Roller rockers failing.

[enkeivette]

Apparently God hates me, and my roller rockers.

I noticed today while I was cleaning my engine that the tips (not the fulcrum) of my roller rockers are failing, after only 15K miles! Gay.

This is why I'm an agnostic Sean, it seems to me that God must have seen that I've already spent over a grand in car parts over the last few weeks and he decided "Hey, let's watch him squirm!" :mad:

I guess on the plus side I can buy some 1.65 rockers now and up the valve lift. Should be good for another 20? hp.

[Vettezuki]

Apparently God hates me, and my roller rockers.

I noticed today while I was cleaning my engine that the tips (not the fulcrum) of my roller rockers are failing, after only 15K miles! Gay.

This is why I'm an agnostic Sean, it seems to me that God must have seen that I've already spent over a grand in car parts over the last few weeks and he decided "Hey, let's watch him squirm!" :mad:

I guess on the plus side I can buy some 1.65 rockers now and up the valve lift. Should be good for another 20? hp.


Kinda sounds like an oiling or geometry problem. Are you just firing the thing up and nailing it? You should treat it like a lady and you may not have such problems. :judge:

[enkeivette]

Not a geometry problem, the rocker pushrod geometry is perfect (because I set it up myself :D). Not an oiling problem, all of the pushrod holes were clean. The problem is the no-name rockers, if you look in my garage under engine specs you'll see that my rockers are the only no-name part on the engine. Bought them cheap from an E-Bay company. Looks like it cost me money in the long run.

[Vettezuki]

Not a geometry problem, the rocker pushrod geometry is perfect (because I set it up myself :D). Not an oiling problem, all of the pushrod holes were clean. The problem is the no-name rockers, if you look in my garage under engine specs you'll see that my rockers are the only no-name part on the engine. Bought them cheap from an E-Bay company. Looks like it cost me money in the long run.

Cheap stuff usually is more expensive. . .

[enkeivette]

I think my dual valve springs might be to blame for the excessive wear on the roller tips.

[BRUTAL64]

I think my dual valve springs might be to blame for the excessive wear on the roller tips.

What kind of damage to the roller tip?

[enkeivette]

The roller itself is fine, the damage is internal. Some of the rollers feel rough as in they don't spin freely. Feels like the bearings or whatever's in there has flat spots.

[BRUTAL64]

The roller itself is fine, the damage is internal. Some of the rollers feel rough as in they don't spin freely. Feels like the bearings or whatever's in there has flat spots.

Ok, now I understand. Well, at least the best "I" can.:rolleyes:

[enkeivette]

No it was my bad, I said damage to the roller tips, didn't specify.

Don't remember deleting that post above, what I said was... I figured out that with 1.65 rockers my lift would go from .520/ .540 to .576/ .594. :cool:

[BRUTAL64]

No it was my bad, I said damage to the roller tips, didn't specify.

Don't remember deleting that post above, what I said was... I figured out that with 1.65 rockers my lift would go from .520/ .540 to .576/ .594. :cool:

Make sure you check push rod clearence at the head and rocker clearence at the spring. ;)

[enkeivette]

Make sure you check push rod clearence at the head and rocker clearence at the spring. ;)

Yeah I might just go with the 1.6ers which will put me at .555/ .572 I called AFR about it this morning, and although the heads are made for up to .600 of lift, the tech said it would be wise to shim the valve springs for the 1.65 rockers. I'm a little too lazy for all of that.

[enkeivette]

I've decided to stick with my rockers. The consensus seems to be that the roller tips actually don't roll (which is proabably why they're wearing the way that they are) and are therefore not all that critical. The actual rollers themselves are in good shape so it will be fine.

[BRUTAL64]

I've decided to stick with my rockers. The consensus seems to be that the roller tips actually don't roll (which is proabably why they're wearing the way that they are) and are therefore not all that critical. The actual rollers themselves are in good shape so it will be fine.

I question this. My comp cams roller tips STILL roll after many years. There is something wrong here. Ok, think this--if the pin breaks that holds the roller tip, the roller tip will come out then the arm will come down on the retainer knocking the keepers out and dropping a valve. :barf:

I have seen this.

[enkeivette]

I question this. My comp cams roller tips STILL roll after many years. There is something wrong here. Ok, think this--if the pin breaks that holds the roller tip, the roller tip will come out then the arm will come down on the retainer knocking the keepers out and dropping a valve. :barf:

I have seen this.

Damn you! You single handedly managed to make me spend $250 with one post.

Ahhh! Guess I'll be saving money in the long run though.

[BRUTAL64]

Damn you! You single handedly managed to make me spend $250 with one post.

Ahhh! Guess I'll be saving money in the long run though.

Sorry man. But, I had to tell you what could/would happen. Just lookin out.:judge:

[enkeivette]

That's ok, I have some lifetime warranty 1.65 Harland Sharp rollers coming in the mail.

And I will now have .576 in, .594 ex lift :D Assuming my pushrods clear the heads and my valves clear the piston. When they get here I'll bust out the playdo and let yall know what's up. :thumbs_up: