Just installed the new cam and when we started it up it ran and then broke a rocker, what could cause that?

 

possibly incorrect pushrod length or the cam was installed wrong...

 

Check your preload, make sure the cam is installed properly, rocker pedestal is installed, etc. all need to be looked over. Did it knock the needle bearings out or did it actually break the rocker? Did you check PTV before firing it up? What springs are you using? Let me know and I'll see if we can help determine the cause.

Jon

 

It actually broke the rocker, I'm using patriot xtreme springs. It ran for about 20 seconds then it broke.

 

Pushrod length is correct, can you be any more specific on what might have gone wrong so that I can fix it?

 

Oh and also is it possible that the rocker just couldn't handle the upgraded springs and pushrods?

 

Stock rockers are pretty stong, that should not of been the problem.

 

Well that sucks I wish it was that easy. I'm ordered yella terra 1.7 rockers and I'm going to double check everything and hope that solves the issue.

 

Never mind, just gonna build a new motor.

 

What made you decide this all of sudden?

 

Well I'm leaving for college Friday so the goal was to get the car done before then so I could drive it a couple times. Since that didn't happen and I won't be driving it for the next 8 months I figured why not just build a stroker motor.

 

Check for coil bind, that will break them fairly quick.

 

^^^^true story^^^^

 

were they adjusted right? could have gotten some ptv smackage if you adjusted them 180* out

 

why do ppl insist on adjusting rockers? u tighten them up till they seat, no matter where that lifter is on that cam lobe, it will tighten correctly. if its at the peak of the lobe, it will open the valve as u tighten.

 

wow...what kind of advice is that?