pixclix.com/Burg/Pantera/NoPeening.jpg Lifter with No Peening

http://www.pixclix.com/Burg/Pantera/Peen-NoPeen-1.jpg Comparison of "Peened"
versus "Not Peened" link bar buttons.

http://www.pixclix.com/Burg/Pantera/Peen-NoPeen-2.jpg Comparison of "Peened"
versus "Not Peened" link bar buttons.

 

Orville

 

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Daniel C Jones
Sent: Saturday, June 12, 2010 10:21 AM
To: Pantera REALBIG forum
Cc: MikeLDrew at aol.com
Subject: [DeTomaso] Crane Link Bar Lifter Failure

 

Just a word of warning.  We were just dyno testing a set of the Crane/FRPP

hydraulic roller link bar lifters on the dyno and several of them came
apart.

We caught it while swapping out the intake for a test but a couple of the

cam lobes were damaged in the process (custom Bullet hydraulic roller).  We

pulled out a pair from the dyno mule 351C and it's apparent what the problem

is.  The pins were not swedged properly and the pins backed out.  On the
good

ones, the button diameter is 0.287" while the unpeened set measure 0.195".

My guess is these were some of the last ones made by Crane before going out

of business and were never finish machined.

 

Dan Jones

_______________________________________________

 

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