Camshaft Fuel Pump Components


http://forums.y-blocksforever.com/Topic74557.aspx 		Print Topic | Close Window

By Rono - 13 Years Ago
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.BigGrin

Thanks,

Rono

By Oldmics - 13 Years Ago
I would think it aids in camshaft balancing issues.

If you dont use it-send it my way. BigGrin

Lets see what the experts have to say.

Oldmics

By The Master Cylinder - 13 Years Ago
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...
By Ted - 13 Years Ago
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.
By Rono - 13 Years Ago
Thanks Ted and everyone else...the "Aye's" have it. I'll keep the counterbalance plate.Tongue

Rono