Help to ID these roller rockers and problem...

[Sieg]

Originally Posted by rwhite692

The worn recess is about .030 deep.

So the "good" ones are .030 thicker? I was wondering if everything started out equal? I'm no expert, but i do enjoy troubleshooting and I have stayed at Holiday Inn Express once or twice.

[rwhite692]

Thanks to all for your responses. After I verify that there are no other problems, I am going to install a set of comp pro magnums, and be done with it. I have never been a big fan of aluminum rockers, anyway.

[ccracin]

Originally Posted by rwhite692

I am going to install a set of comp pro magnums, and be done with it. I have never been a big fan of aluminum rockers, anyway.

Great Decision!

[Sieg]

Originally Posted by ccracin

Great Decision!

+1

[Bad Bowtie]

Couple of things come to mind on the 4 questionable rockers. Due to unknown rocker mfg (more than likely china) could it be possible that when they assemble the rockers they are picking from hundreds of trunnions that might not be designed/machined the same. It seems to me that i have seen rockers before with this same recess. Also if it was "eating away" that .030 wouldn't that metal have taken out the trunnion bearing or at least made it harder to pivot on. This is interesting. Better off with Comp rockers anyway.
Let us know if you come up with anything new
BB

[camcojb]

Originally Posted by Bad Bowtie

Couple of things come to mind on the 4 questionable rockers. Due to unknown rocker mfg (more than likely china) could it be possible that when they assemble the rockers they are picking from hundreds of trunnions that might not be designed/machined the same. It seems to me that i have seen rockers before with this same recess. Also if it was "eating away" that .030 wouldn't that metal have taken out the trunnion bearing or at least made it harder to pivot on. This is interesting. Better off with Comp rockers anyway.
Let us know if you come up with anything new
BB

I agree. Some trunnions have the recess machined and some don't, and those with the recess look too uniform to have been chewed up that way. They look like they were made with the recess and it's sort of a mixed set of rockers.

Jody

[SDMAN]

Originally Posted by rwhite692

Thanks to all for your responses. After I verify that there are no other problems, I am going to install a set of comp pro magnums, and be done with it.*** I have never been a big fan of aluminum rockers, anyway.***

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There are aluminum rockers.......and then there are aluminum rockers. Its foolish to judge the good ones based on a bad experience with the crappy ones.

[rwhite692]

Originally Posted by SDMAN

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There are aluminum rockers.......and then there are aluminum rockers. Its foolish to judge the good ones based on a bad experience with the crappy ones.

Those are some very nice shaft mounts. I have used probably 25 sets of aluminum (stud mounted) rockers over the years, and all I said, was that I was never a big fan of them.....over the years have had a couple (good ones, Comp and Crane) distort and a couple with needle bearing failures...have also used a bunch of sets of the Comp magnums....never had a failure...thefore liked those more....

Gee whiz....

[ccracin]

Originally Posted by rwhite692

Those are some very nice shaft mounts. I have used probably 25 sets of aluminum (stud mounted) rockers over the years, and all I said, was that I was never a big fan of them.....over the years have had a couple (good ones, Comp and Crane) distort and a couple with needle bearing failures...have also used a bunch of sets of the Comp magnums....never had a failure...thefore liked those more....

Gee whiz....

I'm with you. We tried several mfg's aluminum rockers in our circle track cars over the years. All the aluminum ones had issues. Comp, Crane, Harland Sharp.... The Comp Stainless ones.....not one issue! Just personal experience talking.

Now get that thing running again!