[Shotimes] Rod Bearings/Scratch Head

[Kevin & Cheryl Airth]

Mike:
 No clearances were checked on this engine? Plastic gauge is pretty cheap
and will give a reasonable indication of the clearance if you don't have the
micrometers.
.
.



> Here is one I haven't heard of before...sorry for the long story:
>
> On my Supercharged Car the tuning took a dump on me and I backfired
through
> the motor  which hair-line cracked two pistons (5 & 6.)
>
> I replaced the pistons with two from a parts motor.   Present rodbearings
> looked good and installed/torqued them to spec.   Buttoned her all up.
>
> Fired her up and got a rod bearing knock (insert cuss words.)
>
> I eased her 10 miles over to Texan Tony's house.    Pulled the two rod
> bearings out and they were almost melted/very coppered.   Luckily the
crank
> was not scored.  Pulled no. 2 bearing out and it was fine.
>
> Tony put in brand new rod bearings on the pistons/assembly lubed etc.
> Buttoned her up to spec and same rod bearing knock again.
>
> ?????????????????????????????
>
> Thanks mucho,
> Murph
> _______________________________________________