DeTomaso Mailing List: December 2000, Message #174

From:	"Antenucci, Dennis" <antenuccid@samtrans.com>
Subject:	RE: Reason Pantera went Boom! Lesson here.
Date:	Tue, 5 Dec 2000 10:59:26 -0500

Charlie and all,
I quess my question is still WHY are these roller cam shear pins STILL
failing OR are they?.  Tell me again BEFORE I add a roller cam to the new
engine.
MD

 -----Original Message-----
> From:	Charlie Mccall [SMTP:Charlie.Mccall@haworth.com]
> Sent:	Monday, December 04, 2000 10:03 PM
> To:	Multiple recipients of list
> Subject:	Re: Reason Pantera went Boom! Lesson here.
> 
> If it makes you feel better, you are not alone. I came back from France to
> pick up my car 2 years ago from Collector's Choice and drive it to the
> port to put it on a boat. Long story very short, after $12,000 worth of
> engine rebuild and other mechanical stuff replaced, 500 miles later I was
> sitting alongside the road with an engine that wouldn't start. 
> 
> It was the shear pin as well. At least it wasn't serious, but I missed the
> boat, so to speak, and had to catch my plane. It took a couple months
> before I could get my car from where it had broken down to somewhere near
> a port. Maybe these things fail right away if they are going to fail? I
> had no slop in the timing chain, my engine had just had a complete
> rebuild. It just failed. 
> 
> Charlie McCall
> 1972 DeTomaso Pantera #3847 (for sale)
> 1985 DeTomaso Pantera GT5-S #9375
> "Raising Pantera Awareness across Europe"
> http://briefcase.yahoo.com/gt5s_1985
> 
> >>> <FlyinRider@aol.com> 12/04/00 08:50PM >>>
> 
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> To make the story short The roll pin on my BRAND new Mallory Unilite
> sheared. 
>  It had less than 200 miles on it and was only three months old.  At least
> I 
> know why it quit.  Has anyone ever just welded the gear to the shaft or
> would 
> that maybe soften up the metal in the gears ect too much?   The timing
> chain 
> was sloppy and it did backfire  which might have  sheared the pin but I
> would 
> think it would have been stronger than that.  
> 
> cheers  john  6377
> 
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> <HTML>To make the story short The
> roll pin on my BRAND new Mallory Unilite sheared. <BR> It had less
> than 200 miles on it and was only three months old.  At least I
> <BR>know why it quit.  Has anyone ever just welded the gear to the
> shaft or would <BR>that maybe soften up the metal in the gears ect too
> much?   The timing chain <BR>was sloppy and it did backfire
>  which might have  sheared the pin but I would <BR>think it
> would have been stronger than that.  
> <BR>
> <BR>cheers  john  6377
> 
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> 
>