mustang6147 (2/25/2014)
I also need a rocker arm adjuster. The number 5 cylinder exhaust is to loose for my comfort, I can almost turn it with my fingers...
ThanksI went through this about 10 months ago when I had my rockers reconditioned. I had to go through at least 2 dozen rockers to find 16 that were tight. Recently there was a discussion concerning the need to run a tap throuh the rocker if you plan to switch from the interference type to the lock nut type. I think Ted explained this but I can't find the post. Also I have read that the FE ovesize rocker screws will work in the Y rockers. Also some claim that after market screws (such as Crane) will work but John Mummert cautioned that the ball may not be exactly the right size. I suspect that they would have the same thread issue as the lock nut type. Finally, when I had my rockers machined the machinist had an old box of oversized interferance screws made by Pioneer I think. We measured the ball and found that they were compatible with the Y push rods (3/8" I think).
Some of the Y Block sppliers carry replcement screws but someone on this site found that they are not oversized.
Mark
1956 Mercury M100
1955 Ford Fairlane Club Sedan
Delta, British Columbia