If it is coming from the bottom of the engine, it is probably a rod. That means
at the least you will have to pull one piston and rod, have the rod resized, have
a new bearing installed and replace it. At the most it will need a crank grind,
new bearings, etc. You might as well rebuild the entire thing if you have to pull
the crank out.
If it is a tick, it could be a valve related problem, loose valve train and may
only need to have the valves relashed, etc. If it is a hard deep knock, it is
probably a rod.
Dave
>>>>>>>>>>>>>>>>
"Dean L. Kellogg, Jr" wrote:
> Dear learned listees,
>
> I am evalluating a vehicle with a Hercules JXD engine. The engine was
> "rebuilt" several years ago, but now has a "knock". Please help me out of
> my ignorance.
>
> 1) What are the possible sources of the "knock"?
>
> 2) How is the source of the "knock" best diagnosed?
>
> thanks
>
> *****************************************************************************
> Dean L. Kellogg, Jr., MD, PhD
> Department of Medicine
> The University of Texas Health Science Center at San Antonio
> 7703 Floyd Curl Drive
> San Antonio, Texas 78229-3900
> (210) 617-5311 FAX (210) 617-5312 e-mail:kelloggd@uthscsa.edu
> ******************************************************************************
> V
>
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This archive was generated by hypermail 2b29 : Sun Dec 03 2000 - 20:29:53 PST