727 concentricity

[70rrclone]

I have everything set up and check the concetricity of the front pump bore to crank centerline. Starting at the 12 o'clock position the needle swings to .009 then as it comes around it goes .015 in the opposite direction. It seems to me that the total runout would be .006. But after reading the monroe book. Im questioning whether it would be .006 or .024.

Is the .006 correct?

Thanks
Shane

 

[R/T Boy 67]

In your case zero is not at the 12:00 position. Set it to zero at either the 15 thou or the 9 thou position, and your TIR will be .024".

 

[493 Mike]

RobbMcPerformance Bellhousing Alignment Dowels
Mike

 

[70rrclone]

Ugh! Thats what I was afraid of. But that would probably explain some unusual wear i see on the torque converter.

 

[dvw]

If the indicator shows +.015" in one direction and -.009" in the other. that is .024" total runout.
Doug