I'm just wondering about the necessity of the counterweight behind the fuel pump eccentric. The Eickman book seems to suggest that the counterweight was used in early Y-Blocks, but dropped in later years(?). Since this is a  C2AE block with a Rollmaster timing chain, should I use it or not? I can't see how it could hurt anything by having it in there.

Thanks,

Rono

  Ron Lane,  Meridian, ID

I would think it aids in camshaft balancing issues.

If you dont use it-send it my way.

Lets see what the experts have to say.

Oldmics

Ron, I leave it in, otherwise you will have to find a spacer of equal thickness, would you not?? Just my 1¢.



But I'm not an expert...

"The Master Cylinder"

Enjoying life at the beach in SOCAL

Rono.  If you have the fuel pump counterbalance plate, then by all means use it in conjunction with the fuel pump concentric.  I’ve checked the balance of the camshafts with and without that particular plate, and it does remove a significant amount of imbalance in the cam timing area simply by using it.  It was discontinued during 1956 as one of many cost cutting measures on the Y’s  but was brought back for a short period of time on the High Performance 289’s.

Lorena, Texas (South of Waco)

Thanks Ted and everyone else...the "Aye's" have it. I'll keep the counterbalance plate.

Rono

  Ron Lane,  Meridian, ID