Issue with rockers and Hydrulic lifters

[Casper302]

The exhaust valve on cylinder number 4 has given me some issues. Here is the issue and how I am setting the lash.

Ok so I adjust the lash and fire the car, runs good and idles smooth. Now after it warms up you hear a "Pop" and the rocker on the exhaust valve comes loose, car runs like shit and I shut it off. I adjust the lash this way, I open the intake valve fully then I tighten the exhaust valve until the push rod does not lift up or down then I spin the poly lock 1/4 turn. Then set the allen screw then adjust it one more 1/4 turn.

Lifter looks fine, dog bones look good also. Anyone else have this issue? It seems the more I adjust it the longer it hold before it pops.

 

[briansbadlx]

im guessing a lifter that wont hold prime.

 

[PAUL WILEY]

poly lock cracked?

 

[Casper302]

The lock retainer broke and it caused the pushrod to jump onto the lip of the lifter.

 

[82bird]

Adjust Intake when exhaust just start to open, Adjust Exhaust when Intake opens fully the njust starts to close.

Also preload that lifter more. I usually do 3/4 to 1 full turn

 

[Casper302]

Adjust Intake when exhaust just start to open, Adjust Exhaust when Intake opens fully the njust starts to close.

Also preload that lifter more. I usually do 3/4 to 1 full turn

I have never had an issue and this problem was because of the retainer clip broke. Its all good now.

 

[mustangmike6996]

Adjust Intake when exhaust just start to open, Adjust Exhaust when Intake opens fully the njust starts to close.

Also preload that lifter more. I usually do 3/4 to 1 full turn

good info.....


and im kind of surprised you didnt bend that pushrod man.

 

[Casper302]

good info.....


and im kind of surprised you didnt bend that pushrod man.

Just lucky I guess lol or the TFS pushrods are that strong.