Last year i finally pulled the trigger on heads & cam,intake.I bought trick flow heads & cam Fast 92 intake fly by wire throttle body & yella terra 1.7 ultra light rockers.Very pleased with the tune & hp & torque.435hp 485ft pounds .With less than 2k miles on the engine after all this is done the rocker breaks right at the shaft. I dont pound on this car and i had my local speed shop do all the work i trust him very much matter of fact the car is back there now.Luckily no damage to the motor.Had leak down test done and all is well.Going with Harland Sharp rockers this time.Ive been reading alot about y/t failures they claim it was a small batch,but i have my doubts i wouldnt put a replacement set back in after this mess.Just wondering if anyone else had the same problem.Sorry for the long post

 

You obviously will hear it was a small batch...and you will get some new one under warranty, just pay for the labor and be happy!!!

Let me tell you, you were lucky, but will not always be.

Christian

 

Where did you buy yours from, and when did you get them?

 

last April vengeance racing

 

I just put them on in the spring with my TF225s. I have 7 track days since then, but no issues so far. That is about 5k mi with about 1/3 of them under severe pressure. Hope it was just a fluke thing. Good luck with repair.

 

Clever thread title. I love puns...From what I've seen, Yella Terra has been very supportive in resolving these issues...

 

If it were me,, I would see if Yellow Terra will adjust the damage or replace the set and that way, you will have a set you can sell or use.

BC

 

I had the same problem. Go back to where you were reading on the problem.It will contain all the info you need to have them replaced by Yella Terra.

I was in direct contact with the the owner. A stand up guy! He called me 3 weeks ago to follow up. Its been over a year and 23,000 miles since installed. You can spend the extra $$ to replace with other brand your choice but not needed.

 

That's strange... all the ones that were from the "bad batch" were supposedly made in 2009...

 

I think you got to treat this like any other product made. Any company who makes thousands and thousands of a product is going to have some bad ones. Wether its a whole batch or just a fluke it happens. My concern is how the company handles the issue. If they are helpful and no arguing they will get my buisness again. If they make things diffucult for me and no help, they are done with me.

From what I read yella terra had problems but it was supposed to be fixed. Alot of shops prefer it over other products. The biggest issue with after market rockers actually seems to be people not setting them up right. I personally chose the Harland Sharps. Alot of people say they dont like them but they have been great in my car and 0 issues. I am not being a cheer leader for Harland Sharp just saying what I use on my TFS 225's.

 

I got a set March 09 and have put over 10k and no issues !!

 

I was going to install a set of YTs last year, then the issue of broken ones reared it's ugly head, and I backed away. Thought about Harland Sharps, but thought I heard something at one time, maybe even an HS tech rep, that they're not intended for street use. I even considered the CHE "bushing" upgrade for the OE rockers.

I then took a deep breath, considered how I drive my car, and installed the Comp Cams trunnion upgrade kit instead. So far, so good....

 

As stated previous I had the yella terra rockers that one broke all issues resolved promptly and to my satisfction from a really great manufaturer. That was out of my pocket on my car. On my sons WS6 we did the trunion up grade and they work very well too and he's spraying a H/C motor. It was a $$ thing for his.

 

I'm glad that your issues were dealt with in a prompt and professional manner. I'm also glad that it appears you engine didn't incurr ay damage due to the broken rocker.

Having said that, I have bad memories of something that happened to me a number of years ago, which makes me think twice about valve train 'modifications'. I was setting the valve lash on one of my cars a number of years ago. While doing this, a family member interrupted me with some 'monumental issue', to them anyway, that just couldn't wait until I finished what I was doing. I should have shooed them away, and told them to come back later, but I was way too polite.

Long story short, I didn't get one of the poly-locks tightened properly, and the next time I drove the car, it loosened, which caused the pushrod to pop out of place and ultimately break, and I was VERY lucky that A) I was close to home and limped back; and B) the lifter stayed in place and maintained oil pressure to the engine. Without question, I readily admit that this issue was 100% my fault.

I'm a little suspicious that a broken rocker arm could have the same consequences, therefore my concerns. I'm not bashing YT, just explaining my reluctance to buy a set of their rockers, given the "bad batch" situation, and especially considering that my car is basically a "cruiser", they may be a little overkill for my needs. My only concern was originally raised because of the stories of the OE rockers spitting out their needle bearings....

 

I know two people that have had YT rockers break here in the last month, one of them took out his motor. He called yellow terra and they told him they werent designed tor more than 400 lbs of seat pressure...

 

uh-oh......

 

3rd season on mine, lots of track days, a year or so ago when a few failures started showing up, I contacted Yella Terra and was told my batch wasn't affected, so they'd be ok, and just a month back they e-mailed me as a courtesy to ensure mine were still good, and that I was satisfied with their product. No issues here... I like good customer service!

 

Welcome to the club!

 

What is the cam and which AFR springs do you have?

 

Are you implicitly suggesting that those Yella Terra rockers are not for any LS camshaft and valve-spring application???

Just curious
Christian