Out of curiosity Vlad, how many have you seen like this? Can you be 100% certain it was mechanical failure due to a faulty component or possibly a poorly fitted one where the person didn't lube the parts before assembly?vlad01 wrote:No this issue occurs with brand new push rods from crow cams. all rockers were chewed out but the push rods weren't even worn in, so that means the reworked rockers are too soft and just get mooshed like play dough from the hard push rods. I was able to dig at the rocker seats with a stanley knife to try trim off the burs.immortality wrote:vlad01 wrote:no where near 1k
http://store.yellaterra.com.au/holden-b ... ef-yt6649/
The reworked factory rockers are rubbish. They are welded and re-drilled and loose there case hardening at the rod seat and the rod crews the shit out of the rocker in no time.
I actually think it's the other way around TBH. Used push rods with re-manufactured rockers = fail unless the push rod tips are in perfect condition. Fairly much every ecotec I've seen has had some sort of wear on the push rod where it sits on the rocker and I believe this is because of the roller lifters which means the push rods don't spin. Our Calais was the same and was starting to get a slightly noisy valve train which on the ecotec has always been blamed on the lifters but I believe is in fact wear on the push rods causing the lifters to loose there pre-load. I fitted new rockers and push rods and she's quiet as now.
I have a set of worn 1.9 rockers here, push rod cup in the rocker has some wear but the push rods themselves are totally stuffed. I was going to try and clean up the rocker seats but the fuckers are still hard as fuck.
The reason I ask is that over a few years I sold many a set of these types rockers and saw very few failures. I know there was a batch of bad rockers which if memory serves was due to a change in the manufacturing process but that was rectified fairly swiftly when the error was found. In those years I very rarely had customers complaining of issues with these rockers.