First off, don't drive it anymore until you can confirm what the actual
problem is. IF it is a rod as you suspect, continued use could result in
a rod being thrown through the block, ruining any cost recovery by way
of saving a core charge. Blocks with holes in them and rods sticking out
are useless for most anything except big boat anchors.

You might try pulling one plug wire at a time. The cylinder with a bad
rod will change sound. Probably stop knocking altogether.

Contact Bob Donalds at Boston engine. He's a good guy and will be glad
to tell you how to solidly identify this problem.

John Rodgers
88 GL Driver
Birmingham, AL

raul lince wrote:

> Hello there,  I seem to have developed a knocking in my engine.  At first
> start up you dont hear it but as the engine warms up gets louder.
> Right now
> it seems to be at the front of engine towards torque converter.  We
> used a
> staff to our ears touching the case to confirm this.  I guess its rebuilt
> engine time.  Is boston bobs the best for the money im sceeming to get a
> stock rebuilt 2.1 after about 12 months(gotta donate a lot of plasma over
> the next year).  How long does someone venture to guess can it be driven
> before its too far gone?  Any help out there....
> Raul
> '89 GL Money pit
>
>
>
>
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