[DeTomaso] lifter noise

John Bentley gndplne at yahoo.com
Thu Nov 25 15:00:31 EST 2010


Boyd,

A lot depends on what type of hardware you have in your engine. Stock rockers, aftermarket adjustable, etc

I think the advice already given is great.  Just take off the rocker cover and see if you can located the loose rocker.  You may have to rotate the engine to get the loose one off the high spot of the cam, so it could take a couple times of rotating to locate it.  If you can't find it that way, go ahead and start it and let it idle.  You'll find it then, but it will make a little oil mess.

You could have a bad or loose rocker, a bend push rod, a collapsed lifter, or a bad cam.  You'll have to do a little digging and let us know what you find.

Good luck,

John


--- On Wed, 11/24/10, boyd casey <boyd411 at gmail.com> wrote:

From: boyd casey <boyd411 at gmail.com>
Subject: [DeTomaso] lifter noise
To: "De Tomaso List" <detomaso at realbig.com>
Date: Wednesday, November 24, 2010, 9:19 PM

My motor ( 351 Cleveland)  has developed a very noticable tapping or clatter
coming from right side valve cover. . How can I diagnose the actual problem
and then fix it?
Thanks,
Boy
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