[DeTomaso] BBORR engine failure clues

[michael frazier]

Sorry, I was wrong.  They're just standard, not roller lifters.  Pulled the very last one on the passenger side.  The face is clean

but there is a rough gouge on the edge.  Push rods on back two cylinders are barely bent.  You have to roll them on a pane of glass to tell.  Could have been that way for a while.  I'm  now leaning toward a broken cam.  Thoughts anyone?  Thanks.

Michael
 
> From: jtaphorn at kingwoodcable.com
> To: red3644 at hotmail.com; detomaso at realbig.com
> Subject: Re: [DeTomaso] BBORR engine failure clues
> Date: Wed, 29 Apr 2009 22:16:18 -0500
> 
> Michael
> 
> I believe that you stated you were running a solid roller lifter cam. The 
> excess lash occurs as the needle bearings in the roller's wheels turn to 
> dust. The base of the roller then rides on the cam lobe and the wear 
> rapidly against one another.
> 
> Welcome to solid roller hell from one who has made the journey.
> 
> JT
> ----- Original Message ----- 
> From: "michael frazier" <red3644 at hotmail.com>
> To: "pantera list" <detomaso at realbig.com>
> Sent: Wednesday, April 29, 2009 9:36 PM
> Subject: [DeTomaso] BBORR engine failure clues
> 
> 
> >
> > I had a chance to pull the distributor, intake and valve covers tonight. 
> > The dist. gear is pinned tight where it should be. The rockers
> >
> > (intake and exhaust) for the back two cylinders, 4 & 8, are loose and 
> > almost off the springs. Lifters are down. That's as far as I've 
> > got...any new thoughts? I'll keep you posted.
> >
> > Michael
> >
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