fuzchunk

just got a new MSD optispark and the shaft has .006 play in it from side to side this seems excesive to me I was looking for under .002 my low milage 10k delco unit has .008 does any one know the low/high limit for these bearings? i checked from the dynamic seal surface with a dial indicator rocking the end of the shaft the slop is obvious even by hand the thrust {in out } seems ok. Ive been googlin and e-mailed MSD here are the specs I found if it helps any1 else

Camshaft End Play: .004”-.012”
Camshaft Gear Thickness: .235” MAX.
Camshaft Gear Mounting Bolt Head Installed Height: .200” MAX.
Camshaft Pilot Hole Depth: .360” MIN.
Camshaft Pilot Hole I.D. : MIN. .515”/ MAX .525”
Installed Stacked Pilot Hole Depth Total (as measured w/cam gear installed on cam): .590” MIN.
Camshaft Gear Pilot Hole I.D. : MIN. .515”/ MAX. .540”
Camshaft Mounting Bolt O.D. (as measured from hex corner to hex corner): .560” MAX.
Drive Dowel Height (as measured from camshaft nose face): .605” MAX.
Drive Dowel Height (as measured w/ camshaft gear installed): .375” MAX.
Drive Dowel O.D.: .250” MAX.

Fixxer99TA

iTrader: (5)

Its within spec, I dont see the problem?

fuzchunk

i did not have a spec for the opti bearing it was not on the list .006 seems too sloppy