don't forget that some JXD'S have shimmed bearings, or so i've been told.
switch to a JXLD if you have a choice. that's what is going into my M8.
DaveCole wrote:
> 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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