[DeTomaso] BBORR engine failure clues

[pantdino at aol.com]

To admit my ignorance:
Seems like these roller cam followers are a frequent source of engine 
failure.
Is it really worth it?   Do you really gain that many HP?

Jim



-----Original Message-----
From: John Taphorn <jtaphorn at kingwoodcable.com>
To: michael frazier <red3644 at hotmail.com>; pantera list 
<detomaso at realbig.com>
Sent: Wed, 29 Apr 2009 8:16 pm
Subject: Re: [DeTomaso] BBORR engine failure clues










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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